350Z / G35 High Flow Metallic Catalytic Converters (DE Models), Performance OEM and Aftermarket Engineered Parts Global Leader In 300ZX 350Z 370Z G35 G37 Q50 Q60 - Z1 Motorsports
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350Z / G35 High Flow Metallic Catalytic Converters (DE Models)

starstarstarstarstar_half 4.7/5 - (6 Reviews)
Fits models: 350Z / G35 / FX35 / FX45

Product Description

These High Flow Catalytic Converters are fully constructed of Stainless Steel. Using a 100 cpsi Stainless Steel spiral wound core, they are the highest flowing bolt on converter available that is OBDII compliant. The Stainless Steel cores are high heat resistant and offer excellent flow characteristics. 

Each set includes:

  • (1) Set of VQ35DE High Flow Catalytic Converters 
  • (10) Bolts, Nuts amd Washers
  • (2) 2 Bolt Rear Exhaust Gaskets

We recommend reusing the factory 3 Bolt Header Gasket or purchase new HERE.  

Unlike many of our competitors, our cats just like our test pipes will bolt on easier with 2 factory style studs used in each of the top flanges rather than just nuts and bolts, making install a breeze.

Fit '03-06 350Z, '03-06 G35 Sedan, '03-07 G35 Coupe models equipped with the VQ35DE (Single Throttle Body) engine.

We cannot guarantee that any of the different brands of high flow catalytic converters we sell will not cause a CEL (check engine light). From our experience it is not a problem on 90% of cars.

Optional:

One roll of Z1 Heat Wrap can be included at a discount rate using the options below. Z1 Exhaust Wrap is ideal for wrapping test pipes, high flow cats, or any other radiant heat sources under hood or under the car. Includes 4 14'' stainless steel ties.

Please note:

Like many aftermarket parts, these HFCs are intended for off-road use only.  Please check with local laws when installing aftermarket parts!

 

Available Options:

Please review the product description if you are unsure about any of the options below.

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Price: $424.00
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350Z / G35 High Flow Metallic Catalytic Converters (DE Models)
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What our customers say

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starstarstarstarstar
Dean
February 10, 2020
Fits and sounds great on my 06 g35x. Gives my exhaust a deeper aggressive growl. NO CEL. Nuts on the stock cats took 2 days to get off so if u plan on diy, then give yourself a little time.
starstarstarstarstar
Desmond
August 24, 2018
I'm not sure what else to say about these other than they are the greatest damn HFCs ever, absolutely no check engine light and made my G sound like an absolute savage when I put my foot down. I get asked everywhere what type of exhaust I have to make it sound the way it does. Good ole Z1 Motorsports. Also I've had them for a while now with 0 issues, so thanks for making awesome products.
starstarstarstarstar
David
April 3, 2018
These HFC make a notable difference away from my stock cats. Sound and Performance, slight more deep tone on start up and feel the car more free flowing on highway. Great quality and lightweight. No CEL light w / my oem oxygen sensors
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Joshua
March 4, 2018
I bought these to replace the Manzo Test Pipes, because I got tired of such a strong exhaust odor. They bolted right up, with only one fitment issue, the drive side 02 sensor wiring no long can sit inside the bracket anymore but the passenger side had no issues. They are also noticeably quieter than the test pipes and theres no more crazy rasp. Overall 9/10, so far.
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Jeremy
June 18, 2017
The fit on these is perfect and thus far no cel without a tune.
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SAMI
July 14, 2012
I actually bought these for my 2005 FX35 and they fit but because my car is AWD the shop had to make the right cat a little down because of the Y pipe hitting the upper frame .....anyway I love the cats and the sound is very deep and beautiful .