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 increa