4-2-1 Header One-Piece

Key Features:


Every system is dyno-tested for maximum performance

CAD-rendered, race-inspired 4-2-1 design emphasizes low and mid-range power for street/strip applications

One-piece design improves ground clearance and reduces weight by eliminating middle flanges-significantly lighter than stock and two pounds lighter than two-piece systems!

100% 304 Stainless steel construction including the flanges (polished or brushed), or mild steel with ceramic coating

CNC mandrel bends with robotically-welded fittings deliver perfect fit

CNC-machined and threaded flanges

Equal length primary piping ensures optimum tuning of systems for more power across rpm range

All systems except RACE ONLY systems are C.A.R.B. exempt or pending C.A.R.B. exemption

Includes comprehensive instructions and all necessary hardware