K2 Industries
02-06 Honda Civic SI / Acura RSX Exhaust Header Stainless Steel
02-06 Honda Civic SI / Acura RSX Exhaust Header Stainless Steel
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Stainless Steel Exhaust Header
Cast stainless steel construction built for the Civic SI and RSX platform. This header replaces the factory cast-iron unit with corrosion-resistant stainless that flows cleaner from the combustion chamber to the downpipe. Engineered for bolt-on fitment at factory mounting points.
Key Features
- Stainless steel tube design - Resists rust and thermal cycling better than OEM cast iron
- Direct bolt-on fitment - Mounts at factory exhaust manifold locations with no modification required
- Improved exhaust scavenging - Smooth internal passages reduce turbulence and back pressure
Specs
- Material: Stainless Steel
- Configuration: Cast tube design
- Condition: New
Whats Included
- Exhaust header assembly
Frequently Asked Questions
Do I need a new gasket when I install this?
Yes. Use a fresh header gasket at the cylinder head flange — reusing the old one risks exhaust leaks. The factory gasket compresses over time and won't seal properly against the new header.
Can I bolt this directly to my stock downpipe?
Depends on your downpipe. Most OEM downpipes mate at the standard flange, but test-fit before final tightening. If there's any gap, you may need a reducer or custom adapter — we recommend checking fitment before ordering a full exhaust system.
Does this need to be painted or coated after install?
No. Stainless steel doesn't rust in exhaust heat, so bare stainless is safe long-term. If you prefer a finished look, high-temp ceramic coating can be applied, but it's optional for corrosion protection.
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