Exhaust› Catalytic Converters

Kinetix Racing

High Flow Catalytic Converters

$639.99

SKU: KX-HR-HFC

In Stock
In Stock
Ships by Sep 12
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Kinetix Racing High Flow Cats are designed as a direct replacement for the factory catalytic converters. They feature a spun cat design with full stainless steel construction for increased strength and flow. These converters are TIG welded with true mandrel bends and 3/8 inch stainless flanges.

The high flow design helps to eliminate the factory exhaust system's choke point, while maintaining legal emissions levels. They retain the factory oxygen sensor location and are designed not to trigger a check engine light. The product comes with gaskets and hardware for installation.
Show original supplier description
The Kinetix Racing High Flow Cats (KX-HR-HFC) are engineered to replace the restrictive factory catalytic converters in your Nissan or Infiniti VQ35HR/VQ37VHR engine. These high-flow converters utilize a spun catalytic core encased in full stainless steel, offering superior durability and significantly improved exhaust flow compared to stock units. The construction features TIG-welded seams, true mandrel bends, and 3/8-inch stainless steel flanges, ensuring a robust and precise fit.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandKinetix Racing
Part NumberKX-HR-HFC
CategoryExhaust

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Returns & Fitment

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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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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