ISR Performance high flow cats are custom made utilizing 300 cell spun Metallic substrate to be less restrictive than stock, Letting you gain power while still converting harmful exhaust gasses, ISR HFC are Fully TIG welded with true mandrel bends throughout. ISR Performance HFC bolt up to factory or aftermarket exhaust (as long as the aftermarket exhaust is built from OEM specs). ISR HFC also retains the factory Oxygen sensor location and also adds a more aggressive Exhaust tone.
These HFC's are for 350Z DE engines. If you have a 2007+ 350Z with HR engines please use IS-HFC-Z34 /370Z. What's in the Box. Stainless Steel high flow cats.
2x 2 bolt exhaust gaskets. 2x 3 bolt exhaust gaskets.2x o2 bung extension pipes. All ISR Performance Products are Designed for Off Road Use Only. LEGAL IN CALIFORNIA ONLY FOR RACING VEHICLES WHICH MAY NEVER BE USED, OR REGISTERED OR LICENSED FOR USE, UPON A HIGHWAY.
When receiving your package, please open all of the boxes immediately to check if all the contents are inside and not damaged. If the product received is defective, a replacement will be sent as soon as possible. We will refuse any damaged or products that are not in good condition. They will inform you on how to proceed based on their policies.We will provide you instructions on how and where to return the product.