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Kooks Headers Header and High Output GREEN Catted Connection Kits are performance exhaust upgrades for a vehicle, consisting of long-tube exhaust headers and high-output, EPA-verified catalytic converters (the "GREEN Cats") integrated into a connection pipe. They are application-specific, designed for a particular vehicle model and year—and are engineered to improve engine power, torque, and sound by allowing the engine to "breathe" more easily, while still meeting emissions standards. The "GREEN" designation refers to the specific type of high performance catalytic converter with a lower 400 CPSI substrate, making it suitable for high-horsepower applications. Kits are available with 1 7/8 in. or 2 in. primary tube outside diameter. Key components and features: * Headers: These are long, mandrel-bent tubes made from 304 stainless steel that replace the restrictive factory exhaust manifolds. * High-Output GREEN Catted Connection Pipes: These are the pipes that connect to the headers and feature Kooks' Ultra High Performance GREEN Cats. * High-Output GREEN Cats: These are high-flow catalytic converters designed to reduce emissions while handling high horsepower levels. * Installation Hardware: The kit includes all necessary gaskets, clamps, and hardware, and in some cases, oxygen sensor extension harnesses, for a complete installation. * OEM Connection Point: The connection pipes are designed to bolt up to the vehicle's factory exhaust system. * Application-Specific Design: Kooks provides these kits for a variety of vehicles, such as Mustangs and Dodge Challengers, to ensure a proper fit and optimal performance
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$3,868.24
Kooks Headers race long tube headers will deliver high performance to your racer. Their full-length race headers are built from T-304 stainless steel and are available in several primary tube and collector diameters to match your application needs. Optimize scavenging and increase power with top-quality Kooks race long tube headers.
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$1,571.08
Kooks Headers shorty headers feature large diameter mandrel-bent stainless steel tubing and are great replacements for factory manifolds. Depending on the specific application, they may include catted connections to connect to OE exhaust systems without an X-pipe or H-pipe. Other models connect directly to the original equipment exhaust system. All Kooks Headers shorty headers offer improved flow and real improvements in horsepower and torque. Note: Kooks Headers mid-length headers and connection pipes may not be legal for sale, installation, or use in some areas. Check your state and local laws.
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$2,832.36
Kooks Headers offers a variety of exhaust systems designed for specific vehicles. They feature large diameter 304 stainless steel construction with smooth-flowing mandrel-bent tubing for maximum exhaust flow. Among the options are street and OEM-style replacements, or high-rpm performance and race applications. Choose from styles such as header-back, cat-back, rear axle-back, and full-length. Look over the available options and select the model designed for your vehicle. Depending on the system you order, specs/configurations may include: * One or two mufflers, or a muffler-delete system * Muffler style: wrapped perforated core, turbo, perforated tube, glasspack * Components with a natural or polished finish * Single or dual inlet/outlet * Catalytic converter (where applicable) * Intermediate pipe (where applicable) * Tailpipe; different diameters available * Round tip(s), polished or black coated, various styles Some Kooks Headers exhaust systems are offered in one of three versions: * Off-road (non-catted) for full track use with no horsepower loss and the loudest exhaust tone * With high-flow catalytic converters; recommended for street driving with little or no horsepower loss and a deeper exhaust tone * With Kooks ultra-high performance GREENCATS catalytic converters that eliminate 90 percent of "Check Engine Light" warnings; designed for naturally aspirated and forced induction engines up to 900 hp Note: Certain exhaust systems may not be legal for sale, installation, or use in certain locales. Check your state and local laws.
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$1,628.02
Kooks Headers long tube headers are heavy-duty and crack-resistant, featuring large diameter stainless steel construction (most applications) with smooth-flowing mandrel-bent tubing. They include gaskets, bolts, and oxygen sensor extensions where required. Also available as kits with connection pipes, depending on the application, Kooks long tube header kits include individual connection pipes, a Y-pipe, X-pipe, or H-pipe to connect to the exhaust system. X-pipes are used primarily for high-rpm performance and race applications. H-pipes create lower end power and are used on street cars for increased performance with a comfortable sound level. These connection pipes are offered in three versions: * Off-road (non-catted) for full track use with no horsepower loss and the loudest exhaust tone * With high-flow catalytic converters; recommended for street driving with little or no horsepower loss and a deeper exhaust tone * With Kooks ultra-high performance GREENCATS catalytic converters; designed for naturally aspirated and forced induction engines up to 900 hp, eliminates most "Check Engine Light" warnings Note: Kooks Headers long tube headers and connection pipes may not be legal for sale, installation, or use in some areas. Check your state and local laws.
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$4,615.35
Y-pipes are usually used to connect to original equipment exhaust system connection points. Kooks Headers Y-pipes are heavy-duty and crack-resistant, featuring large diameter stainless steel construction with smooth-flowing mandrel-bent tubing. Most are designed to be used with Kooks long tube headers. Kooks Headers Y-pipes are offered in three versions: * Off-road (non-catted) for full track use with no horsepower loss and the loudest exhaust tone * With high-flow catalytic converters; recommended for street driving with little or no horsepower loss and a deeper exhaust tone * With Kooks ultra-high performance GREENCATS catalytic converters; designed for naturally aspirated and forced induction engines up to 900 hp, eliminates most "Check Engine Light" warnings Note: Kooks Headers Y-pipes may not be legal for sale, installation, or use in some areas. Check your state and local laws.
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$1,869.76
Kooks Headers Race Y-pipes are usually used to connect to original equipment exhaust system connection points. Kooks Headers Race Y-pipes are heavy-duty and crack-resistant, featuring large diameter stainless steel construction with smooth-flowing mandrel-bent tubing. Most are designed to be used with Kooks long tube headers. Note: Kooks Headers Race Y-pipes may not be legal for sale, installation, or use in some areas. Check your state and local laws.
( 4 )
$1,689.76
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