Hi I have a fairly stock 240 turbo hybrid and I want to start upgrading it. Right now it is useing the stock t3 which I'm going to keep for now, possibly upgrading to a hybrid but I understand the exhaust side is the same anyway. It has the stock down pipe and 2.5inch exhaust running through some cat to a generic looking muffler. I've read the sticky about building up the engine and read a lot of your posts and it seems like a 3inch catless exhaust with a high flow muffler is best. Now to my question. MSA sells a 2.5 inch downpipe and the sticky faq recomends such but a lot of you run a 3 inch pipe. Is there much advantage to this considering the turbo output is less then 2.5inch?
thx,
John