xHypex

iTrader: (1)

I am about to put an exhaust on my car, but I can't find specs on the size of any Y-Pipe.... either Stillen or Cattman. I was going to put a 2 1/4" cat back system on my car, but if the pipe is 2 1/2" then I'll probably reconsider so I can add a Y-Pipe in the future. So does anyone with a Ypipe know the dimensions?

machavez702

the tube that connects to the exhaust manifold is 2" o.d. and more importantly 1.75" i.d. The tube that connects to me catalytic side is 2.25" o.d and 2.125" i.d. In case you're wondering if I am just going from memory, I'm not. Just got my Y in yesterday and am measuring it now.