I HAVE to swap from my dual pipes to a single. I'm on the hunt for the infamous rams's horn manifolds, and will get that slick crossover pipe that Texican uses on all of his installs. BUT - I have a 2" die for the JD2... and found some 2" OD exhaust tubing... so , in theory, I can bend up my own exhaust... saving me mucho $$$. But, is a single 2" exhaust good enough for a 305? I have dual 2's right now. Maybe the added backpressure will help my low-end torque, which I care most about? To help myself be comfortable with it, I'm justifying it this way: the exhaust is close to being completely straight (after the crossover pipe), and since the JD2 won't kink the pipe like a muffler bender will, it'll be a full 2" diameter tube all the way back, and my muffler is pretty good. (Dynomax Magnum/ultra-flo welded) 2 1/4" pipe from a muffler shop would certainly be kinked where it's bent, so I'm ahead of the game, right? Engine is a stock '85 305, with only a Performer intake and the exhaust being non-stock.