**DISCONTINUED / No Longer offered**
Rev up your ride! This K-Tuned header is a must - have for 06 - 11 Civic SI enthusiasts. Here's why:
• Optimized Performance: Specifically designed for the K20Z3 engine in 06 - 11 Civic SI models, it boosts power across the RPM range.
• Superior Design: A 4 - 2 - 1 Tri - Y design with large diameter and stepped piping for smooth exhaust flow.
• High - Quality Materials: Crafted from 304 stainless steel with CNC cut 3/8' thick flanges for durability.
Applications: Direct bolt - on for all 06 - 11 Civic SI models, fitting both 2 - door coupe and 4 - door chassis.
Note: Upgrade your rear engine mount to a Hasport rear mount to limit movement.
Donut gasket can be replaced by OEM Honda part (18229 - PCX - 003), reuse the metal ring.
This header directly replaces the OEM 2 - piece design and eliminates the catalytic converter. A short 2.5' test - pipe with defouler for the secondary O2 sensor is included.
If you're an owner of a 2006 - 2011 Civic SI, this K - Tuned header is for you. Whether you're hitting the track or just cruising around town, it'll enhance your driving experience. It's designed to fit 2 - door coupe and 4 - door Civic SI models with the K20Z3 engine. The header starts with 44mm primaries, steps into 50mm secondaries, and finishes with a 2.5 - inch exit. It's made of 304 stainless steel, ensuring long - lasting performance.
