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Cold Air Intake & Catback Exhaust?

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J-ComptonSteeze
Posts: 34 - Karma: 5
I just got a 2007 Subaru WRX sedan with a 2.5L engine and I want to know what's a good cold air intake and catback exhaust system for it?
Mar 23 2007 9:37AM
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japanada
Posts: 13784 - Karma: 1,957
join a Subi forum.
Mar 23 2007 10:37AM
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.David.
Posts: 1273 - Karma: 12
www.nasioc.com
www.clubwrx.net
www.subydude.com
www.i-club.com

Just make sure you search for your questions before posting, especially on nasioc, because they flame any and all noobs.. especially for not searching.. (sounds strangly familiar to another site I know)...
Mar 23 2007 10:46AM
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.David.
Posts: 1273 - Karma: 12
post some pics of your new ride.. i'm jealous.
Mar 23 2007 10:46AM
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wrenegade
Posts: 6631 - Karma: 41
look on NASIOC. So much good information there, it will take you weeks to get through it all.
Mar 23 2007 11:35AM
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skierdudeguy
Posts: 6574 - Karma: 81
cold air intake is over rated. price to horsepower isnt very good.
Mar 23 2007 11:47AM
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da-bling
Posts: 1145 - Karma: 11
my friend has an INJEN intake for his wrx, sounds nice
Mar 23 2007 12:14PM
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japanada
Posts: 13784 - Karma: 1,957
true price to hp gained its not. With that mindset, go with a upgraded turbo kit and a tune.
Mar 23 2007 3:17PM
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snowXrider540
Posts: 1182 - Karma: 12
post a pic of that thing i wanna see it, as for the question i would just shop around to what you think would work best for how you drive etc.
Mar 23 2007 3:19PM
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Goobie
Posts: 615 - Karma: 30
get an injen or AEM cold air intake and a skunk2 or Greddy Evo2 exhaust
Mar 23 2007 3:23PM
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Jibbin_the_717
Posts: 210 - Karma: 10
get a turbo you need that extra power right out of a turn with that 4 wheel drive. thats if your gunna race atleast
Mar 23 2007 3:29PM
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396222687862
Posts: 0 - Karma: 350
do you know what a WRX is? obviously not.







wrx's have turbos as stock you fucktard
Mar 23 2007 3:50PM
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wrenegade
Posts: 6631 - Karma: 41
I'm sure he means a bigger turbo. And I agree with whats said above, I wouldn't waste your time with an intake...yet. Get a new exhaust/uppipe/downpipe and a chip and a professional tune. Can't stress that one enough. Afterwards you can deal with new injectors, fuel pump, turbo, FMIC and the like.

My WRX with a uppipe, downpipe, STi exhaust, Chip and tune is plenty fast for me. I don't race it though.
Mar 23 2007 5:04PM
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chickenwang
Posts: 5639 - Karma: 40
dont get an intake your rx will never run the same again

and get the catback
Mar 23 2007 5:22PM
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vincepru
Posts: 5474 - Karma: 17
dont get an intake. stock intake is proven to outperfrom aftermarket ones. just do the silencer delete if you just want to hear the turbo spool more. but exhaust wise i have a full ERZ system, downpipe and cat back. and i just de-catted my stock uppipe.
Mar 23 2007 5:48PM
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NomenClature
Posts: 4348 - Karma: 83
sell it and buy :

2005 WRX STI
2001-2003 Audi S4

on a high compression turbo like a WRX, cat back wouldnt do shit

you want TURBO-back exhaust. And you want high flow Cats.

