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View Full Version : frontend conversion.. S14kouki? S15?


seiyess
02-08-2004, 12:15 PM
you have S14zenki and you got into an accident,(front)... so you have an option to switch your frontend... which front would you do??
keep the S14 zenki? S14 kouki? or S15 front?
i think changing it to S14 kouki or S15 is nice cause there are more bodykits available to those....
what do you think??

thelinja
02-08-2004, 12:21 PM
Keep the zenki, because parts are easier to come by and are much cheaper than kouki parts. Besides, the kouki front end looks goofy IMHO without the lip and sideskirts.

typhoonslippery
02-08-2004, 12:22 PM
s14 kouki for sure

KoukiS14
02-08-2004, 12:36 PM
I'm sort of biased. . I like my Kouki frontend. . S15 would never be an option, because it's just. . not right. .and you're stuck with RHD headlights. . however, optional xenon :D

I don't like kouki more than I do zenki. . but it is a bit more rare, you will stand out a bit more. . (everyone asks me where I got my JDM frontend conversion lol). .


but thelinja is right. . it looks WAY better with lip and sideskirts. (I still need my lip lol)

HyperTek
02-08-2004, 01:45 PM
S15 front = your a ricer!!! haha jk, but when a civic or eclipse pulls up next to you with the same headlights, or honda boys ask you where you got your headlights.. its just funny.

Id stay zenki cuz its sexy. Put a Navan front end and it looks classy.

KoukiS14
02-08-2004, 01:57 PM
S15 front = your a ricer!!! haha jk, but when a civic or eclipse pulls up next to you with the same headlights, or honda boys ask you where you got your headlights.. its just funny.

Id stay zenki cuz its sexy. Put a Navan front end and it looks classy.

Yeah. . a friend of mine had an S14 with Navan front end. . its very nice. . especially if you can find the fogs for them . . and Navan all around. . very nice looking upgrade.


S15 matches the S14 very well, but. . I dunno. . it's just. . I dunno. . l'm not so much into oonversions that don't belong on a car that I'd want to do it myself, is all. . but to those that have or want to, I respect that. . because it DOES look nice.

SimpleS14
02-08-2004, 02:09 PM
I had an accident with my Zenki...and I decided to go with the Kouki front end. Mainly because I had plans to do that...just not as soon as I imagined.

If its your money: Zenki

If its someone else's money (but just enough): Kouki (w/front lip and sides)

If its someone else's money and you have more to spend than you can imagine: S15 (sides, rear, and kouki tails is a must)

russian
02-08-2004, 02:12 PM
the only, IMHO, s15 conversion on a s14 would be a stock bumper/trust lip. dont pussyfoot your car with a kit, it meant to be driven hard :squintd:

SimpleS14
02-08-2004, 02:52 PM
the only, IMHO, s15 conversion on a s14 would be a stock bumper/trust lip. dont pussyfoot your car with a kit, it meant to be driven hard :squintd:

Yea, I agree with you. I really like this S15 conversion (in the states)...too bad the color is DULL...and the owner sold it (i think???)...

http://www.bui4ever.com/albums/blxmjx/abz.sized.jpg
http://www.bui4ever.com/albums/blxmjx/aby.sized.jpg
http://www.bui4ever.com/albums/blxmjx/abx.sized.jpg
http://www.bui4ever.com/albums/blxmjx/abv.sized.jpg

seiyess
02-08-2004, 03:11 PM
wow that looks really good~!
i've never thought that S15 will flow nice on S14 body..
but i like kouki front cause it looks mean.. angry eyes~ hahah
i don't know...

Ghettokracker71
02-08-2004, 03:20 PM
For an S14...

S15 Front Conversion=Best

S14 Kouki=my fav. S14 front

EDIT:But you can't go wrong no matter what so....its about what you want:D

WilloW
02-08-2004, 03:24 PM
I like both the S14 Zenki and Kouki, I used to like the S15 front end on an S14 but not anymore. The thing that kept me away from the S15 and Kouki front end is the cost of replacement parts in the event that I hit something. I've found Zenki stuffs much cheaper and more widely available.

Brian
02-08-2004, 03:51 PM
i say screw all those.
straight to cefiro front end.

element240
02-08-2004, 04:00 PM
i personally like the kouki front end better than the zenki.... but dam that s15 conversion looks sweet :coold:

go w/ the kouki front if it's between the zenki and kouki , it looks more aggressive :wiggle:

Brian
02-08-2004, 04:01 PM
just kidding about that.
personally if it was somebody's insurance paying for my car, i would get a kouki front end for sure.

