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Exhaust› Catalytic Converters

ISR

High Flow Cat 300-Cell

$522.50 $496.38 Save $26.12

SKU: IS-HFC-Z33

In Stock
In Stock
Ships by Aug 3
Free Shipping over $100
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The ISR Performance High Flow Cat is engineered to enhance the performance of your Nissan 350Z (Z33) equipped with the VQ35DE engine. This component is designed to be less restrictive than the factory catalytic converter, utilizing a 300-cell spun metallic substrate to facilitate improved exhaust flow and potentially increase power output. The construction features fully TIG-welded seams and true mandrel bends throughout, ensuring optimal performance and durability.

Fitment

Fitment Guaranteed

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on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

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Specifications

BrandISR
Part NumberIS-HFC-Z33
CategoryExhaust

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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