This downpipe is our highest flowing and lowest restriction design for stock frame BorgWarner K03 turbos. Featuring TIG-welded stainless steel construction with a handmade low-angle merge collector, The driver’s side pipe connects using a 321 stainless steel flex section, for the best fit possible. Fitment is designed for all Gen1 and Gen2 3.5L F150 engines – but will not fit Raptor.
 
Features:
Excellent fit and sound quality
321 Stainless flex section with precise slip fit simplifies a leak-free install
Aerodynamic low-angle merge collector for reduced backpressure
Improves turbo spool time and increases overall power
Polished Stainless Steel finish
Plenty of clearance for crossmember, mounting hangars and chassis
Includes all gaskets and hardware needed for installation
For competition racing use only, may not be used on any public roadway