Originally Posted by SuperchargedSS

jeeze, been a rough day for me... 5 speed has always been the figure of speach for mtx, Im 32, not used to 6 speed being so common... lol

Originally Posted by pkskull77

At night, when the weather was nice and cold, I've seen several stock STi's run very low 13's. The drivers were also top notch, and knew how to launch an all wheel drive car. The thing is, learning how to launch a car like the STI usually take a lot of practice, which in turn puts a lot of wear and tear on the drivetrain. In the end most STi drivers end up giving up before they get good enough to put down great times.

All in all the STI and the EVO shouldn't be drag racing. Although they are very fast when launched correctly, in time the extra strain on the drive train will end up taking its toll. The cars are really made for tracks, auto x, and rally (if your dumb enought to rally your 30,000 dollar car God bless you).

I can tell you why that 2004 is running terrible times, the intake. Although spots on Cobb's website say they have fuel maps for intakes, they don't ( http://cobbtuning.com/sti/accessport/index.html )! The result is a car that actually loses power, compared to stock. If you see any guy in an STI running an intake without serious, serious modifications, he's going to be slower than stock. The stock airbox on the STI is very good, and is actually a cold air system. Unfortunately the resonators in the system hide the turbo sounds, so a ton of people run intakes (myself included), and end up losing power. Next time you see that guy, tell him to take the intake off, and reinstall the map, I bet he will do much better.

Originally Posted by Antyoo

i know all about the aftermarket intake problems. my WRX had an injen CAI on the car when i bought it. at night, the car would shake pretty badly at idle. im not sure on powerloss as i never had the stock intake. i cut down the intake to make a short ram out of it and the shaking went away. about 3 months after i got the car, i got a FMIC setup, so there is no chance of me running the stock airbox anymore, besides, my car has been taken as far as a stock turbo/fuel system WRX can go

but like i said, the track i go to is a slow track, but i saw an ion redline running 14.7's there and srt4's hitting high 13's with some mods. im pretty sure the low times also have a lot to do with the fact that STI's and WRX's have top mount intercoolers that heatsoak horribly in the up to 10-15min you have to wait to get a run in.

Originally Posted by SwizzDSMSS

V8killer, I will take a pic of me driving a STI this next weekend so you can charish it!! =)

Originally Posted by pkskull77

I saw a guy dyno with that particular unit on his STI and his air fuel ratios were all screwed up. Anything but the stock air box causes turbulence over the MAF sensor, and that equals bad. If power is your goal, get a drop in filter and keep the stocker.

This advice is not limited to the Impreza, most modern cars will have the same problem. Don’t waste your money on an intake; get something that comes with an ecu tune.

Originally Posted by Antyoo

my AFR is at a solid 12.0

Originally Posted by pkskull77

did you get tunned?

Originally Posted by Antyoo

purchased a wideband o2 setup and did the tuning myself

tuning is actually my favorite part of working on a car, your hands stay clean and you make the car run better and gain power

i truely see it as a waste of money to pay someone to do something to my car.

Originally Posted by pkskull77

Well that explains how you kept the car running well, most people don't bother tunning the air filter.