06-11 Honda Civic SI FG2/FA5 Header Stainless Steel

$219.99
$219.99
$270.00
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06-11 Honda Civic SI FG2/FA5 Header Stainless Steel

Stainless steel header built for the FG2/FA5 SI platform, designed to flow better than the factory cast manifold. Constructed from mandrel-bent tubing and TIG-welded for durability. Direct bolt-on fitment eliminates guesswork on install day.

✓ Stainless Steel Construction ✓ Factory Mounting Points ✓ Ships from FL Warehouse
Key Features
  • Mandrel-bent tubing - Maintains smooth internal diameter for consistent flow and minimal turbulence
  • TIG-welded joints - Stronger seams than MIG welding, resists thermal cycling stress
  • Direct bolt-on design - Uses factory attachment points, no custom fabrication required
Specs
  • Material: Stainless Steel
  • Construction: Mandrel-bent tubing, TIG-welded
  • Configuration: Direct bolt-on for FG2/FA5 platform
Whats Included
  • Header assembly
Frequently Asked Questions

Do I need to replace my exhaust manifold gasket when installing this?

Yes. The factory gasket compresses during removal and won't seal properly on reinstall. Pick up a new one before you start — you'll need it to prevent exhaust leaks at the head.

Does this header come with a heat shield?

Header assembly only. Heat shielding is sold separately and depends on your engine bay layout and what components are nearby — measure your clearances before ordering.

Will I need a custom exhaust tune after installing this?

This header flows better than stock, which can affect your air-fuel ratio. If you're running a tune already, verify compatibility with your tuner. If you're staying completely stock otherwise, most drivers report no issues, but monitor your fuel trim if you have a scan tool.