GM LS Cast Iron Exhaust Manifolds Black Finish Air Intakes The Relentless Automotive Development high

The Relentless Automotive Development high flow downpipe is engineered specifically for the Ram RHO and HO platform to improve exhaust flow and reduce restriction while maintaining precise fitment and long term durability

9 in Length - 150 lb/in Spring Rate - Steel - Black Powder Coat - Each

5 in Diameter - Stainless Tip - Stainless - Natural - Ford Modular - Ford Mustang 2005-10 - Kit

100 in Backspace - 5 x 4

81 in OD - C4-R6 Valve - Digressive - Steel - Zinc Plated - Each

GM LS Cast Iron Exhaust Manifolds Black Finish Air Intakes The Relentless Automotive Development highExhaust Manifold LS Cast Iron 2. 25 in Outlet Ductile Iron Black Ceramic GM LS Series Pair