ok guys, once and for all, which high flow cat is the best? well, dont think we can get a best, but how bout a compilation of the pros and cons of the high flows. thinking of getting mine this week. =)

G35S 6MT
Technosquare ECU
350Z Springs & Struts
JWT popcharger + Z-tube
Stillen True Dual Exhaust
6-wire ground kit

 

Technosquare did a flow comparison on the flow of the cats and the test pipes. The random tech cats flowed the best out of all the cats, and the test pipes only flowed a little bit better the rt cats. You could find the chart on my350z, but I think their search function is not working. I hope this was helpful.

 

I think Kinetix is best when you consider price. As with all other high flow cats out there... remember that with the sedan there are fitment issues because of the floorboard.

--Steve

 

IMO, the Crawfords.

Lou

 

When I ordered my Crawford cats, Doug told me that there would be no fitment issues.

 

I spoke with LSD at Kinetix about the fitment and he said that they have been corrected for the floorboard issue.

 

I am cheap, I went with the Kinetix [img]/w3timages/icons/tongue.gif[/img]. I have no fitment issue with the floorboard heat shield [img]/w3timages/icons/wink.gif[/img].

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Borla exhaust, Nismo sway bar, Z duct, JWT p/c, Kinetix cats [img]/w3timages/icons/laugh.gif[/img]

 

Does anyone know off hand which of the cats are the quietest? I would like to get a pair but I don't want much more noise than stock. Anyone go to a meet and hear the differences, if any?

 

I thought TS's test was only between the RT cats and test pipes. i wasnt aware that it involved the other cats as well.
if the floorboard issue has been correct on the kinetix for the sedan, then IMO, thats the way to go for price alone. installation is a b#%#$ though. wonder how much that'd cost me.

G35S 6MT
Technosquare ECU
350Z Springs & Struts
JWT popcharger + Z-tube
Stillen True Dual Exhaust
6-wire ground kit

 

If you were to put the RT, Kinetix, and the Crawford high flow cats on a flow bench test, I'm pretty sure they would vary by small percentages. I would be more cocnerned with fitment, price, and quality. Performance wise I'm sure they are all very close to each other.

04' G35S 6MT Ivory Pearl, Willow, Premium

 

I talked to Jason At Performance Nissan today install RT Cats would be $160 or $80 more if you get Headers installedat the same time OH the Headers would cost $400 to get installed

GOT N20?
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