My 2004 WRX is displaying some strange symptoms, would anyone like to offer up possible issues?
here's the lowdown:
-Only snorkus delete and drop in filter mods.
- sound at low throttle in higher gears, mainly 4th and 5th. Does not make sound at any RPM in neutral
-sound is like humming/vibrating noise,kinda like when you vibrate your tongue between your teeth (hard to describe) eventually goes away as accelerating
-does not happen while in cruise control...
-I'm pretty sure there are no boost or exhaust leaks but i havent really checked thoroughly.
-No apparent performance issues, runs fine, calm idle

Pretty much i have no idea whats going on... it may not even be detrimental, but id rather it wasn't making that noise, it doesn't sound natural... any help/ideas would be welcomed and appreciated.

Thanks fellow scoob addicts

Hi Scooby lovers. I had bought on ebay.com turbocharger model GT25RS on boallbearing. mount this into my WRX and after few day it started to make some strange noises. Finally my turbo is broaken. Did anyone of you guys here heard about this model ? Is it some crappy MADE IN CHINA one ? Which of turbo you will recommend to put into my WRX 2002 year ? I have put Denso pink injectors, have 3" exhaust system ? How much safe power I can build from this setup ? What about Nm ? What is safe for stock clutch ?

I may be able to pick up some gruppe s headers for cheap and I was wondering if they are worth the buy. I have a tbe and up pipe with a blouch big 16g turbo and sti tmic. Good idea for the headers or not???? Ty all in advance for your answers

so when i start my car/ turn the wheels all the way my timing belt squeals and it's getting annoying. i think it's time to replace it. since i was already going to take this all apart i was thinking about putting a lightweight pulley in as well. i have 120,000 kms on my car (70,000mi) should i do a full timing belt kit/ water pump while i'm in there? also what kind of timing belt should i buy either way? just stock or greddy or something??
thanks.

would a 2.5 head fit one a 2.0 block or were can i get a 2,0 head

I have an SPT catback and I love the sound. In a year I would like to be a full TBE. For a awhile now I have been planning on getting Cobb's DP, but on their site they don't list their Uppipe. So I came across a place where I can get Helix DP and UP together as a package for $550 (this is catted version because I have to go through emission checks). Anyone have Helix partnered with their SPT? A lot of people say the Cobb one works well because it is a bellmouth and so is the Helix, so I wouldn't have any fitment problems right? If anyone has info on fitment, sound, and satisfaction from either the Helix products would be great, but if anyone could comment on their products with the SPT system would be great.

im looking at the next step for my car i own an 05 wrx im looking for a downpipe. now my question is i eventully want an air/fuel ratio gauge and wideband o2 sensor now on after market downpipes do some alredy come equipped with the houseing for the sensor our to u have to weld ## own. any help would be great thank-you

Is there any cheaper turbo's that have the same spec's as the turbo's listed in the title? there's no tuning shops around tulsa, so i have to stick to the cobb base map, also on witch hunter they have some cheap injectors but their rated at 800+cc, would these work if the map calls for 565cc pinks? If not i hope they have some in 565cc, 150 bucks for a set of 4 injectors is a good deal including them paying a bill for ## stockers.

Hi new suby owner, recently aquired a modded 02 WRX and i have a cobb acessport stage 2 tune, its got full exhaust, up-pipe-downpipe, K&N. Well im wanting to install a TD05H-16 on there and use the cobb map for the FP-16, imma have my injectors modified to 565cc by witchhunter, as per cobb, it says using sti TMIN but i have wrx TMIN, the wrx one is bigger so i guess better airflow? Also i want something like a boost limiter, somewhere where i can run to work and back every and if i got WOT i wouldn't be making 330 crank hp, more like 230. Then when i wanted to have some fun i could flip a switch or something and unleash the power. Is there anyway to do that? sorry im a noob

Well I got the spark plugs changed and the car feels slower. It actually turns on without fighting me now tho. I wanted to do a fuel system cleaning as well but mechanic wouldn't do it customer he feared killing Turbo due to overheating by idling.
What could fix the sluggishness