Cold air intake is NOT what you want especially if your driving in wet conditions.

you just want a high performance air intake (cold air bends down and is alot closer to the ground)

If you ever have money to throw at your car, you can do a bolt-on turbo upgrade and get +400 HP
Mar 23 2007 8:49PM
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spere
Posts: 6105 - Karma: 248
definately, if you are gonna make any mods you need to get it tuned
Mar 23 2007 10:03PM
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Bigwoods
Posts: 3116 - Karma: 76
go for an AEM intake, my bro had one and loved it, then go for a Skunk2 or MagnaFlow exhaust
Mar 23 2007 10:06PM
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Beamer12
Posts: 3227 - Karma: 46
wrxlinks.com
Mar 23 2007 10:10PM
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Beamer12
Posts: 3227 - Karma: 46
DO NOT put a cold air intake on it. wrx stock airbox is very suffiecient, a cold air intake will lean the car out like whoa and possibly cause detonation. if you want sound, go with a catback first. if you want power, go with a downpipe first. a good catback is the hks carbon-Ti, and any downpipe even ebay downpipes are fine.
Mar 23 2007 10:14PM
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burton2323
Posts: 8 - Karma: 10
you guys are idiots. besides paul. whoever said that wrx's have high compression motors needs to learn what boost is and what it does to forced induced motors. forced induced motors need LOW compression to prevent detonation. 02-05 wrx stock compression is 8.0:1, runs 13.5 lbs of boost, and holds an afr of 11.1:1 that is VERY rich for a stock car. 06-07 has an extra .5 litres(so torque is greatly increased), same turbo(td04L-13T-6cm), just less boost 11.2lbs +/- .5 psi. 1st and 2nd and 3rd gear were also widened for the increased torque. subaru must of had sticks in their asses when they designed this car. who puts cats pre-turbo?

anyways, dont put an intake on a wrx untill your making 400+ whp. theres 3279867 reasons not to.
1. its right near the turbo, which means no matter how special of a heat shield you can get your still going to heat soak the intake and induce hot air.

2. by throwing an intake on without proper engine management, the motor induces more air without adjusting fuel curve. which means car runs lean, and runs the risk of detonating, poeple have seen knock corrections near -7, pull major timing and then you have a slow car that runs horrible ignition timing.

3. forget catback, either do downpipe or uppipe first. downpipe is where all the power is, uppipe will get you on boost much sooner. combine that with the extra .5 litres the 06-07's have and the mucho torque they make youll be on boost by 2200 rpms. practically off idle. all a catback does is make the car louder. if you want sound unbolt the stock axleback remove gasket and put washers between the bolts.

4. most intakes for wrx's make them run worse, theres 3 that are proven to keep the same performance. NO increase. They are the aps cold air, injen cold air, and spt short ram. all these do is make the turbo louder, some occasions people have seen better throttle response and smoother boost curve.
Mar 23 2007 10:38PM
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newschooler8924
Posts: 747 - Karma: 9
helluva 1st post
Mar 23 2007 11:00PM
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burton2323
Posts: 8 - Karma: 10
haha i dont ski, i snowboard and know practically everything there is to know about wrx's.
Mar 23 2007 11:14PM
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burton2323
Posts: 8 - Karma: 10
and yeah if you asked that on nasdaq you would get flamed beyond all belief
Mar 23 2007 11:16PM
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newschooler8924
Posts: 747 - Karma: 9
message japanda or stealthsteez to get in the car cult if you arent already in it
Mar 23 2007 11:17PM
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ijibgoremtn
Posts: 4221 - Karma: 13
ok unless you change the exhaust all the way from the headers it wont do that much, oh and take the catalyic converter cut it off then have the exhaust pipe run with out it, then weld the converter overtop of the pipe but dont use it, just make it look like its there for inspections and shit, this will easily give you 30+ hp
Mar 24 2007 12:57AM
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burton2323
Posts: 8 - Karma: 10
stock wrx headers are very very good and have the perfect balance of low end torque and top end power. lol you dont need to cut anything, its called cutting the cats. theres 3 cats, one in the uppipe, and 2 in the downpipe. if you take uppipe and downpipe off you can drill out the cats and "gut" them. you wont get 30+ hp without tuning for it trust me. pretty much everything on these cars needs to be tuned for. youll have much better spool and make the boost control solendoids like alot easier
Mar 24 2007 10:40AM
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squeakywaffle
Posts: 1800 - Karma: 13
how about....

you leave it stock because it's fucking fast enough already, and actually have a valid warranty on your brand new car if it has gremlins from the factory or transmission problems down the road (classic WRX problem because people don't know how to drive AWD).

