Kinetix Racing High Flow Cats | Multiple Fitments (KX-HR-HFC)
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Kinetix Racing High Flow Cats
These pipes ship 4-6 business days after order placement
The factory catalytic converters are well known as the biggest "choke point" in the factory exhaust system. These high flow stainless spun catalytic converters blow away the stock converter flow rates while still maintaining legal emissions levels.
Constructed with stainless tubing and 3/8" stainless flanges. Fully TIG welded and true mandrel bends used throughout. These converters will bolt up to any header (factory or aftermarket) and any exhaust (factory or aftermarket). These pipes also retain the factory Oxygen sensor location and WILL NOT THROW A CHECK ENGINE LIGHT!!
Expect great performance gains from these converters as they have dyno'd between 7-9 hp at the wheels on factory 350Z's. They only add a slightly more aggressive exhaust note and do not have the pesky "raspiness" between 3-4k rpm that is seen with straight through test pipes.
Please check local laws regarding catalytic converters. Our cats are 49 state legal and do not have a CARB number associated with them.
- "Spun" cat design has a full stainless construction for much higher strength and flow
- More clearance for easier installation
- THE most affordable FULL stainless constructed SMOG passable cat out there!!
- 2009-up 370Z
- 2007-2008 350Z
- 2008-up G37 Coupe
- 2007-up G35 Sedan
What's In The Box?
- (2) High Flow Cats
- Manufacturer Standard Warranty
THIS PART MAY NOT BE USED IN VEHICLES USING PUBLIC HIGHWAYS. THIS PART IS FOR USE ONLY IN OFF ROAD COMPETITION RACING VEHICLES. ANY USE OF THIS PART IN ANY OTHER VEHICLE OR FOR ANY OTHER PURPOSE MAY SUBJECT YOU TO FINES AND PENALTIES FOR VIOLATION OF FEDERAL AND/OR STATE LAW, WILL VOID ANY WARRANTY FROM MODERN AUTOMOTIVE PERFORMANCE AND MAY VOID YOUR VEHICLE'S WARRANTY.
It is your responsibility to comply with all applicable federal, state and/or local laws relating to the use of this part. Modern Automotive Performance hereby makes no representation or warranty as to the compliance of this part with federal, state and/or laws and disclaims any liability resulting from the failure to use this part in compliance with all applicable federal, state and/or local laws.
I'm very impressed with this HTC. It installed very easy in about 30 minutes. That's with aftermarket exhaust. I had straight test pipes before and they had an annoying rasp between 3-4 rpm. With these it's gone. Also no longer smell any exhaust fumes. No check engine lights. Lastly I got the car dyno tuned on uprev with these new HFC and a stillen cold air intake. I made more HP and torque with this setup. Dyno graph attached.
I might have bad luck but I did not notice that the welds were not welded all the way around. They stopped 8/10 of the way and thats where my exhaust leak started. Gaskets were not good either ...MAKE SURE YOU USE NEW OEM INFINITI GASKETS