What does this do?
#1
What does this do?
So, I have intake, headers, exhaust on my 86 gsr, but no other performance mods. Everyone says the next step is a high flow cat. I guess I have 2 questions:
1: Does a high flow cat make you gain hp and torque? I heard it reduces horsepower cuz of loss of back pressure.
2: If a high flow cat increases horsepower, should I buy a carsound, or just go to a junkyard, buy an old cat off an integra, and gut it? Would THAT be too little back pressure?
1: Does a high flow cat make you gain hp and torque? I heard it reduces horsepower cuz of loss of back pressure.
2: If a high flow cat increases horsepower, should I buy a carsound, or just go to a junkyard, buy an old cat off an integra, and gut it? Would THAT be too little back pressure?
#2
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Do yourself and everyone around you a favor and get a high flow cat instead of gutting one or getting a test pipe. It makes more high rpm power due to letting the exhaust flow more freely, however with only a few mods you won't get too much out of one.
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Yes a gutted cat will sound like bees.
I never said a high flow cat wasn't worth it, but you'd see bigger gains with a more modified engine. With only I/H/E, you won't get too much out of one. But with cams, higher compression, FI, etc, you will get lots out of it.
I never said a high flow cat wasn't worth it, but you'd see bigger gains with a more modified engine. With only I/H/E, you won't get too much out of one. But with cams, higher compression, FI, etc, you will get lots out of it.
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