New: Mistral V85TT stainless steel header pipes and flanges set. Full "Big-Bore" internal diameter continues from the exhaust inlet throughout the full length of the header pipes allowing better performance and a providing a deeper sounding exhaust note. There is a 50% weight reduction with these header pipes as compared to the original parts. And, thanks to the use of AISI304 stainless steel, the rust problem present in the standard system is solved forever. This header pipe set includes two CNC machined aluminum exhaust flanges complete with Mistral logos. The header pipes have mounting points attached to enable installation of the original equipment heat shields. Also included are two new exhaust gaskets so you have everything you need for a complete installation. No modifications are required, however the best performance is obtained by using in conjunction with the Mistral crossover, slip-on muffler and V-TWINBOOST thereby eliminating any lean fuel conditions.