They’re smooth, loud and the start up sounds amazing! It’s an amazing product especially for the price, as for the install it was easy as plug and play!
- Instant discount: $47.50 = $427.50
IIR Pay Customers get $21.38 in points
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:
WARNING: Cancer and Reproductive Harm. (http://www.p65warnings.ca.gov)