I have a Nissan Xterra 05 and the way Nissan combined two exhaust systems into one with a crappy pipe is a shame. I had it hooked up at a local muffler shop for a few hundred dollars and it replaced the Y pipe which gave me a lot more power and an extra 2 mpg. Very happy with this product, I would like to point out that this is a large muffler and is about the same volume as the standard on my truck but has a slightly deeper sound. No drones on the freeway and no angry neighbors.