what is the cheapest off road y- pipe for the ls1 that connects to the stock manifolds? i was looking at the mac and also the bassani and really couldnt tell if they bolted to the stock manifolds, any input would be great. Thanks for all replys....

 

I am pretty sure they both make one that connects to the stock manifolds.

 

i have the bassani, it attatches directly to the manifolds...


but honestly....you'd be better off spending your money on headers...