I/H/E horse power gain

What is the average horse power gain from CAI, Headers and full catback exhaust. I got a prelude vtec all stock right now. Anyone done dyno after any of these mods.

thanks for input.

~10-20whp. A header won't net you much unless it's 4-1.

do you trust ebays I/H/E. They are soo cheap.

you get what you pay for my man

trust me...i know....
i strongly suggest NOT buying ebay headers, they are not the best quality and they are about 2 inches too long, and if your using the stock exhaust, you'll have to actually have a friend pull it back while you try to wiggle the new one in, then you'll have to get a rubber hose, slice it, and use it as padding so it doesn't rattle the shit out of your car.

also...the ebay headers do not mount onto the stock manifold's brackets and are actually braced to nothing except a brace at the bottom of the car, so i can't imagine it'll be a long time before it breaks and i have to slap my JDMs back on.

Aside from corrosion and material quality, the ebay stuff is okay. It works.

You'll notice that it's the same as any AEM intake or DC Sports Header (which, by the way, are shitty...)

Just nab a ceramic header and a standard cold air or short ram intake; you won't get any more power from having a shiny pipe or a name printed on it. They are perfectly fine at low levels. (I used to run a K&N filter on an bent pipe I bought at Home Depot... although ghetto, it works as well as my AEM pipe)

i was thinking about getting 1 of their catbacks. $180bucks!

i was thinking about getting 1 of their catbacks. $180bucks!

ebay CAI's are OK. get DC headers, and please dont spend 200$ on an ebay catback.... if anything go get a custom exhaust from a muffler shop, just make sure the piping is mendrel bent. a shitty ebay exhaust will probably leak and be even more loud an obnoxious than when you originally put it on the car... then a month later you'll have to take it off and that'd be a waste of a couple hundred bucks... when you could have added another 120 and gotten a nicer custom one that'll last.

Mandrel bending gains are pretty much minimal on a large enough pipe, but.. Don't get a performance muffler. They sound loud and shitty.

DC headers and stock Prelude headers are almost identical. Don't get it.

Mandrel bending gains are pretty much minimal on a large enough pipe, but.. Don't get a performance muffler. They sound loud and shitty.

DC headers and stock Prelude headers are almost identical. Don't get it.

* i dont know much about prelude headers... i have an integra*

i'd rather have a 2.5" exhaust with mendrel bent piping (on a lude) over a 2.75" exhaust without mendrel bent piping... imo it's worth getting the first of the two. and about the muffler, who needs one ;-). heh. get a good chambered muffler.

whats a chambered muffler. I thought performance exhaust was a good thing

I don't like performance mufflers primarily because of their sound. I don't like the sound of the EVO or N1 catbacks either, but I guess it's just opinion. They are still excellent in delivering less restriction.

So do you use a stock exhaust?

I am using a custom setup. My Magnaflow mufflers are loud... Civic-without-a-muffler loud. It's freed up quite a bit of flow, though.

You'll notice that it's the same as any AEM intake or DC Sports Header (which, by the way, are shitty...)

why are the dc sport header and aem intakes shitty, their really good brands and very good high quality products :)

They are good quality.

But arguably not worth the price. DC Sports headers, as I stated above, are nearly identical to the stock Prelude headers. Getting them is a waste of money that will give you gains that simply aren't worth it. AEM pipes have the nifty little bypass valve... otherwise I would not recommend anyone getting them at all. You can save alot of money making your own intake system that more or else functions the same way.

I don't believe in wasting time worrying about what particular intake or header to get as long as they meet your requirements. You're only going to make a little extra power trying to get the "best" part, and alot of times these "best" parts will become inadequate for your next stage and you end up having to get rid of them anyways. It's better to choose on availability and price. Or if you really really want that red pipe with the AEM logo on it, then it's up to your own personal preference.

do you have anything bad to say about the AEM V2 intake, i only ask because i want to know, i'm not trying to be a smartass or anything...

do you have anything bad to say about the AEM V2 intake, i only ask because i want to know, i'm not trying to be a smartass or anything... Stay with the regular AEM CAi and you will be fine! ;)