SOA are bitches about the warranty, so unless you're loaded or have parents who will bail you out, don't fuck with it for a couple of thousand miles at least.
Mar 24 2007 11:30AM
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vincepru
Posts: 5474 - Karma: 17
i have an 06 wagon. currently running stock uppipe(no need for upgrade on 06's) ERZ catback and downpipe. VF34 turbo. STi pink injectors, cobb accessport, fuel pump (most annoying fucker ever), upgraded top mount IC, my hood hardly shuts. get tuned on the 1st at bushur racing. :D
Mar 24 2007 1:06PM
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squeakywaffle
Posts: 1800 - Karma: 13
why is the car in your profile an older sedan and yet you now have an 06 wagon?
Mar 24 2007 1:23PM
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vincepru
Posts: 5474 - Karma: 17
^that one died. lol. ill find pics of it how it ended up and ill post.
Mar 24 2007 1:45PM
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vincepru
Posts: 5474 - Karma: 17
Click for larger image the wagon when i first got it.
Mar 24 2007 1:47PM
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MadAir915
Posts: 614 - Karma: 9
first of all should of gotten the STI
Mar 24 2007 3:09PM
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burton2323
Posts: 8 - Karma: 10
a wrx can be made way faster for way cheaper.


yo vincepru, what was wrong with the fuel pump haha you got a walbro? and what top mount? people have been making amazing numbers with ebay i/c's

be carefull once its tuned, the 5spd wrx tranny's are glass. you can tune a vf34 with a top mount to near if not more then 300 wheel. and our cars keep torque numbers right with horsepower, 300wtq is asking for trouble. any bit of shockload on the transmission and things will start breaking, trust me :)
Mar 25 2007 12:09AM
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burton2323
Posts: 8 - Karma: 10
its not awd people dont know how to drive, its that the car is turbocharged. things like partial throttle full boost, boost creep, blahblah esp once its modded
Mar 25 2007 12:12AM
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MadAir915
Posts: 614 - Karma: 9
but still its about saying u have a STI and u can make a sti faster to...
Mar 25 2007 2:32PM
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burton2323
Posts: 8 - Karma: 10
if you plan on BIG power get an sti

if you plan on BIG power like me and be differnt from everyone else get a wrx
Mar 25 2007 8:20PM
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MadAir915
Posts: 614 - Karma: 9
if u wanna be differnt get a even sicker car...
i drive a 1988 928s4...
Mar 25 2007 9:56PM
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Mert
Posts: 135 - Karma: 10
haha
Mar 25 2007 10:20PM
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MALONE
Posts: 3819 - Karma: 73
I thought we all decided car conversations are for car forums or cults.
Mar 25 2007 10:35PM
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squeakywaffle
Posts: 1800 - Karma: 13
A lot of people coming from 2wd cars will just launch their subarus like they would any other car, which spells death for the drivetrain because wheel spin can't act as a kind of "fuse" for the launch. Instead, all that excess energy not converted to forward motion gets soaked up by the drivetrain which results in some fucked transmission components pretty damn quickly. Subaru transmissions are built well but people still don't understand that it's so easy to fuck them up. The classic WRX problem is kids breaking their transmissions from launching...

If he isn't going to be launching then I guess it isn't a problem, but it's still a terrible idea to blow the warranty so soon because a lot of vehicles have problems that materialize in the first couple of thousand miles and if he's already modded, then tough shit. Additionally, modding before the car is totally broken-in is just, like, why can't you wait a bit? Is the money really that uncomfortable in your wallet?
Mar 26 2007 1:34AM
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