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We are now offering a few header options from SLP. The first is their mid-length headers with highflow converters. T

Designed specifically for GTO applications, these headers employ 1 5/8" primaries and a mid-length tube configuration to provide substantial power increases throughout the rpm range. Team them with one of our Loud Mouth or Power-Flo™ cat-backs to create a fully optimized exhaust system.

GTO Header Features
Constructed entirely form mandrel-bent 304 stainless steel
Worth up to 15 additional rear-wheel horsepower
Aluminum-ceramic coating provides superior performance, appearance, and component longevity
Easy bolt-on installation—no cutting or welding required!
Includes high-flow catalytic converters, matching down pipes, detailed instructions, and all required installation hardware

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The next is the same headers but with offroad pipes (no cats).

Both of these can also be ordered without coating. Our part numbers and pricing is -

30160 2004 SLP GTO Mid-length headers with cats $899.99
30161 2004 SLP GTO Mid-length headers with race pipes $849.99
30162 2004 SLP GTO uncoated Mid-length headers with cats $809.99
30163 2004 SLP GTO uncoated Mid-length headers with race pipes $759.99