Which would be better for getting the biggest power boost on a 91 Eclispe GS with the 4G63 (2.0L)? Don't you need a hood scoop for the short ram intake so that you force more air in? I wan't to replace my stock intake with whichever will give me the biggest power boost. Thanks! :liebe011:

Yes. Short Ram is meant for Ram Air: meaning air is being directly forced into ur intake that is the best set up. BUT! yes you have to have a scoop in your hood that actually gonna feed the Ram in take. That would be the best performance set up, if you did that with a stock hood u wont get any where.

If u like the stock hood go for the cold air...

If you get a cold air then watch out for puddles, you wouldn't want water being sucked up and F****** up your engine now, would you?

they make bypass valves for that purpose.

well, none of them are worth wasting much money on. HP wise its not much difference, cold air intakes are more expensive then you waste another 50bucks for the bypass valve. Not worth it, get the short ram and be worry free with puddles.

actually unless u have a ram air hood CAIs net far greater hp gains than a short ram. colder air yeilds greater combuster which in turn yeilds more power. a regular short ram is just taking hot air in unless u have a hood scoop.

I think thr term "Ram Air" is just advertising hype. Ya wanna see ram air drive down the road with your hand out the window, Now does that feel like 5lbs of boost? If it does then go ahead hook the so-called Ram Air" down through the front of your hood down to that drivers hole in the front of ya fender after ya remove the clips and face it into the wind so you can "Ram' all the air the system that baby can handle...Now go find a stock GST and race em and check back with me.... :)

I think the correct name is "Cool Air Intake System" or "Under Hood Intake System" should be th correct name.

The Cool air that many compnays sell (And thei is not to diss em but to make em live up to what they are really advertising) should be sold in such a way as to have true separation of intake air and underhood temps as in a inlet tube and heat sheilding on the intire length of the tube and the filter installed on the outside of the car and yes it could e built to "Ram" the air but that in it's self would only serve as to keep the temp constant the in fact "The Ramming of air from the outside through a tube has no lbs. per. sq. in. effect on any engine" Period! ;)

I think you are misunderstanding the concept. ram air means the air is being forced into the engine bay due to the scoop in the hood. after entering the hood it goes directly into the filter of a short ram intake giving ur engine more air at once and cooler air at that. now a cold air intake is completely different. it is positioned lower to the ground where air temperatures are much cooler (cold are falls, plus its not getting the heat coming from the engine). If you have a hood with a hood scoop the short ram will net much better gains (of course when I say much better I mean like 10bhp total IF that.) also you cant compare a car with a CAI with a turboed car. CAIs are meant for Naturally aspirated cars. of course a turbo is gonna be faster CAI's were built for N/A cars to give them a lil extra pep.

You will not gain much power from a intake at all. Not only an intake, almost any bolt ons with a non turbo will net very little. I have a short ram intake and it sounds cool, if I even get ONE extra hp out of it then great. A CAI would have gotten me 2-3hp for $150 more, not including a bypass valve.

Also, the cold air really doesn't get cold air, it just sits lower, ok maybe a little cooler but still. And there's no way you're going to "ram" but so much air into your engine. Not only that but to keep up with that air you'd be using more fuel or be running lean, that is if it actually "rammed" an accountable amount of air into the engine.

Either way you decide to go remember it's all pipes. AEM 200$ OBX 20$ PCV plumbing from home depot 5$ its the same stuff. Save your money.

ebay piping with a good filter


works everytime.


but for you 420a guys.. get a piece of rubber hose insulation. cut it in half(half moon shape) and put that over your battery hold down.. MINE rubbed a hole though my short ram.

neither... a turbo. bolt ons are fun for the first 2 mins that you feel a performance increase. but after that you just want more. so save your money


that's my .02 :beer: