4 inch down pipe?
 

ok have asked around and am not really getting a clear answer so i will try here.

Looking to do a 4 inch down pipe on my setup wanna know will this fit, starting from the turbo? I know ounce i go under the car it will fit but mainly in the engine bay is my concern.

This of course is a SR and its in a s13 chassis.

if anyone has done this and has pics please post them up. would like to see how it looks.

Do you really need a 4 '' dp ? Whats your engine setup ?

i think it is gonna be pretty hard to fit it with the brake assembly.

Not worth the hassle of getting it to fit. At least not if your going for 3 digit horsepower figures.

Uhh... what? Guess folks been having trouble breaking into the 100 HP range eh? lol


:tardrim:

I think he meant like 300+ but below 4 lol

since when did zilvia become a diesel truck forum?

No he meant like 3 digits. That could be anywhere from 100-999.

Basically it's pointless to run a 4in downpipe if you're looking for something in the 3-digit range.

a 4" down pipe would be perfect for a rb, or 1j or 2j with a MASSIVE turbo, but on a sr, 3" is more than enough, now if your sr was complletely built stroked to a 2.2 with cams, and a full fuel system 720cc injectors+ pushed by a t61 then maybe, and this is almost a drag setup to utilize a full 4" exhaust, but ifyour thinking a 4" down pipe to a 3" exhaust system, again all not worth , spend you money and upgrade something else

ok cool thanks for all the info guys. only thing that i am not touching right now will be the bottom. only due to funds.

My buddy has a 4inch dp on his cefiro, but he also has a rb20det with a holset HE351 turbo off a cummins diesel motor...

I dont see any benifit of this on a sr20det, spend the money elsewhere....

Are you worried about the flow restriction from a 3'' downpipe? Do you have 4'' exhaust from the downpipe back?