Squeege if you take off the tip and spark arrestor and look inside there is a metal plate that is about 5" inside the pipe. Its a baffle plate. I drilled mine on my old pipe, but be warned, I think it stainless and pretty tough to drill through. It slightly improved throttle response and low end torque. The FMF pipe I put on was a freebie, and it sounds pretty sweet. It is kinda loud, but the power is worth it, if its too loud your too old...HAHA I am gonna put a Dyno Jet Kit on in a couple of weeks, I think it will improve the performance a little bit more. Like other have said, it is no speed demon but great power for trail riding and a lot low end torque.

 

where would i buy the pipe and jet kit for my '06 kodiak 450?

 

denniskirk.com or rockymountainatv.com take your pick