SilviaDriver
02-08-2004, 04:14 PM
Yea, I agree with you. I really like this S15 conversion (in the states)...too bad the color is DULL...and the owner sold it (i think???)...

http://www.bui4ever.com/albums/blxmjx/abz.sized.jpg
http://www.bui4ever.com/albums/blxmjx/aby.sized.jpg
http://www.bui4ever.com/albums/blxmjx/abx.sized.jpg
http://www.bui4ever.com/albums/blxmjx/abv.sized.jpg


i got the same fenders =]

SimpleS14
02-08-2004, 06:03 PM
The thing that kept me away from the S15 and Kouki front end is the cost of replacement parts in the event that I hit something.

Someone did a hit and run on my passenger side (fuckers :fawk2: ) ...man...that will cost me around $600 in parts alone. :bite: Right now I just have a replacement fender (unpainted) and corner light. I'm saving up for a hood and headlight. :-/ I need to stop spending my money on other chit and fix the body of my car.

i got the same fenders =]

http://www.240sxforums.com/forums/images/smilies/useless.gif

SilviaDriver
02-08-2004, 07:17 PM
http://www.240sxforums.com/forums/images/smilies/useless.gif

http://www.imagestation.com/picture/sraid101/p9606f79f49700e844ef267e3fd605747/f9ddf54a.jpg

http://www.imagestation.com/picture/sraid101/p46ddac2a65bb339151e92d68153bfa4e/f9dfffa4.jpg

as far as i know it..there are only 2 of these bumpers on a car in the US
Jspec's s14.5 car..and my car

s14xman
02-08-2004, 09:08 PM
I say go with kouki because you will be flossin maD tYte yO!!! And if you go S15 you will have a lot of headaches and spend a lot of money. Kouki is expensive too, don't get me wrong, but the fittment would be perfect!! My S15 conversion is a pain in the a$$ Im on my second bumper and am still waiting for MASA conversion fenders from Japan because GTP fenders suck a big fat onE!!!

BadMoJo
02-08-2004, 09:38 PM
Stay Zenki!!

nocomedown
02-08-2004, 09:46 PM
dude, be original. go with the s13 front end!

Ghettokracker71
02-08-2004, 09:49 PM
dude, be original. go with the s13 front end!
pop-ups on a S14 ? damn thats a new one

matlock
02-08-2004, 10:23 PM
I like Kouki, and Zenki, but some S15 front ends do look nice. I was going to try to do S15 on my S13, but it does involve a lot more than you think and some of the prodcuts are pure sh1t. (I.E. GTP Fenders). I think the stock S14 front ends are best, but its up to you. I also don't get too into the body kits or that. Keep it stock its not as flashy cops dont notice it as much and then you can smash up your car and not be like oh my beloved body kit lol...thats just my opinion.

BadMoJo
02-08-2004, 10:26 PM
pop-ups on a S14 ? damn thats a new one

Yeah, dope. I have seen it before... DO IT!!

No Motiv
02-08-2004, 10:46 PM
Yeah, dope. I have seen it before... DO IT!!

really? got any pics...like to see that.. it must look kinda goofy. and very custom.....

Stay with Zenki (save your $$$ for better things than S15 front)...you can make a zenki look bling if you want to dont worry...

WilloW
02-08-2004, 10:56 PM
http://www.imagestation.com/picture/sraid101/p9606f79f49700e844ef267e3fd605747/f9ddf54a.jpg

http://www.imagestation.com/picture/sraid101/p46ddac2a65bb339151e92d68153bfa4e/f9dfffa4.jpg

as far as i know it..there are only 2 of these bumpers on a car in the US
Jspec's s14.5 car..and my car
That's the sweetest bumper I've ever seen for an S15 frontend, you must be proud.

SilviaDriver
02-09-2004, 01:26 AM
That's the sweetest bumper I've ever seen for an S15 frontend, you must be proud.

if ur not being sarcastic...yes i am proud..thanks for ur compliment

but if u were being sarcastic..i hate u..ur in Sunnyvale? i am in Sunnyvale almost all day..i shall find u.

