2004 Pontiac GTO Long-Tube Header Installation - Easy Breather
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With the factory system completely removed from the Pontiac, you can see how restrictive the stock 2-inch-diameter system is compared to the new Stainless Works system. Note the crimps just after the catalytic converter on the old system. Now let's see what it takes to get out the old exhaust and install the new headers. View Related Article
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