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Old 04-06-2022, 04:47 PM   #1
JP374
 
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High flow cats and boost

Hi guys, so I have ARH HFC’s and wondering if I’m gonna have any issues with boost? 800-900 whp range. I don’t want the fumey smell in car but have seen where guys have had em fail and blow the engine. Any suggestions?

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Old 04-06-2022, 05:50 PM   #2
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Originally Posted by JP374 View Post
Hi guys, so I have ARH HFC’s and wondering if I’m gonna have any issues with boost? 800-900 whp range. I don’t want the fumey smell in car but have seen where guys have had em fail and blow the engine. Any suggestions?

Thanks
GESI Gen2 cats only way to go at that, or a higher, power level.
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Old 04-06-2022, 11:20 PM   #3
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I can't find any of the GESI GEN 1 "UHO" or GEN 2 cats anywhere, the only ones I can find are the "standard" no name regular, non-EPA GESI cats, which don't even have a power rating on them.
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Old 04-07-2022, 06:27 AM   #4
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I can't find any of the GESI GEN 1 "UHO" or GEN 2 cats anywhere, the only ones I can find are the "standard" no name regular, non-EPA GESI cats, which don't even have a power rating on them.
I believe CSP sells the Gen2 ones.
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Old 04-07-2022, 07:50 AM   #5
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GESI Gen2 cats only way to go at that, or a higher, power level.
Ok, that’s what I was looking at. You have any experience with them? I’m debating going catless but don’t want the fumes etc.

Thanks
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Old 04-07-2022, 08:46 AM   #6
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Ok, that’s what I was looking at. You have any experience with them? I’m debating going catless but don’t want the fumes etc.

Thanks
@Camaro1973 has been running them on his 850+whp ZL1 without issues. He had different cats prior and they failed.
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Old 04-07-2022, 09:25 AM   #7
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@Camaro1973 has been running them on his 850+whp ZL1 without issues. He had different cats prior and they failed.
Ok, thx King.

Those things aren’t cheap I know that lol. I was looking at the Gesi non epa ones, they say there rated for 500hp each. Those ones are alot cheaper, just don’t know if they will hold up.

I may just got catless and add a resonator or something idk.
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Old 04-07-2022, 09:32 AM   #8
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Cheap and modding Gen 5 powered vehicles don't go hand in hand. If you want cheap power LS 5.3 swap a fox body. lol
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Old 04-07-2022, 09:39 AM   #9
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Cheap and modding Gen 5 powered vehicles don't go hand in hand. If you want cheap power LS 5.3 swap a fox body. lol
Lmao I heard that!!!
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Old 04-07-2022, 05:24 PM   #10
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Cheap and modding Gen 5 powered vehicles don't go hand in hand. If you want cheap power LS 5.3 swap a fox body. lol
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Old 04-07-2022, 06:38 PM   #11
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Cheap and modding Gen 5 powered vehicles don't go hand in hand. If you want cheap power LS 5.3 swap a fox body. lol
false. have you priced a fox body lately? haha
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Old 04-07-2022, 06:48 PM   #12
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false. have you priced a fox body lately? haha
I was looking for a third Gen lately. Figured I could find one cheap for a good intro car into HDPE. Kinda miss my old 92z too lol. I was wrong. Impossible to find and folks want a fortune for them. Blah
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Old 04-07-2022, 07:27 PM   #13
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false. have you priced a fox body lately? haha
Yeah...still cheaper then buying and modding a 6th gen.
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Old 04-07-2022, 07:56 PM   #14
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Yeah...still cheaper then buying and modding a 6th gen.
For sure! I could have bought 2 fox body rollers for what a real fuel system costs for these cars…!
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