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46 Posts
I'm kinda new to the site but so far loving it. I have an 08 LS 5-speed.
The only performance mod I have so far is a K&N short ram intake, the rest is all visual.
I'm planning on doing custom exhaust, bending the pipes myself and everything. I have a mandrel and welder. The only thing that confuses me is what diameter pipe to go with, I want either 2.5" or 3". I'm pretty sure stock is either 1.75" or 2" so it sounds like a big jump, which is whats confusing me.
Would it be robbing my engine if I went with 3" pipe? Also, any recommendations on header and dp with a high flow cat?
The only performance mod I have so far is a K&N short ram intake, the rest is all visual.
I'm planning on doing custom exhaust, bending the pipes myself and everything. I have a mandrel and welder. The only thing that confuses me is what diameter pipe to go with, I want either 2.5" or 3". I'm pretty sure stock is either 1.75" or 2" so it sounds like a big jump, which is whats confusing me.
Would it be robbing my engine if I went with 3" pipe? Also, any recommendations on header and dp with a high flow cat?