I bought the "Heartthrob" brand dual exhaust kit. It appears to be the same kit that LMC, JC Whitney, and others sell. It's 2.25" mandrel bent pipe, and is available in several different configurations, with glasspack or turbo mufflers, and side or rear exit tailpipes. It installed easily in the driveway, then I went back and added a crossover after I put in my lift. With the long turbo mufflers and the crossover, it's not much louder than the stock pipe, but there was a noticeable seat of the pants power increase, and around 1-2 mpg improvement on the highway. I did take the advice from a thread on this forum, and ordered different hangers. The ones that came in the kit would have been difficult to use
