Exhaust fitment problem

[Deviousjet]

I just bought a 3" cat back exhaust with test pipe. Everything fits great however where the 2 1/2" header outlet meets the 3" test pipe there is an exhaust leak. I read on here that a 3 in. exhaust was ideal for NA KA's however after some more research I found out after I bought it that 3 inch is stupid and shifts power-band up etc. I'm pissed that I didn't investigate more but eventual plans are to boost it anyways. So the leak is starting to get annoying. I put the supplied gasket but it still leaks. Any Ideas on what I could do to fix this issue besides welding them together? Don't really want to weld them so I can sell the header later and my future dump pipe will bolt on to the test pipe. Thanks for any ideas.

[ecuastyle84]

Either cut/weld to make it fit or sell the 3" and get a 2 1/2

[Deviousjet]

Lol well that's the easy solution. lol. But it doesn't make sense to sell it to buy 2 1/2 only to buy 3 in later.

[gsxr141]

take it to a muffler shop and let them fix it. it should be easy and cheap.

[Deviousjet]

Hmm I guess lemme rephrase it. Can I fix this issue with putting another gasket on turning the pipe a certain way or should I just grin and bare it. I don't really want to take it to an exhaust shop. I don't want to really alter the piping in anyway

[ecuastyle84]

Lol well that's the easy solution. lol. But it doesn't make sense to sell it to buy 2 1/2 only to buy 3 in later.

Are you running stock headers and downpipe?

[sliderite]

set your car on fire and walk away,.................

[Deviousjet]

No aftermarket OBX header and Aftermarket test pipe.

[Deviousjet]

Lol. Set on fire. That'd be an easy fix.

[hOngsterr]

i have stock headers and DP, to a 3in test pipe, no leaks.

[93nismo]

are you sure thats were the leak is? you may have left one of the original gaskets on were the manifold attaches.

[ATLspeed]

- check to make sure your flanges aren't bent where the leak is.
- use copper rtv gasket maker if anything

* I use the copper rtv maker for mine, my flanges are fuuugged it I get no leak if properly applied

[!Zar!]

Get a better gasket and try again. Make sure exhaust is centered.

[Deviousjet]

are you sure thats were the leak is? you may have left one of the original gaskets on were the manifold attaches.

Nope it's the 3 inch gasket that is supplied with the kit. I will try this weekend to take it off and hopefully recenter it. I was so excited about the exhaust that I just threw it on and go. It is leaking though right from that part as I parked it over sand and the exhaust is actually blowing the sand around under that part.