top of page



  • 02-06 RSX DC5 Type-S
  • 02-06 RSX DC5 Base / Premium models
  • 01-05 Civic EP3 with Type S Exhaust.



*Donut gasket can be replaced by OEM Honda part (18229-PCX-003), you will have to reuse the metal ring.




- Fits RSX with K20 engine ONLY 

- 4-2-1 Tri-Y Design 

- 304 Stainless Steel 

- CNC cut 3/8" thick SS Flanges 

- 2.5" Outlet


The goal with any performance header design, is to get exhaust gases to flow out of the engine faster and more efficiently, which in turn will produce more power and performance. The K-Tuned RSX Header was designed with this exact theory in mind and utilizes a proven 4-2-1 Tri-Y design with extremely smooth slip fit merge transitions to increase the exhaust flow and power output of the Honda K engine. Like most Tri-Y designs, power gains are seen almost everywhere in the power band, not just the top end. Fitment is equally if not more important to us than function and although the subrame and swaybar on the RSX presented some design challanges, the final fitment was definitely worth some extra time. The secondary tubing passes perfectly through this tight area with extra clearanc