What’s the best high flow cat?
#1
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What’s the best performance high flow cat?
Was looking into get a high flow cat was looking into getting either ets or mil spec hfc
Last edited by Brian Barrera; Jun 30, 2018 at 06:21 PM.
#2
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When I saw your title, I thought you are asking for the best one. And then with the ones you mentioned I think you are asking for a cheapest one.
To answer the question, the best one would be a metal cat housed in a Ti64 titanium pipe. Akrapovic used to make one, but it is now discontinued. One step down would be something like the HKS Metal Catalyzer (33005-AM003), which is a very good 150 cell metal cat housed in SUS304 stainless steel tube. There is also the Sard metal high-flow cat (5MT: 89055; 6AT: 89056), which is cheaper but supposedly also very good.
(Photo credit: https://www.evolutionm.net/forums/ev...catalyzer.html)
To answer the question, the best one would be a metal cat housed in a Ti64 titanium pipe. Akrapovic used to make one, but it is now discontinued. One step down would be something like the HKS Metal Catalyzer (33005-AM003), which is a very good 150 cell metal cat housed in SUS304 stainless steel tube. There is also the Sard metal high-flow cat (5MT: 89055; 6AT: 89056), which is cheaper but supposedly also very good.
(Photo credit: https://www.evolutionm.net/forums/ev...catalyzer.html)
Last edited by Lightsaber; Jul 6, 2018 at 10:20 AM. Reason: grammar
#5
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I don't think these ones make a difference among each other. May as well order an AMS downpipe and AMS high-flow cat together, so they arrive in one happy package.
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I was searching up and ams has 300 cell and ets is 200 cell and mil spec is 100 cell so I would assume mil spec would be the best for performance? And hopefully someone who has had ets or mil spec can answer what HP they gain for installing these
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#8
I can only speak to experience with the ETS. It has a bend in it so fits the car neatly, The O2 J bung is nice, and it has held up well over several years including salty winters.
#10
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Well, if it's a DD, it solves the issue of keeping you from being a gross polluting, cancer causing jerk. If you live in an emmisions/inspection state, it gets your car registered.
My research let me to the MILSPEC being my top choice with the only hesitation being a likely CEL without a spacer or ECU edit.
Have you ever been in traffic behind a catless car? It makes my eyes water and lungs burn..... I don't know how our grandparentsg generation dealt.
My research let me to the MILSPEC being my top choice with the only hesitation being a likely CEL without a spacer or ECU edit.
Have you ever been in traffic behind a catless car? It makes my eyes water and lungs burn..... I don't know how our grandparentsg generation dealt.
#11
In Europe we have sniffer test and i passed easily with 200cell metal core cat (MagnaFlow core), 93gas tune, 350hp. EvoX. With 100cell you cant pass with gas, with E85 its possible.
I would delete second o2 sensor and use decat. For emissiontest just put OEM cat down, or any other cheap 200+cell cat. Or just loan cat pipe from someone to pass the test.
#12
When you say "best" hfc that can mean different things... its like asking which exhaust is the best lol
Best as in performance? Weight? Price?
There technically isn't a 'best' one imo
At the end of the day, you get what you pay for.
So a $50 ebay hfc isn't going to compare with for example, an ETS hfc
Also, you can pass emissions and smog with a hfc in California, but only if that is the only mod you have on your car lol
Best as in performance? Weight? Price?
There technically isn't a 'best' one imo
At the end of the day, you get what you pay for.
So a $50 ebay hfc isn't going to compare with for example, an ETS hfc
Also, you can pass emissions and smog with a hfc in California, but only if that is the only mod you have on your car lol
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