So my customer tells me he wants his brand new 2011 Kawasaki ZX10-R ABS to go quicker for trackdays. (His son races Indy cars.) "No problem, Mr. Customer. Sportbike Dynamics can handle your need for speed. Sign here." After doing some research, it was obvious the stock exhaust had to go. I contacted Tim Calhoun, the Big Cheese at Leo Vince USA, to ask him if they had any "go-fast" stuff available for this bike yet. I could hear him smile through the phone. He said their new Factory R EVO II carbon muffler and midpipe was the way to go on this bike. He was so right. My experience with the Leo Vince product line over the years has always been positive. They don't disappoint. The fit, finish and production quality of the Leo Vince pipes are all first rate. The sound, appearance and performance gains are significant. With some help from Bazzaz Performance and Leo Vince Exhaust, the project was started. Here's the stock bike with the OEM muffler: They must have given this SCUD misslie launcher design project to the new guy.