Advan
02-09-2004, 10:13 AM
The only reason I came to the conclusion of doing the S15 front conversion on the 240 fastback, is because Chunky Bai has it. But after hearing about how much work you have to do, just to get that, I may just stay with the pop-ups, and make them have the sleepy look, like Koguchi's forest green 240. I think it's Koguchi's.

-E-
02-09-2004, 12:07 PM
Zenki :coold:

brianglawson
02-09-2004, 03:01 PM
i say zenki, becasue it is sexier than a kouki, but if you can spring for some euro/jap glass headlights

WilloW
02-09-2004, 03:08 PM
if ur not being sarcastic...yes i am proud..thanks for ur compliment

but if u were being sarcastic..i hate u..ur in Sunnyvale? i am in Sunnyvale almost all day..i shall find u.
Hahah I was not being sarcastic, I think the bumper is very nice and unique. I'm in sunnyvale near the drive thru starbucks everyday.

nurspecsil
02-10-2004, 01:59 AM
I would stay with the zenki headlights and get either those sweet clear lenses that everyone is talking about or the euro glas ones.

WilloW
02-10-2004, 03:10 PM
i am in Sunnyvale almost all day..i shall find u.
Hey man, I think I saw your car at DeAnza today. You drive a red S14 w/
S15 frontend? If yes, I holla next time I see you.

iyceman
02-19-2004, 01:04 PM
HID modded euro zenkis or strawberry. Keep the zenki tails tho, they're 1000X hotter than the kouki tails.

jtt220
02-19-2004, 01:28 PM
Zenki, now if someone would just make some inexpensive glass lenses...........
Oh, my reason is because it looks very nice and it's ALOT cheaper to do. Spend your extra money on some good tires!

KyoLo
02-19-2004, 06:27 PM
yes, stay Zenki
coz your taillight flows with zenki headlights.

aznpoopy
02-19-2004, 08:03 PM
i say zenki too. i started out liking the the s15 front but after a while it just lost appeal to me. to me zenki is like that so-so girl u start to like more after dating her longer... while s15 is like 'whoa shes hot' but after a night or two you're done. :w00t:

russian
02-19-2004, 08:11 PM
hmm you date so-so girls? :tweak:

CleanS14
02-19-2004, 08:52 PM
just stay zenki man... i'm gonna do a zenki conversion!!!

SimpleS14
02-19-2004, 09:52 PM
just stay zenki man... i'm gonna do a zenki conversion!!!

:goyou:

sell me your kouki turn signals if you really do :x:

aznpoopy
02-19-2004, 10:09 PM
hmm you date so-so girls? :tweak:

lol! my deepest darkest secret is revealed! noooo!

seriously tho, i haven't ever seen a really hot asian girl. i mean the full package - personality, face, body. personality and face can be good but the rest falls a little behind... it balances out. they're all just 'ok'. even my fav asian gal natty yi is a little lacking in the butt. oh well.

mmmm sorry if i offended any females. :sadwavey:

seiyess
02-20-2004, 01:49 AM
i really love my zenki front.. but i just think that S15 conversion is.. you know... different. rare.. hmmm
more challenging.. more work.. and more fun..
i think every car looks good when it is done right... was it too obvious..?.. :duh:

SimpleS14
02-20-2004, 07:51 AM
hmmm
more challenging.. more work.. and more fun..


more money than you probably want to spend..

TougeRacing
02-20-2004, 09:10 AM
pop-ups r alwaysss sexxxyyy and its a PLUS+ when its set witht he lazy eyes!

russian
02-20-2004, 09:20 AM
how about a jdm integra conversion? :naughtyd: :naughty:

CleanS14
02-20-2004, 11:29 AM
:goyou:
sell me your kouki turn signals if you really do :x:

I'm gonna keep the front end if I do the conversion... but I still might sell the turn sigs to you since I can always pick up a pair another time. I'll let you know.

SimpleS14
02-20-2004, 12:18 PM
I'm gonna keep the front end if I do the conversion... but I still might sell the turn sigs to you since I can always pick up a pair another time. I'll let you know.

If you give me a good deal.....I WANT THEM...no...I NEED THEM :bigok:

Strategos
07-11-2004, 09:49 AM
I'm gonna drag out another lost thread just because I think no one mentioned the jdm s13 silvia fronts on a s14. I want to see pictures of that again if I have already... As for popups I think they looked great on the s15 photos but I would get s13 silvia front w tripple projectors on that s14 if I was going to do it.

