ISR Performance High Flow Cat Pipes Nissan 370z Z34 2009-2017 / Infini – Import Image Racing
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ISR Performance High Flow Cat Pipes Nissan 370z Z34 2009-2017 / Infiniti G37 2008-2013
ISR Performance High Flow Cat Pipes Nissan 370z Z34 2009-2017 / Infiniti G37 2008-2013
ISR Performance High Flow Cat Pipes Nissan 370z Z34 2009-2017 / Infiniti G37 2008-2013
ISR Performance High Flow Cat Pipes Nissan 370z Z34 2009-2017 / Infiniti G37 2008-2013
ISR Performance High Flow Cat Pipes Nissan 370z Z34 2009-2017 / Infiniti G37 2008-2013
ISR Performance High Flow Cat Pipes Nissan 370z Z34 2009-2017 / Infiniti G37 2008-2013

ISR Performance High Flow Cat Pipes Nissan 370z Z34 2009-2017 / Infiniti G37 2008-2013

Rated 4.6 out of 5
Based on 23 reviews
SKU: isrIS-HFC-Z34
Availability: Out Of Stock
Product Type: Exhaust Cat Pipes
$427.50
$475.00
$427.50
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Fitment Information:

2007-2008 Nissan 350z VQ35HR equipped

2009-2020 Nissan 370Z

2008-2013 Infiniti G37 

Note: Compatible with vehicles that have the OEM HR/VHR headers. These will not fit DE style shorty header swaps. This will not fit convertibles

ISR Performance high flow cats are custom made utilizing 300 cell spun Metallic substrate to be less restrictive than stock, Letting you gain power while still converting harmful exhaust gasses, ISR HFC are Fully TIG welded with true mandrel bends throughout. ISR Performance HFC bolt up to factory or aftermarket exhaust (as long as the aftermarket exhaust is built from OEM specs). ISR HFC also retains the factory Oxygen sensor location and also adds a more aggressive Exhaust tone.

What’s in the Box:

  • 2x Stainless Steel high flow cats
  • 2x 2 bolt exhaust gaskets
  • 2x 3 bolt exhaust gaskets
  • 2x o2 extension pipes
  • 10x Hardware (Bolts and Nuts)



average rating 4.6 out of 5
Based on 23 reviews
  • 5 Stars
    20 Reviews
  • 4 Stars
    0 Reviews
  • 3 Stars
    1 Review
  • 2 Stars
    1 Review
  • 1 Star
    1 Review
83% of reviewers would recommend this product to a friend
Customer photos and videos
Review posted
Reviewed by Timothy S.
Verified Buyer
Rated 5 out of 5

Amazing set of cats!

These are the best high flow cats out there for the VHR platform, perfect fitment and sound quality is amazing.

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Review posted
Reviewed by Jesus Z.
Verified Buyer
Rated 5 out of 5

Bought for 2020 370Z.

Overall, happy with purchase I received very fast. The high flow cats made my car sound beautiful. I combined this with my Tomei exhaust with ISR Y pipe. It sounds amazing.

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Review posted
Reviewed by Semaj
Rated 3 out of 5

3 Stars

Good but made the check engine light come on.

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Review posted
Reviewed by Joshua
Rated 1 out of 5

1 Star

Bought them no longer than 3 months ago put them on with brand new sensors and the cats went bad in 3 months later🤦🏻

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Reviewed by John G.
Verified Buyer
Rated 5 out of 5

Quality product.

Product was delivered on time. Appeared to be good quality.

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Reviewed by Austyn M.
Verified Buyer
Rated 5 out of 5

LOVE THEM

Easy installation sound fantastic

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Review posted
Reviewed by joseph
Rated 2 out of 5

2 Stars

They don’t last that long before they start rattling

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Review posted
Reviewed by Cody
Rated 5 out of 5

5 Stars

One of the best high flow cats

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Review posted
Reviewed by Wilfredo G.
Verified Buyer
Rated 5 out of 5

G37 high flow cat

Great fit and easy to install, sounds great, this ISR high flow cat is a quality product.

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Review posted
Reviewed by Bull
Verified Buyer
Rated 5 out of 5

Beautiful pipes with great welds.

Installed these on my 2011 370Z. I had some cheap resonated test pipes that I had Maganaflow Universal ceramic cats welded on that were okay, but these ISR pipes look so much better and the cats definitely flow better than the Magmaflow units. You can literally see through these where the others have more cells.The car is a bit louder when accelerating, but it has a nice sound at idle and moderate driving. The hardware was awesome and I was impressed with the gaskets. Most of the time gaskets that come with other stuff is crappy.

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