- Performance Parts
- Exhaust
- Cats & Parts
Product Description
Berk High Flow Catalytic Converters are fully constructed of stainless steel piping with a high flowing metallic substrate. spun core. The Stainless Steel cores are high heat resistant and offer excellent flow characteristics.
Berk High Flow Catalytic Converters are EPA approved and 49 state legal.
Each set includes:
- (1) Set of VQ35DE High Flow Catalytic Converters
- (10) Bolts, Nuts and Washers
- (2) 2 Bolt Rear Exhaust Gaskets
We recommend reusing the factory 3 Bolt Header Gasket or purchase new HERE.
Fits:
- 2003-2006 350Z
- 2003-2006 G35 Sedan
- 2003-2007 G35 Coupe
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.
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OEM 350Z / G35 Exhaust Gasket (Manifold to Cat)
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$16.29
Z1 350Z / G35 VQ35DE Plenum Spacer
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$199.99
Z1 Standard Stainless Steel Y-Pipe
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$349.99
Z1 350Z / G35 Performance Sway Bar Set
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$449.99
Z1 Replacement Test Pipe Hardware Kit
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$29.99
Z1 Motorsports 350Z / G35 Oil Cooler Kit
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$399.99
370Z / G37 / G35 High Flow Metallic Catalytic Converters
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$534.99
Kinetix 370Z / G37 High Flow Cats
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$479.99
Q50 / Q60 VR30DDTT 3.0t Race Cats
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$999.99
350Z High Flow Metallic Catalytic Converters (HR Models)
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$534.99
Fast Intentions 370Z / G37 Resonated High Flow Cats
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$810
Thunderbolt Universal Weld-In High Flow Catalytic Converter
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$139.99
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Frederick
April 3, 2024
Easy installation. New hardware came with item. Sounds more clean. Feels like my torque went up.
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Rainier
December 5, 2023
Great quality cats and super fast shipping to Australia! From the welds to the packaging and included hardware. Everything just lined up and made it easy for a DIY installation. I noticed that it changed the note of my exhaust (HKS Hi Power) a little bit by giving it a bit more grumble which I liked. Performance wise, I can't really tell yet but the butt dyno tells me that it does feel somewhat more responsive.
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August
August 27, 2023
It fits perfectly and I notice a performance difference
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Roman
February 26, 2023
Works as expected.
Perfect fit.
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Russell
April 29, 2022
You'll pass emissions with these for several years but they degrade over time and no matter what you do, they'll start to throw a cat efficiency code. Otherwise, decent pieces.
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Jim
January 14, 2022
Nice exterior finish work, and massive internal diameter, but you WILL pop a 1273 or 1283 code. This can be minimized by installing an O2 extender, but it will not eliminate the issue. ALSO, the right cat rattled from day one. The honeycomb substrate will ultimately detach on HFCs, but I had not anticipated they would be defective from day one. Interestingly, I see that Z1 has redesigned them, and I bought the end of their first batch. Coincidence? I think not. Regardless, they work well, and I have (almost) gotten used to the rattle between 4200-4700RPM.
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Roberto
July 26, 2021
Once you remove the OEM one and put these trumpets on. Power is released and you get a beautiful Symphony. Thanks z1.
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Brian
May 12, 2021
Work great, sound amazing
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Carmen
April 29, 2021
Had them for a month. I believe my cats overheated & I need to buy another set. Car sounds old
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William
March 26, 2021
Awesome product!! These were purchased and installed with my Z1 HFC. Awesome Sound and Breathability!!
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Luke
March 26, 2021
Quality and fit is faultless. Supplied with 4 gaskets not just the 2 pictured. Unfortunately my EML light came on after a few days of fitting. Aside from this I am very happy.
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Graham
March 25, 2021
Purchased these with high hopes and for 6 months they delivered, however with less than 6,000 miles on them a weld cracked and I have been left with a P2A03 code that cannot be remedied as Z1 will not assist in any type of exchange. Would not recommend this product.
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Hector
March 6, 2021
Works as intended. Passed emissions test. Only complaint is that the image depicts one set of gaskets but actually comes with all four. So I purchased the other set and now, I have extra gaskets. Otherwise, very pleased with the product.
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Daan
February 10, 2021
Awesome! Just what i was looking for and the installation was really easy, fits perfectly.
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Carter
February 9, 2021
Amazing gave my car a way deeper tone and I love it
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Michael
February 9, 2021
Provide a great alternative to OEM Cats, but check to make sure that your vehicle will still pass emissions testing.
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Rondolph
February 8, 2021
MORE POWER BABY!! Exhaust sounding more louder and gains of at least 5hp.
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Ian
November 27, 2020
Purchased these to replace my ART pipes to pass emissions and was eliminate some of the foul odors resulting from said test pipes. Works as promised and fit no problem. My car had previously a CEL from the test pipes and after installation and ecu reset, the CEL came back even after the HFC's were installed. Not sure if the HFC's are to blame for that yet so I'll refrain from speculating. Overall, excellent quality product for an excellent price, would highly recommend.
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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.
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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.
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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 .
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