What exh system in your S2 "street car"?

[Alky V6]

My 5 inch exits in front of the right front tire, just below the fender, along with a 2" wastegate pipe just in front of that. The spoiler is cut so that the pipes can fit tight to the fender. Both 304 stainless. It looks wicked. Turns a lot of heads at the track. They're both angled back to face toward the rear at about a 45 degree angle. For a race only application, I don't see the point of running it all the way back. There is room to install a bullet muffler, if needed off the turbo a bit. Burns makes a 5 inch shorty. Take some clues from the import classes. Unfortunately, we've allowed them to become the state of the art.

 

[Alky V6]

Something to keep in mind. Pipe length and bends in that pipe add to restriction as does too small a diameter. Not saying that 4 inches is too small. Just something to ponder when putting your exhaust system together.