K-Tuned 409 Budget Header

Applications: Direct bolt-on for all 02-06 RSX Type-S. This header will also fit RSX Premium/Base models and EP3 with Type S Exhaust.

Features: - Fits RSX with K20 engine ONLY - 4-2-1 Tri-Y Design - 409 Series Steel - CNC cut 3/8" thick SS Flanges - 2.5" Outlet *4-2-1 Tri-Y design with extremely smooth slip fit merge transitions to increase the exhaust flow and power output -Power gains are seen almost everywhere in the power band, not just the top end. -Perfect Fitment

The header features stepped piping beginning with 44mm primaries that progressively move into 48mm, then 50mm secondaries and finally a 64mm or 2.5î exit. Our 409 Series RSX Race Header is assembled with mandrel bent, 409 series steel tubing and is fully tig welded. We also use a slightly thicker gauge tubing that allows for better weld penetration and additional strength. The CNC cut 3/8" thick flanges are also double welded and then ported for optimum flow at entry and exit. This header directly replaces the OEM 2 piece design and eliminates the catalytic converter so we included a short 2.5" test-pipe with defouler for the secondary O2 sensor. Be sure to check out our 3" Oval Tube Exhaust System for the RSX if you haven't seen it already.