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-   -   04 WRX first mods (http://www.wrxtuners.com/forums/f51/04-wrx-first-mods-43729/)

Jsnacker 01-13-2014 05:45 AM

04 WRX first mods
 
Just bought a 1 owner wrx not modded from a 65year old women, car has 116k. I'm going to rebuild the transmission. So while I have car apart is there any important upgrades I should do? What weaknesses does the 2.0T engines have? I heard the tranny isn't super strong and would like to upgrade that.

psinuse 01-13-2014 02:40 PM

04 had the better transmission than 02 and mid 03...Why are you rebuilding the trans? Well change the timing belt for starters if it hasn't already been done. Clutch/Flywheel as well, but that's a given since you have the trans out. Give the car a good once over and if it has a clean bill of health(i.e. compression, no oil leaks, fluid leaks things of that nature) than I would consider some form of EM for it first...

Jsnacker 01-13-2014 04:08 PM

Well I bought car with transmission shifting threw gears rough. So going to open it up and go through everything, and buy a rebuild kit. Owner also said car has a miss in #2 cylinder but while running engine seems fine

Jsnacker 01-13-2014 04:10 PM

Only misses when I start it up. Maybe add a new head gasket

man show 01-13-2014 04:14 PM

You might want to upgrade the transmission mounts while you're there and perhaps a few polyurethane bushings

LW_Black4 01-13-2014 05:32 PM

Fabulous auto, mate. I have a blue one. :)

Jsnacker 01-13-2014 08:01 PM

Car does have a brand new clutch. Any upgrades for reliability? I know they are great engines. I want to stay 300hp or less

LW_Black4 01-13-2014 08:55 PM

1 Attachment(s)
A cat-less turbo uppipe, to protect the turbo.

This is what it looks like with a thermal wrap on it, prior to installation.

psinuse 01-13-2014 08:58 PM

Again once it has a clean bill of health start with Engine Management of some sort, whether it be Cobb AP, Open source, Hydra, etc. Then go with exhaust...

Jsnacker 01-14-2014 01:53 PM

I like the Cobb AP system... What exhaust is recommended. I want it to sound great, have some noise but not too loud. Like an in-between pipe is what I want.

psinuse 01-14-2014 01:57 PM

After market DP and factory cat back...that will be quiet, but still give a a good performance factor.

Jsnacker 01-14-2014 02:07 PM

I want louder than stock. Just not ridicules.

LW_Black4 01-14-2014 03:06 PM

2 Attachment(s)
[B]Invidia Q200 - that's the one I want.[/B] Here's a pic of the down pipe and cat back exhausts. Together they are a turbo-back exhaust.

There are a few down pipe (DP) options. Ones with- or without a cat(alytic converter) and divorced- or open bellmouth fitting. The bellmouth fitting is bolted to the discharge of the turbo.

The picture show is of at catted and divorced downpipe.

Jsnacker 01-16-2014 06:10 AM

Correct me if I'm wrong.. So a dp is what's gonna add HP gains and a cat back is just for the sound aspect and not performance.

psinuse 01-16-2014 06:43 AM

Correct, the amount of hp gains from a cat back are very minimal...maybe 5hp overall


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