ISR Performance 2003-2006 Nissan 350Z DE High Flow Cat
ISR Performance High Flow Cat – Nissan 350Z Non HR ISR Performance high flow cats are custom made utilizing 300 cell spun Metallic substrate to be […]
ISR Performance High Flow Cat – Nissan 350Z 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 bolts 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 Nissan 350Z DE engines
** 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 sensor extension pipe
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$900.00
FREQUENTLY ASKED QUESTIONS
If it's in stock and ready to roll, your order usually hits the road within 1–3 business days.
For made-to-order or specialty items (like carbon fiber parts or custom builds), the turnaround can take up to 8 weeks — perfection takes time.
Either way, we'll keep you updated so you know exactly when your parts are leaving the pit lane.
Absolutely! Once your order ships, you'll receive an email with a tracking link so you can follow its journey from our shop to your doorstep.
If your order ships via freight, you'll get a separate email with a direct link to the carrier's tracking page — easy and stress-free.
Things happen on the road — even to boxes. If your order arrives damaged, snap a few clear photos of the box and product and send them our way right away.
If your shipment is lost, just email or call us — we'll help track it down and guide you through the next steps to make it right.
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