ASP Headers Logo
our quality is your peace of mind.

*** IMPORTANT MESSAGE ***

  • ASP Honda Civic Si Header
06-11 Honda Civic Si Custom ASP Header

Part# ASP-HDR-CVCSI-06-11-K20

Part# ASP-HDR-CVCSI-06-11-K24

The FG2 Civic Si 06-11 Custom ASP Header is designed in 304 stainless steel, made to not rust.
Individually fabricated to match each client's motor specs.
Designed with stepped equal length runners, and uses a true 4 into 1 merge collector to insures optimum air flow efficiency and full hp:tq potential. The megaphone/reverse cone is highly beneficial in delivering maximum peak horsepower and power bandwidth. Made in USA.

HONDA • ACURA

06-11 Honda Civic Si Custom ASP Header

K20 / K24

$1650

What's Included

  • All US grade 304 stainless steel mandrel bends. Machined K series head flange. Mandrel bent equal length primary & secondary runners. ASP Headers badge, 4 beehive collector springs, 8 tabs, 1 compact true 4-1 merge collector, One o2 bung, and exhaust option choice.

Compatibility

  • FG2 & Fa5 chassis
  • 2.5" EXHAUSTS use test pipe with 3 bolt standard exhaust flange hooks up to deleted stock cat location.
  • 3" EXHAUSTS use 3" megaphone, reverse cone and v-band assembly hooks up after stock cat custom exhaust location.
  • 3" FULL RACE EXHAUSTS use 2.5" test pipe with transition to 3" Full-Race 3" 3 bolt exhaust flange.

Shipping

  • Wait times apply.
  • To request a shipping quote outside the US, please contact us prior.

Restrictions

  • O2 sensor extension required.
  • Off road use only
  • Deletes stock cat

Weight

  • 17 lbs