cai or ram air for the GXP

**cleangtp** · 05-12-2010

Originally Posted by BeastlyGroceryGetter

No you cant IMO, thats the exact one I got and after having it I couldnt have gone with any thing else. Its very high quality and makes your car have a very loud growl from the front, but like I said it pays for itself in a couple of months with the gas savings....I think its a great product, also that is HP gain to the wheels and not to the crank.

Dude it's almost 300 bucks, not closed off to engine heat, creates more knock retard. You're paying almost 300 bucks for a intake tube and filter. You can pay 40 bucks, buy k&n filter, go to home depot, buy 4 inch abs tubing cut to the dimension you need. Buy roof flashing and close it off to the heat or run open cone. The reason the gas mileage is better is because it sucks in hot air. If you live in a winter climate have you ever wondered why you use more fuel in the winter? Cool dense air near ambient temps will always make more power.

**IR II IP IDEATH** · 05-13-2010

Actually I don't get any worse gas mileage in colder temps than in hotter as far as I know, going to work would let me know that and i spend the same on gas each week either way, as far as the "custom" intake..... Idk I would much rather have the higher quality prebuilt intake system with the heat shield that does easily block the heat(u could see that if u seen it installed) than I would the other intake that could potientally damage or throw off the settings but idk I know nothing about cars, I just go for the easier and safer route when it comes to my(way too big of) investment.

**06blgxplover** · 05-13-2010

Originally Posted by BeastlyGroceryGetter

Actually I don't get any worse gas mileage in colder temps than in hotter as far as I know, going to work would let me know that and i spend the same on gas each week either way, as far as the "custom" intake..... Idk I would much rather have the higher quality prebuilt intake system with the heat shield that does easily block the heat(u could see that if u seen it installed) than I would the other intake that could potientally damage or throw off the settings but idk I know nothing about cars, I just go for the easier and safer route when it comes to my(way too big of) investment.

good points man! for me i like K&n products and i'm not that much of a handy man when it come to those things, like BGG said i would rather get one that premade for my car. now thats not saying i have not looked for other CAI's, the problem is that there isn't any other CAI out there right now for my V8

.

**nmp0098** · 05-13-2010

Originally Posted by cleangtp

Dude it's almost 300 bucks, not closed off to engine heat, creates more knock retard. You're paying almost 300 bucks for a intake tube and filter. You can pay 40 bucks, buy k&n filter, go to home depot, buy 4 inch abs tubing cut to the dimension you need. Buy roof flashing and close it off to the heat or run open cone. The reason the gas mileage is better is because it sucks in hot air. If you live in a winter climate have you ever wondered why you use more fuel in the winter? Cool dense air near ambient temps will always make more power.

The reason the K&N gets better mileage is because it is less of a restriction than a Delco filter, but the tradeoff is that the K&N is only about half as effective at filtering out particulate matter. It's a flow difference, and if you see more than 0.5mpg improvement some of that is because you changed the way the MAF reads and leaned out the fuel mixture. Beastly, it may also be that you are spending more time in DOD because you bumped up the power a bit. 4mpg is about in the middle of the range I've seen DOD help (from about 2mpg at 90 to 12mpg at 50).

You use more gas in the winter because of a lot of reasons. For emissions reasons, gas is reformulated in the winter with additives to keep gas from freezing and help cold starts. This lowers the amount of energy per gallon of gas. Also, it takes more gas to push through snow than it does to roll on pavement. There's actually several more reasons why mileage is worse in the winter that are related to temperature, but have nothing to do with the temperature of air going into the engine directly. I'm not arguing that colder air doesn't make more power, but that's because of better cylinder filling and better thermal efficiency. The improved thermal efficiency helps mileage a bit, but in the winter it is more than offset by the changes to gas.

My setup is from Cold Air Inductions, and does a decent job of sealing out hot engine air. It uses a K&N filter but is a little cheaper.

**blueguy** · 05-16-2010

Originally Posted by cleangtp

Dude it's almost 300 bucks, not closed off to engine heat, creates more knock retard. You're paying almost 300 bucks for a intake tube and filter. You can pay 40 bucks, buy k&n filter, go to home depot, buy 4 inch abs tubing cut to the dimension you need. Buy roof flashing and close it off to the heat or run open cone. The reason the gas mileage is better is because it sucks in hot air. If you live in a winter climate have you ever wondered why you use more fuel in the winter? Cool dense air near ambient temps will always make more power

Some people just want the ease of it...and the warranty...or the name brand...or just don't posses the raw mechanical skills you do.

**06blgxplover** · 05-16-2010

Originally Posted by cleangtp

Dude it's almost 300 bucks, not closed off to engine heat, creates more knock retard. You're paying almost 300 bucks for a intake tube and filter. You can pay 40 bucks, buy k&n filter, go to home depot, buy 4 inch abs tubing cut to the dimension you need. Buy roof flashing and close it off to the heat or run open cone. The reason the gas mileage is better is because it sucks in hot air. If you live in a winter climate have you ever wondered why you use more fuel in the winter? Cool dense air near ambient temps will always make more power.

dude calm down

**IR II IP IDEATH** · 05-17-2010

yea i couldnt find the dip stick much less make an intake, i am a gun mechanic not a car mechanic

**cleangtp** · 05-17-2010

Originally Posted by BeastlyGroceryGetter

yea i couldnt find the dip stick much less make an intake, i am a gun mechanic not a car mechanic

Here's my intake, quite easy to do, very simple. Cost me $66 out the door with a $10 off coupon from advance. It's 4 inch tubing with a 45 degree bend, I tried the 22.5 degree bend but the filter was to big and was hitting I believe the cruise control. I bought one 3.5 to 4in coupler, bought a 7/8's holesaw bit for IAT, came with the grommet. K&N filter 4x9 inch very pleased. I actually saw on the butt dyno you can def feel the difference. Supercharger screams like a baby. I also had a old 45 degree elbow and since my car is a 98gtp I already had the triangle duct where the guys use the roof flashing. I attatched the 45 degree bend on the inside of the fenderwell to duct cold air right to the tip of the filter. Cell phone pic sorry bout the quality.

Cell phone pic, sorry bout the quality.

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