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Cat-back exhuast and short ram intake- Increasing hp?

Old 11-Apr-2008, 11:48 AM
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H.S
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Cat-back exhuast and short ram intake- Increasing hp?

hey I might be buying a 96 civic hatchback dx 1.6 L . Looking at the car's stock specs, it has a bout 106 hp. I want to add a bit more horse power to it. My first idea is to add a short ram air intake to it and also a cat-back exhaust. Can anyone tell me how much hp i will be adding to the car with the installment of an air intake and a cat-back exhaust. if its possible please give me seperate numeric hp values for an intake and a cat-back exhaust , and not a total amount of hp.

thanks
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Old 12-Apr-2008, 04:48 PM
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You're most likely looking at less than 10% to whatever you may have now. I could feel a slight increase with my Injen CAI, but nothing to get crazy about.
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Old 12-Apr-2008, 09:11 PM
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You'll notice more of a difference from the exhaust then you will from an intake. The most restrictive part of that exhaust system is the exhaust manifold cat converter combo.
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Old 13-Apr-2008, 12:13 AM
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grab your self a y8 intake manifold and a y8 exhaust manifold

about $100 at the junkyard it'll make a big differance in power.

my car feels like it has vtec when it hits about 4500 rpm it's funny as hell

the y8 exhaust maniold is just like an ebay 4-2-1 or any aftermarket one just cheaper and oem quality!
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Old 13-Apr-2008, 12:30 AM
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you need to put a cat. tho after you change that stuff too.
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Old 15-Apr-2008, 12:28 AM
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cat back will not do very much for you, you need to do Header back with highflow cat for to gain a bit of power
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Old 15-Apr-2008, 08:06 AM
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Just a catback and short ram will maybe give you 3 to 5 whp if that.
A full 2.25" with a intake and header would be your best bet at getting a little more whp. That combo should take you anywhere around 110 to 115 whp.
Your car stock only has 106hp to the crank, factor in 10% loss. So if you get anything above 110whp I'd be happy if I was you.
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Old 15-Apr-2008, 10:43 AM
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Originally Posted by T-MacK
Just a catback and short ram will maybe give you 3 to 5 whp if that.
A full 2.25" with a intake and header would be your best bet at getting a little more whp. That combo should take you anywhere around 110 to 115 whp.
Your car stock only has 106hp to the crank, factor in 10% loss. So if you get anything above 110whp I'd be happy if I was you.
Thats being VERY optimistic...lol.
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Old 15-Apr-2008, 11:01 AM
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Originally Posted by VTEC_Thunder
Thats being VERY optimistic...lol.
I know that my old combo from back in the day will net more then that.
B7 engine
A6 camshaft
Si tranny
Aem cai, e-gay header, 2.25"exhaust
0.40" milled head = 133whp
That was quite a few years a'go.


Most Sohc's with just I/H/E will net you any where between 110 to 115 whp.

Last edited by T-MacK; 15-Apr-2008 at 08:56 PM.
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Old 15-Apr-2008, 02:41 PM
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Originally Posted by T-MacK
I know that my old combo from back in the day will net more then that.
B7 engine
A6 camshaft
Si tranny
Aem cai, e-gay header, 2.25"exhaust
0.40" milled head = 133whp
That was quite a few years a'go.


Most Sohc's with just I/H/E will net you any where between 110 to 115 hp.

You have to watch what you say. Sometimes you're saying 'whp' and other times you're saying 'hp'. There is a big difference. One is at the flywheel and one is at the wheels.
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Old 15-Apr-2008, 08:55 PM
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Originally Posted by VTEC_Thunder
You have to watch what you say. Sometimes you're saying 'whp' and other times you're saying 'hp'. There is a big difference. One is at the flywheel and one is at the wheels.
Seriously Idid'nt know the difference...lol.
There I fixed it for you. And I only said it once which was a type-o.
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Old 15-Apr-2008, 11:56 PM
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Sorry, I wasn't implying you didn't know the difference. I only meant that I wasn't sure if you were talking about crank hp or whp. Thats all.
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Old 28-Apr-2008, 11:56 AM
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Thanks a lot guys, ill most likely put a short ram intake in for now. then look forward to a cat exhaust. i also like the sound of an intake so lol. i guess ill start with an intake.
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Old 19-May-2008, 03:39 AM
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If you want i got a 99-00 d16y8 exhaust manifold cause they are more tubular than the 96-98 d16y8. Also i got a new in the box Kamikaze header but its meant more for supercharged SOHC. Let me know
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Old 19-May-2008, 10:23 PM
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Originally Posted by Christof
cat back will not do very much for you, you need to do Header back with highflow cat for to gain a bit of power
i dont mean to jack your thread, im just curious to know what is a good header?, b/c ive just finished doing my exhaust from the cat back with a
2.25" exhaust
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