Grant
07-11-2004, 10:41 AM
they've done pop ups on a s14 before. or try an s13 (fixed headlights!)front :D I've seen both.

I like how the kouki looks, but zenki can be had for fraction of the price. do depends on how long u think the front will last to your driving habits.

420sx
07-11-2004, 10:46 AM
I'm gonna drag out another lost thread just because I think no one mentioned the jdm s13 silvia fronts on a s14. I want to see pictures of that again if I have already... As for popups I think they looked great on the s15 photos but I would get s13 silvia front w tripple projectors on that s14 if I was going to do it.

no there is, kazamas car. i was gonna do the s13 jdm on my zenki but the cost is crazy. popus look sexy on s14 too, theres couple pics somewhere on the forum look around

vba07
07-11-2004, 11:35 AM
sorry but i am very new to this stuff. I was just wondering what is a S14 zenki? and the S14 kouki? It would be great if any of you guys can post pictures. Oh yeah i just wanted to know how much would it cost to do the S15 conversion on the S14 body?

Strategos
07-11-2004, 11:50 AM
95-96 240sx rounded lamps = zenki
97-98 240sx slanted eyes = kouki
s15 on s14 body = strawberry face AKA 14.5 -$2500-$3500 depending on parts chosen

a s13 silvia fron conversion is less at around $1300+ probably but is usally done on s13 models but I wouldn't be bothered by a s14 with a s13 silvia front. :hitit:

420sx
07-11-2004, 11:57 AM
hmm how much wider the s14 front is compare to s13? theres gonna be a lot of cuttin if i do the pop ups. will be easier to do jdm s13. the good part is the front end (pop ups) is dirt cheap. but how custom work is :eek2:

Strategos
07-11-2004, 12:22 PM
hmm how much wider the s14 front is compare to s13? theres gonna be a lot of cuttin if i do the pop ups. will be easier to do jdm s13. the good part is the front end (pop ups) is dirt cheap. but how custom work is :eek2:

I like popups on a s15 or s13 but I saw a s14 with popups and I'm almost certain the JDM s13 silvia front on a s14 would satisfy me. I can't really get technical with the answers though.

Johny5
07-11-2004, 12:27 PM
shit, i wrecked my kouki front end on my 98 and almost went zenki. zenki asks and begs for gracer lip/zenki skirts/jdm rear bumper with molded endcaps. and the lines of the zenki face flow so good with the car. all stock 95-96s lack is kouki tails.

but, i did not go zenki due to depreciation of value in the car for the riceboy that might end up buying it. plus kouki ings+1 kit is fucking hot ... in the future

Strategos
07-11-2004, 01:01 PM
zenki looks good in rice too with a "silvia" grill added. speaking of rice I think I will make some to eat now.

YellwMonky
07-11-2004, 02:16 PM
koooooooooooooooooooooooooooooooooooouki

pruto
07-11-2004, 02:35 PM
i like my zenki, and if i ever get to fixing the headlights, straightening the frame, repainting the front. it'll look hot again.

i love the zenki front cause everyone else dogs on it, and its overshadowed by every other s chasis front, i like underdogs. especially one that doesn't look half bad.

http://www-scf.usc.edu/~paulli/10503car.jpg
back when it looked good and not beat up =p

Strategos
07-11-2004, 02:49 PM
It's not beat up in that picture, is it? I kinda thought it was becuase the reflection can be seen so well on the convex part of the fender that it has a real wave distorted look. ;)

I'm thinking about getting a specific kouki but if anything happened to it I'd want to know how a jdm silvia coupe front would look on the s14. Anyway though I'm not sure really which s14 original front is < better > some days you feel like kouki sometimes you want Zenki. If ther was only of the two to choose from for all of 95-98 it would all be the same still.

off topic, hmm if you have molded side skirts and you destroy a fender is that going to be too much more extremely difficult to get back to normal than if you didn't have molded skirts? I mean theoretically if it was that bad you could just cut the skirts' seems and put new skirts over where the old ones were but without molding once a replacement fender is found. I only say that as an option because wouldn't it require a complete new paint job and a new skirt to have to be remolded to the replacement fender and rear quarter panel.

