This product is for Racing Competition only and is not legal for use in highway or street vehicles or other non-racing competition off-road vehicles.
Purchasing this product requires you to sign our Vehicle Compliance Waiver here.
Off-Road Exhaust System with Kooks Mufflers and X-Pipe but no catalytic converters.Kooks products are 100 Percent Manufactured in the USA. Kooks Headers and Exhaust make the most power in the industry, specifically designed for maximum power. Kooks products are made of T-304 Air Craft Quality Steel and come with a limited lifetime warranty to the original purchaser. Every Kooks product is dyno and race tested. Kooks is 3 generations of being family owned and operated. They deliver a designed, engineered and manufactured component of over fifty years of dedication and passion into the craftsmanship of what they do.Features:
- Off-Road exhaust systems do NOT contain catalytic converters.
- 2.5" Stainless steel exhaust system with X-Pipe and Kooks Mufflers.
- Exits at factory location in front of passanger rear tire
- For Use With Kooks Headers
- Ford F-150 V8 1999-2004 5.4L 2V
Kooks Headers and Exhaust products are covered under our limited lifetime warranty. This warranty is limited to the repair or replacement of the product if the problem is due to faulty materials or workmanship. The warranty does not cover any coatings, polishing, painting, etc. and will NOT cover any re-coatings, re-polishing, or re-paintings to the headers.
Kooks will not warranty any exhaust product that has been improperly installed, crashed, welded, or modified (coatings, header wraps, etc) in any way. Kooks will not cover damage to any related components. Neither the seller, nor Kooks, will be responsible or liable for any loss, damage or injury resulting from the direct or indirect use of this product or inability by the purchaser to determine proper use or application of this product. Kooks Headers and Exhaust products are built for off-highway use only and disclaim all liability for products used in racing activities and/or applications other than those specifically recommended in the current catalog.
Claimed defective products must be returned with a Returned Merchandise Authorization (RMA) number to Kooks at the buyer’s expense. Products returned without an RMA number are subject to refusal. The returned product will need to include your name, address, daytime phone number, RMA number, and a copy of your sales receipt if available. Warranty will not be considered without a copy of your sales receipt. Upon receipt, Kooks Headers and Exhaust will, at its option, repair or replace the defective item.
Kooks Headers and Exhaust Mufflers come with a 2 year limited replacement warranty. The muffler in question will need to have an Returned Merchandise Authorization (RMA) number and follow the same warranty return policy as stated above. Once the product is received by Kooks, it will be evaluated to determine the reason for failure. If cause of failure is determined to be impact damage, the claim will be denied. If it is a defective part that caused the failure, then the said muffler will be replaced and shipped back to the consumer at no charge. If it is determined to be an issue other than part failure, then we can offer a replacement muffler at a discounted rate.
Vehicles equipped with a factory supercharger or turbocharger will only receive a warranty on Kooks Catalysts if they have the GREENCATS. There will be no warranty on our standard high flow catalyst if the vehicle comes equipped with a factory forced induction system. Furthermore, we recommend upgrading to the GREENCATS if your application will be producing more than 600 horsepower. GREENCATS can be installed on any of the Kooks exhaust systems.
Example: A Ford Mustang GT500, which comes equipped with a supercharger from Ford, will only receive a Kooks-backed warranty if they are running the GREENCATS.
Kooks Headers and Exhaust EPA-Certified GREENCATS come with a 2-year limited replacement warranty. The standard High Flow Race Catalyst come with a 1-year limited replacement warranty. The catalyst in question will need to have a Returned Merchandise Authorization (RMA) number and follow the same warranty return policy as stated above. Once the product is received by Kooks, it will be evaluated to determine the reason for failure. If it is a defective part that caused the failure, then the said catalyst will be replaced and shipped back to the consumer at no charge. If it is determined to be an issue other than part failure, then we can offer a cat replacement program at a discounted rate.