Kooks

Kooks 1-3/4" x 3" SS Headers. 2011-2014 Shelby GT500. - 11422200

$1,631.68

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Lethal Performance is proud to announce the Kooks Custom Longtube Header System for the Shelby GT500. If you guys don't know Kooks has been bending and welding custom headers for over 30 years! The end result is one of the nicest works of art that you could ever imagine putting on your car.
The Kooks Custom Headers for the GT500 are Mandrel Bent out of T-304 Stainless Steel and welded with one thing in mind..."Precision"

The Shelby GT500 Headers are also made with 1-3/4" Primaries which all flow into a 3" Merge Collector and with your choice of X-Pipe.

Testing with these headers yielded 38rwhp and 40lbs of Tq with the Catted X-Pipe Version. Not only do these headers add performance but the sound of your Shelby will be turned into what it should be. A deep muscle car sound is what you can expect from these bad boys!!!

The Kooks header kit comes complete with all necessary hardware and 02 extensions!

If you have any questions regarding any of Kooks exhaust products please feel to call your Lethal Performance Sales Associate today.

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Kooks 1-7/8" x 3" SS Headers. 2011-2014 Shelby GT500. - 11422400

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$1,786.92

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Lethal Performance is proud to announce the Kooks Custom Longtube Header System for the Shelby GT500. If you guys don't know Kooks has been bending and welding custom headers for over 30 years! The end result is one of the nicest works of art that you could ever imagine putting on your car.
The Kooks Custom Headers for the GT500 are Mandrel Bent out of T-304 Stainless Steel and welded with one thing in mind..."Precision"

The Shelby GT500 Headers are also made with 1-7/8" Primaries which all flow into a 3" Merge Collector and with your choice of X-Pipe.

Testing with these headers yielded 38rwhp and 40lbs of Tq with the Catted X-Pipe Version. Not only do these headers add performance but the sound of your Shelby will be turned into what it should be. A deep muscle car sound is what you can expect from these bad boys!!!

The Kooks header kit comes complete with all necessary hardware and 02 extensions!

If you have any questions regarding any of Kooks exhaust products please feel to call your Lethal Performance Sales Associate today.

Learn More

Kooks 3" x 2-3/4"(OEM) SS Off-Road Race Only X-Pipe. 2011-2014 Shelby GT500. - 11423100

$1,093.42

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Kooks Shelby GT500 3" High Flow Off Road X Pipe bolts to all cat-backs that use factory 2-3/4" diameter tubing at the factory connection point. The Kooks Off Road X Pipe will give your exhaust that VERY aggressive tone, as aggressive as it can be and help your car produce the most power possible without any exhaust restrictions.Learn More

Kooks 3" x 3" Stainless Steel Race Off-Road Race Only X-Pipe. 2007-2010 Shelby GT500. - 11323120 (Kooks Headers to 3" Catbacks ONLY)

$1,160.45

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Kooks Shelby GT500 3" High Flow Off Road X Pipe bolts to aftermarket cat-backs that use 3" diameter tubing at the factory connection point. The Kooks Off Road X Pipe will give your exhaust that VERY aggressive tone, as aggressive as it can be and help your car produce the most power possible without any exhaust restrictions.Learn More

Kooks 3" x 2-3/4"(OEM) SS GREEN Catted H-Pipe. 2011-2014 Shelby GT500. - 11423600

$2,004.33

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Kooks Shelby GT500 3" High Flow Catted H Pipe bolts to all cat-backs that use factory 2-3/4" diameter tubing at the factory connection point. The Kooks Catted H Pipe feature Kooks high quality, high flow catalytic converters that can tame even the most aggressive cat-back without impeding exhaust flow. Learn More

Kooks 3" x 2-3/4"(OEM) SS GREEN Catted X-Pipe. 2011-2014 Shelby GT500. - 11423300

$1,903.42

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Kooks Shelby GT500 3" High Flow Catted X Pipe bolts to all cat-backs that use factory 2-3/4" diameter tubing at the factory connection point. The Kooks Catted X Pipe feature Kooks high quality, high flow catalytic converters that can tame even the most aggressive cat-back without impeding exhaust flow. Learn More

Kooks 3" x 2-3/4"(OEM) SS Off-Road Race Only H-Pipe. 2011-2014 Shelby GT500. - 11423400

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$1,194.33

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3" Stainless Steel Off Road H-Pipe
2 3/4" Outlet For Use With Factory Size Cat Back Exhaust
Must Be Used With Kooks Long Tube Headers
These products are not legal for sale, installation, or use on licensed vehicle in the state of California. And they do NOT meet CARB complianceLearn More

Kooks 3" x 3" Race SS Off-Road Race Only H-Pipe. 2007-2010 Shelby GT500. - 11323420 (For Kooks Headers to 3" Catbacks Only)

$1,262.12

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3" x 3" Non-Catted Stainless H-Pipe. 2007-2014 Ford Shelby GT500 5.4L/5.4L 4V. Must be used with Kooks Headers. 3" OUTLET DOES NOT CONNECT TO OEM EXHAUST.Learn More

Kooks 1-7/8" Header and Green Connection Kit (2007-2010 Shelby GT500 5.4L) - 1132H460

$3,587.40

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Header and Connection Kit. 2007-2010 Ford Shelby GT500 5.4L 4V. Includes 1-7/8" x 3" Stainless Steel Long Tube Headers & 3" x 2-1/2" GREEN Catted H-Pipe. Kooks Headers and Exhaust has been the leader in the High Performance Exhaust Industry for over 50 Years! Since 1962, Kooks takes pride in offering the best Headers and complete exhaust systems for your street, race and off-road applications. We have won hundreds of championships and set countless records in the NHRA, IHRA, NMCA, NMRA, NASCAR, NASA, SCCA and many other racing organizations. Now with three generations of family leadership, we are proud to say that all of our products are handcrafted here in the USA and we are proud to still be independently owned and operated. And don't forget, "Get Kookin with KOOKS!" Manufactured In The USA. Kooks Uses T304 Aircraft Quality Stainless Steel. Kooks Products are Backed by a Limited Lifetime Warranty To the Original Purchaser. Kooks Products Are Dyno And Race Tested and Designed For Maximum Power.Learn More

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