Basically is this last statement true and if so could the molded skirt just be broe out and thrown out with the ruined fender to be replace by a new skirt without new molding and paint other than the skirt getting paint itself, and perhaps get the other side skirt taken of and replace it to so that they ride up higher than the old seem for good measure. My mind would go crazy if I was considering buying something that had body work such as molded side skirts already on it...

StupidGreen87
07-11-2004, 03:39 PM
Sell the car, import an S15, and do a usdm integra front end conversion.
oh, the irony!

oojpeeoo
07-11-2004, 05:15 PM
iduno personaly i dun like s15 front end conversion...actually i dun like s15... taillights are ugly and the front end DUZ look ricer

Strategos
07-12-2004, 02:22 PM
Can I see a pictue of a s14 with the same front end that a Sil-80 has (jdm s13 silvia front). I looked for about an hour last night and wasn't lucky.

ICKY
07-12-2004, 02:34 PM
Me, as a zenki owner, i'd either stay zenki for my first option, 2nd would be to go S15 front end(and if i had alittle extra cash laying around), cuz my brother could hook me up with the parts :D

papershot
07-12-2004, 02:40 PM
I hate the yellow headlights on zenki's. :\
Would have to get the euro ones.

Strategos
07-12-2004, 03:04 PM
I'm thinking I want the s14 sil-80 (the non popup s13 lights for my s14)

here is a pic I thought it was just a s13.5 but someone said it was actually a s14 with s15 tails and the s13 silvia front: http://www.imagestation.com/picture/sraid37/p7ed67f13428e36a45714ab0ad3370de2/fd1adeaf.jpg

The reason I thought it was a s15 is because those look like s15 rear quarter windows but they may be s14 afterall. Who is the one who scanned this tiny pic? If it is a s14 I think it is Teh sex even with s14 tails. If that pic is a s15 then can someone show a pic a s14 with the s13 silvia front. Hehe this is going to confuse people who are just learning how all the denotations work.

SimpleS14
07-12-2004, 03:31 PM
It's a S14 and I believe Dousan scanned the image.

X-Iceman
07-12-2004, 03:54 PM
no i think its a s15. look at the tail lights

Strategos
07-12-2004, 03:58 PM
I think the tails may have originally been s14 though. MAybe we should be looking to see if it's not RHD.

Question is can it be done with oem parts. It would be cheaper than a kouki or strawberry face but would the modification be harder than those?

thanks

+1

TurK
07-12-2004, 06:16 PM
Here is the reason why u need to stay Zenki....


http://www.zilvia.net/f/attachment.php?attachmentid=7679

TurK
07-12-2004, 06:18 PM
Here is the reason why u need to stay Zenki....


http://www.zilvia.net/f/attachment.php?attachmentid=7679

MakotoS13
07-12-2004, 06:22 PM
i hereby give turk the best comment of the thread award.

beautiful...

BSeay
07-12-2004, 06:54 PM
The link Turk posted is the REASON i stay zenki, i mean euro-headlights are the SEX!

pruto
07-12-2004, 09:49 PM
BSeay, those aren't euro headlights, they look like the pastic headlight covers from a japanese company (name escapes me)


s13 lights -> square
s14 body -> round

the only reason y'd do that conversion would be to be different, but, it doesn't flow well.

SimpleS14
07-12-2004, 10:27 PM
no i think its a s15. look at the tail lights

no its a S14...look at the door and rear quarter glass. The car has a S13 front end and S15 taillights...hence why you see "S13 . 4 . 5" in the pic.


now look at a real S15....

http://uras.co.jp/aero_image/s15silvia_type3_02.jpg

TangyXTC
07-12-2004, 11:03 PM
ZENKI!
The only reason why im keeping my zenki...

http://memimage.cardomain.com/member_images/11/web/623000-623999/623203_12_full.jpg

http://www.imagestation.com/picture/sraid128/p624f9d78a22234c541570bae49267f08/f7df041f.jpg

http://www.imagestation.com/picture/sraid128/p624f9d78a22234c541570bae49267f08/f7df041f.jpg.orig.jpg

whats wrong with imagestation??!

