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.

If you have a 2007+ 350Z with HR engines please use IS-HFC-Z34 /370Z

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

Legal only for use in competition vehicles which may never be registered, licensed, and/or used on public streets or highways; and also for use in other exempted vehicles.