Anybody ever tried buying the magnaflow 4" tail pipe and mating it to the STS pipe that comes off the turbo? I had a local shop do a 3" tail pipe witch is press bent so it's probably restricting me quite a bit. How much do you guys think it would help to step up to a 4" tail pipe?

 

if your pushing alot of boost, then yea a 4" would help.
Ill be goin to 4" with the new turbo.

 

How much pipe do I need after the wideband sensor? I'm thinking about just hacking off the crappy tail pipe which would just leave the original STS pipe to see if it will help. I'm running 13psi right now so I think the tail pipe is probably choking it up.

 

not too sure.. id run it about 10" after the turbo, and you need something like 24"? of tail pipe after? i cant remember, call the wideband company tomorrow and see what they say.

 

I had one:

 

BC,, yours is too clean under there


here is what i have now.
Its nice and quiet, but gotta go bigger when i go with more boost.

 

LOL that pic was taken the same day I installed it.

 

I have a straight through magnaflow in front of the turbo. It killed all of the rasp but the turbo is still loud as hell. Summit has the 4" SS tail pipes for around $110 so I think I'm going to get one and have it mated to the STS pipe.

 

I was gonna run a stock dmax tail pipe..

 

Butt mounts, lol. I would most deff go with the larger tail section it will really help out under more boost and it will sound and look really cool!