OptionZero
07-13-2004, 01:00 AM
JDM S14 Kouki aero> ______ (insert any other variant)

on second thought:

JDM S14 Kouki aero w/ Turdz's OEM S2000 HID retrofit > all :hsdance:

kcolyer27
07-13-2004, 09:09 AM
Stay s14 97-98 style (forget the jap name) I have s15 front end and im not that big of a fan. it was a pain in the ass to get it fit right. I personally like th e97-98 front end. But with s15 front end alot of people do manage to think my car is a skyline lol. Its sexy none the less but I would never spend money for the conversion. I traded my car for a car with the conversion already done.
http://server6.uploadit.org/files/skribbble-240s.jpg
http://server6.uploadit.org/files/skribbble-IMG_1569.jpg
http://server6.uploadit.org/files/skribbble-IMG_1561.jpg
http://server6.uploadit.org/files/skribbble-IMG_1568.jpg

OptionZero
07-14-2004, 12:13 AM
next time i see that bumper i'm gonna smash it up

SilviaDriver
07-14-2004, 01:12 AM
that s13.5 flows oh so wrong

mikeisnumber58
07-14-2004, 01:54 AM
Why im keeping my zenki front end.... its not mine but its blazin!!

http://memimage.cardomain.com/member_images/11/web/347000-347999/347037_34_full.jpg

:boink:

NotDave
07-14-2004, 02:22 AM
i really like the s15 front end with an OEM s15 bumper and a lip. s15 headlights have to be the most beautiful headlights ever made.

s15 > kouki > s13 slivia > zenki > s13

Strategos
07-14-2004, 06:10 AM
that s13.5 flows oh so wrong

there is no s13.5 or there would have to be a s15 chassis involved, there is an s13.4.5 and also a s15.3

BlackS14
07-14-2004, 08:56 AM
Keep the zenki, because parts are easier to come by and are much cheaper than kouki parts. Besides, the kouki front end looks goofy IMHO without the lip and sideskirts.

A quick heads up......don't know about the rest of the parts concerning the front end, but I know for a fact that the Kouki headlamps are actually cheaper than the Zenki.......no clue as to why this is, but it's true...

-bill

Bliss
07-14-2004, 01:43 PM
there is no s13.5 or there would have to be a s15 chassis involved, there is an s13.4.5 and also a s15.3

actually, most people call it a s13.5.... s13 body, s15 front. just like a s14 with a s15 front end is an s14.5.

that s13.4.5 was an s14 chassis, s13 front, and s15 rear end.

NiZMo1o1
07-14-2004, 01:59 PM
kcolyer27 ,your ride is sweet... I wanted to do the same if I can find a Coupe

Shin_Kudo
07-15-2004, 01:37 AM
Sell the car, import an S15, and do a usdm integra front end conversion.
oh, the irony!
Chech the current issue of option. Someone did a USDM DC2 face convo to a 180SX! It's hideous!

Back on topic, I'd stay Zenki and go Navan.

Strategos
07-15-2004, 09:49 AM
a few people can call it that but the one consistent rule with just using the numbers for denoting it is that the front end style always is the first part of the denotation, then after the decimal is the chassis. Remember that and your all good.

tranzilla
07-16-2004, 01:38 PM
Here is the reason why u need to stay Zenki....


http://www.zilvia.net/f/attachment.php?attachmentid=7679

What front bumper and side skirts is that?

mike13
07-16-2004, 02:07 PM
a few people can call it that but the one consistent rule with just using the numbers for denoting it is that the front end style always is the first part of the denotation, then after the decimal is the chassis. Remember that and your all good.
please shut the fuck up if you have no idea what you are talking about.
Everyone on this board, and every other forum or conversation that i've read or heard calls it an s13.5 or s14.5.
Its an s13 chassis, hence the name s13.5

Strategos
07-16-2004, 04:12 PM
that just shows what diference of opinon exists. Show some backbone if you're thrown into distress over a message posting I'm sure your a real backer of words in facing off with someone you little bitch.

OptionZero
07-16-2004, 09:27 PM
Except that he's right and you're wrong. An s13 with an s15 front end is an s13.5. Your response makes you look as bad as you claim HE looks, so shut the fuck up.

mrmephistopheles
07-16-2004, 10:20 PM
NO NO NO It's a S311231.123.1.2.1.21.3.43+T13.5DET!

Idiots. Chill yourselves out. To skip all the confusion and animosity WRITE OUT what you're talking about.
An S15 with 180sx headlamps! An S14 with S13 Silvia headlamps! An S13 coupe with S14 kouki (or later version if you don't do the Zenki/Kouki thing) front end!

All this S13.5 - S14.3 / S13.4.5 = Sqrt of KPCG10 is DUMB.