What is the deal here with the B pipes? Are they less restrictive then the stock B pipes? Any changes in the sound? And is courtesy the only one to offer? I dont want the car to be much louder.. i like quiet cars, so I'm going to keep the stock muffler... and from the HKS post, it doesnt seem like the stock muffler is too restrictive.

I have a 97, so it has the post-cat O2 sensor. Experiences?

 

The Courtesy B-pipe is a very nice piece, but it is very important that you get a straight extension piece to replace that nasty stock extension pipe. Look at my website or GregP recent post on his Courtesy B-pipe. I think Stillen makes one too, but it doesn't have a resonater and will be real loud. The Courtesy B-pipe will not add much exhaust noise since it has a resonator. You will notice a nice difference in power IF you get a straight extension pipe.

Dave

 

from stillen's made my exhaust Hella loud. It doesn't have a resonator. You could go out and buy one and weld one on, but that requires more work.