ISR Performance High Flow Cat - Nissan 350Z/ Infiniti G35 Non HR 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 for 07 350Z with HR engines please use IS-HFC-Z34 /370Z ** All ISR Performance Products are Designed for Off Road Use Only ** What’s in the Box:

• 2x Stainless Steel high flow cats
• 2x 2 bolt exhaust gaskets
• 2x 3 bolt exhaust gaskets
• 2x o2 bung extension pipes