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Old Oct 15, 2024 | 01:12 PM
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Default supercharger/headers

i will be supercharging my car soon and adding a cam and headers. should i go with a catted header system or non catted
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Old Oct 15, 2024 | 04:03 PM
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I would say catted but I'm an eco-friendly. Also I hate the smell of raw exhaust cars, the modern aftermarket cats work well and are also not expensive or heavy, you barely lose any power.

Only time no cats make any sense is 100% race car.
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Old Oct 15, 2024 | 04:52 PM
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with the hi flow cats availalbe, no reason not to. I'm running hi flow cats, headers, and z06 ti exhaust with my AA supercharger, and getting 530 hp at the wheels. really no reason not to.
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Old Oct 15, 2024 | 06:34 PM
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Def go with high-flow cats.
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Old Oct 16, 2024 | 12:16 AM
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I would recommend going with a catted system. Really no loss of power to speak of with the cats.
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Old Oct 16, 2024 | 11:58 AM
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I have American Racing Headers on mine with their high flow cat system. never had a problem and I'm supercharged.
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Old Oct 16, 2024 | 04:41 PM
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Originally Posted by Vetteman Jack
I would recommend going with a catted system. Really no loss of power to speak of with the cats.
+1. High flow cats have negligible effect on power and also help with resale value.
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Old Oct 16, 2024 | 06:32 PM
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If you are certain you are going with forced induction, go with the bigger diameter tubes. That's what I did with mine incase I do forced induction one day. You are going to be jamming more fuel in there, likely a lopey cam, and when there is more raw fuel squeaking by at idle, it's going to smell up your car and your clothes.

Go with the high flow cats.
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Old Oct 16, 2024 | 07:03 PM
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I vote Catted xpipe

as far as a supercharger cam, I would do a lower lift cam, something in the .550 range to save the valvetrain. You will still be able to bring her up to 6400-6500 RPM, which is plenty for the street. Cam plus blower plus headers, I’m thinking around 575-600 at the wheels if you have a 6m.

street tires might be useless through 1st and 2nd gear, others can probably chime in on that one.

Bottom end is probably on borrowed time with 600wheel. Good luck. Post up some results.
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Old Oct 17, 2024 | 01:27 PM
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Originally Posted by JMG2
with the hi flow cats availalbe, no reason not to. I'm running hi flow cats, headers, and z06 ti exhaust with my AA supercharger, and getting 530 hp at the wheels. really no reason not to.
I just put a TI axle back on my car. With long tubes and cats, does it droan at all?
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Old Oct 17, 2024 | 01:34 PM
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will egr fittings on the headers effect the supercharger or anything related?
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Old Oct 18, 2024 | 08:40 AM
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Originally Posted by VETTEYOG
I just put a TI axle back on my car. With long tubes and cats, does it droan at all?
No drone. I have 1-7/8 from LG+high flow cats+z06 TI back.

Last edited by xlst; Oct 18, 2024 at 08:41 AM. Reason: quote
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