X pipe was easy to install! the hardest part is to measure everything right and order the right sizes and clamps. But as a handy guy that never did any exhaust work before, I succeeded! The resonator on my 2016 V6 chevy Camaro was making a weird noise dealer quoted $1000+ for a whole new exhaust, the muffles shop quoted $300 for a random pipe to be welded in, so I did it myself thanks to total flow! cut the resonator and the AFM (Active fuel management) valves out and put in a X-pipe and flexible tubes to connect it all back up. Flexible tubes are a bit tighter than i hoped, but it works! I think the flexible tubes are more meant for straight application, to prevent long exhausts from breaking or something. The car makes a bit more noise now that the resonator is gone and the X-pipe is in, I like it! I cant tell if performance improved or not. It did not decrease at least. I wish I cut a little less off of the exhaust so that some clamps would have some more meat to hold on to, but so far I've done 10.000 miles and all is still good! thanks!