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2004-2006 Pontiac GTO Exhaust Header Gasket

K2 Industries
K2-4521-PON-006-TSARK
Tool Sets and Repair Kits
$110.00 $89.99
$89.99

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2004-2006 Pontiac GTO Exhaust Header Gasket
Exhaust Header Gasket — 2004–2006 Pontiac GTO

Replacement gasket designed to seal the exhaust header-to-cylinder head joint on your GTO's exhaust system. Prevents exhaust leaks that cause rough idle, power loss, and unwanted noise. Direct fit for the original mounting points.

✓ Factory Mounting Points ✓ Ships from FL Warehouse ✓ In-House Quality Check
Key Features
  • Seals header-to-head interface - Stops exhaust gas leaks before they cause performance issues and cabin smell
  • Factory mounting geometry - No drilling, no adapters; bolts straight to original hole locations
  • Ready to install - No prep or finishing required; gasket ships complete
Specs
  • Hard panel construction
  • Factory OEM bolt hole pattern
Whats Included
  • Exhaust header gasket assembly
Frequently Asked Questions

Do I need new bolts or fasteners to install this?

The gasket itself mounts using factory bolt holes; fastener condition depends on your existing hardware. If your header bolts are seized, corroded, or stripped, you'll need replacements—grab a set rated for exhaust manifold temps before you start.

What's the best way to prep the mating surfaces before installation?

Clean both the cylinder head and header surfaces with a wire brush or gasket scraper to remove old gasket material and carbon buildup. Wipe down with a clean rag—you want bare metal contact, no oil or debris. Don't need to sand or prime; just clean and dry.

Can I reuse the old header bolts, or should I buy new ones?

If they came out clean and the threads aren't stripped, you can reuse them. But exhaust bolts see constant heat cycling—if any show corrosion, seizure damage, or thread damage, swap them out. New fasteners cost less than a stuck bolt headache.

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