K-Tuned KH-421-RAM Ram Style Race Header

K-Tuned Ram Style Race Header (KH-421-RAM) for a 1990-2001 Acura Integra and 1992-2000 Honda Civic.  K-Swap 4-2-1 Ram Header / SS (DA/EG/DC2/EK).

K-Tuned KH-421-RAM  Ram Style Race Header image 1K-Tuned KH-421-RAM  Ram Style Race Header image 2
General product image. Actual product may vary from image(s).

Category: Headers
Product Review: 0 Star Rating

K-Tuned Ram Style Race Header
Part #:
* Paid Link. Pricing last checked at Ebay on 05/12/2021
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All Buying Options:

K-Tuned Ram Style K-Swap Header Honda Civic Acura Integra EG EK DA DC K20 K24 K-Tuned Ram Style K-Swap Header Honda Civic Acura Integra EG EK DA DC K20 K24
Ebay Listing
$569.99 SHOP *
* Paid Link

Fitment Information:


 K-Swap 4-2-1 Ram Header / SS (DA/EG/DC2/EK)

1990 - 2001AcuraIntegra See Notes Above
1992 - 2000HondaCivic See Notes Above

See partnumber notes and applications notes above for specific product information.

The K-Tuned Ram Header at first glance looks like a pretty crazy design. Essentially it is a long tube header that has been pushed up into the engine bay to provide much better ground clearance. However, there is another purpose to all the turns that you are seeing. They keep the exhaust gases hot and when the exhaust is hot it moves out more quickly. So I bet your next question is, “Does it make power ?” The answer is yes. This header is definitely the top dog of K-Tuned swap headers. It beat both our K-Tuned 4-2-1 Swap header and even our 4-1Race header during dyno testing. Also when tested side by side against a header with a comparable tube length we came out ahead again. 

The K-Tuned Ram Header features full 304 stainless steel construction with equal length tubing and a proven stepped design. It starts with 44mm primaries to 47mm to 50mm and finishes with a 65mm or 2.5” exit. It also uses three true merge collectors at all transitions to maximize the exhaust flow. This header has been specifically designed for both high end and midrange horsepower gains. Now for the best part, not only does this header offer excellent ground clearance and shifter box clearance it also fits both K20 and K24 engines in the DA, EG, EK and DC2 chassis. Sorry guys it does not fit the EF chassis.

California Residents:
WARNING: Cancer & Reproductive Harm www.p65warnings.ca.gov

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