Exhaust› Catalytic Converters

ISR

High Flow Cat

$450.00

SKU: IS-HFC-Z34

In Stock
In Stock
Ships by Aug 3
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30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The ISR Performance High Flow Cats (HFC) are a direct replacement upgrade for your Nissan 370Z or Infiniti G37. Constructed from durable stainless steel, these catalytic converters are designed for 100% accuracy of fit, ensuring a seamless installation. Utilizing a Magnaflow 300-cell spun metallic substrate, these high flow cats are engineered to be less restrictive than the factory units. This design promotes improved exhaust flow, which can contribute to enhanced engine performance. They also retain the factory O2 sensor locations for ease of integration. Fitment includes 2007-2008 Nissan 350Z models equipped with the VQ35HR engine, 2009-2020 Nissan 370Z, and 2008-2013 Infiniti G37. Note that this product is for use in competition vehicles only and may not be legal for registration, licensing, or use on public roads.

MIA's Description

It features a 300-cell spun metallic substrate for improved flow.

Fitment

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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-Z34
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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