This pipe is amazing, helps from top to bottom but it will burn your boots and pants. I suggest that you buy just the exhaust and then buy the stainless header. This will help with the burning and will have the same power as the titanium
The Pro Circuit Ti-4 GP system is designed as a total performance exhaust system. The Ti-4 GP Low Boy version was designed to lower and centralize the dirt bike's center of gravity for better handling. This exhaust system is dyno and track tested by riders like James Stewart, Ricky Carmichael and Ryan Villopoto as a no-compromise full-race exhaust. The ultra-lightweight titanium Ti-4 GP is Pro Circuit's premium exhaust system and it includes their titanium header pipe. The Ti-4 GP exhaust will boost performance from bottom all the way to the top end, making it easier to ride and lowering lap times. The silencer can is easily repacked simply by removing the inlet cap screws and re-wrapping the silencer core. The Ti-4 GP meets all AMA sound restrictions. This is the exact same exhaust system that won four out of five AMA National and Supercross titles in 2007.