aftermarket exhaust header -- worth it?
I have been thinking about replacing my exhaust header and catback, mainly for theatrical effect, though a few extra horses never hurts.
I'm just wondering if an aftermarket header is worth it when you consider that the stock header does such a great job of protecting everything in the engine bay from heat. Are there any risks when running an aftermarket header with a stock cat? Mike |
From what i've heard, it's not really worth it...but if you have money burning a hole in your pocket, go for it!
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Racing Beat claims that their header produced a peak horsepower improvement of over 4 HP. There are no risks with running a header with the stock cat.
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Originally Posted by invasion08
(Post 3581779)
Racing Beat claims that their header produced a peak horsepower improvement of over 4 HP. There are no risks with running a header with the stock cat.
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True, I would personally replace the stock cat with a high flow cat, since i want to stay emissions legal here in nj. I was just answering the question the OP asked
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What about heat from the header? Anyone done any measurements?
The aftermarket ones I see are all stainless steel while the factory one is some sort of double steel tubing. What's the best bang-for-the-buck high flow cat? |
RP Supercat its the best in price for what you get IMHO.
Originally Posted by BigMikeATL
(Post 3581887)
What about heat from the header? Anyone done any measurements?
The aftermarket ones I see are all stainless steel while the factory one is some sort of double steel tubing. What's the best bang-for-the-buck high flow cat? |
The oem exhaust manifold is made of cast iron. There is no need to worry about heat coming from the racing beat header. If it was a problem racing beat would have done something about it. They do a lot of testing before the final product goes into production.
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headers wont give you peak hp, but they give you mid range gains in torque and hp.
Combined with tuning, (for a auto) I saw a improvement at 140kmph from 52kwrw to near 88kwrw that was a 3rd gear pull. You can see the dyno on the auto in my post there. Mind you i got a hi flow cat put in at same time. Regards Jason |
i run a header that i had ceramic coated. i cant say i see gains but i got some sound and cooler around the motor. if any gains are there its more mid range power. and like another said a good tune will help too
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