I seen that STM makes a aluminum catback but Im unsure of how thick the piping is. Im also in the process of tiggin my own charge piping so Im kind of interested in making a catback also. Anybody on here have one?

The downpipe will need to be stainless because of heat, this I know of

3 inch aluminum piping but how thick?

 

If no one answers I'll take the calipers to mine when I get off work. I've got STMs laying on my couch at home waiting lol.

 

Why not ask STM? They always answer questions quickly when I've asked!

 

Yes please, 3/32nd I assume

 

I sent em a email same time I posted this thread.

 

16 gauge gets the job done.

 

Measured mine a min ago. Looks to be 3/32. Had it on my car for about 6 months and love the sound. Looks to be holding up very well too.

 

Is anybody using a different downpipe with theirs? Thinking doing a 3' buschur downpipe and the stm aluminum cat back

 

That's actually the exact setup I have. I've notice the Downpipe hits the T-case a little with this exhaust though. I'm thinking about ditching the BR downpipe and buying a MAP one piece. Here's a video with the exhaust. . I have a few more videos including a dyno with the same setup.

 

Ours is .065 wall before its polished.


-Em

 

do you have pictures of it hitting the t-case? or is this only when the motor moves a bit during hard excel?

 

I have the map 02 eliminator down pipe with my STM aluminum exhaust with STM race pipe. I have no issues with fitment

 

It's pretty close to the T-case from the start. During some quick turns or fast decal it will hit. Never heard it hit under power though. Also I do have a Torque Solutions front motor mount installed.

 

probably an evo 8 downpipe if it's hitting?

 

Nope, it's the BR evo 9 down pipe. Got the bend to clear the ACD but it doesn't.