For Your FAST parts in Canada & USA, call Marken Performance @ 1-888-401-1362
The FAST LSXRT 102mm Intake # 146105B (full polymer manifold with runners) is available thru Marken Performance. This LSXRT High HP version gives LS3 engines with rectangle ports more plenum volume for all-out racing. The raised 102mm throttle body location optimizes the larger, less restrictive high HP runner design, creating 30+ more HP over the FAST® LS3 Street Manifold at high RPM. There is ability for nitrous ports and porting.