New wrx owner bolt on questions
#1
Registered User
Thread Starter
Join Date: Dec 2012
Location: Texas
Posts: 9
Car Info: Impreza WRX 2004
New wrx owner bolt on questions
Hey guys just joined the form I bought a 04 wrx as a toy and wanted help modding it . Looking for around the 300 wrhp mark . And wanted to know what was the best bang for my buck.
#2
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iTrader: (10)
to get your car up to 300whp.. -r.. you gotta get a turbo, intercooler, injectors and a fuel pump. Of course you are going to need a good tune, so go to your local subaru shop to get an protune. Since you are in texas, I have no idea whats out there, you may need to do a cobb AP tune. As far as turbos go, you can squeeze 300 out of a 16g turbo but its going to be pushing it unless you go e85 or a high octane fuel. If you want to stay on 91, it would be easier to go with an 18g turbo and all the supporting mods already mentioned.
#7
Da Brit.
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Join Date: Feb 2008
Location: Bay Area, CA
Posts: 2,808
Car Info: http://tinyurl.com/3vo4362
For autocross you are gonna want a fast spooling turbo and supporting mods. A twin scroll vf would be perfect. I know you want 300 but if autocross is the focus I would worry about brakes, suspension, sway bars, and tires before anything else. You may want to look into a 6 speed STi transmission swap.
Your 5 speed is good up to around 300whp but the gearing is not optimal.
Your 5 speed is good up to around 300whp but the gearing is not optimal.
#9
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full turbo back will hop you up roughly 50+hp. going with an evoIII 16g, a fast spooling turbo, will get you right under 300 and from the research I've done since I was considering getting it, its a great turbo. You can of course for with many 16g turbos and most spool pretty quick. A twin scroll vf would be nice, possible a vf34 if you can get your hands on one, I read those spool pretty nicely.
#10
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Thread Starter
Join Date: Dec 2012
Location: Texas
Posts: 9
Car Info: Impreza WRX 2004
Thanks guys I am doing a lot of research before I buy I really wanna pull the trigger on some stuff but waned to make sure it was quality stuff and gonna buy
So the part of the exhaust after the down pipe is the mid pipe it has a cat if I am correct ?
So the part of the exhaust after the down pipe is the mid pipe it has a cat if I am correct ?
#12
Da Brit.
iTrader: (31)
Join Date: Feb 2008
Location: Bay Area, CA
Posts: 2,808
Car Info: http://tinyurl.com/3vo4362
Alone the parts arent going to do much. think of it as these bolt ons will enable you to get the tune you want. You won't want to run them without a retune. Get all your parts and install them at the same time. This way you won't have to keep gettin retuned. Either limp it to the tuner, tow it, or get a base map to run for the trip. Stay out of boost.
#15
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Thread Starter
Join Date: Dec 2012
Location: Texas
Posts: 9
Car Info: Impreza WRX 2004
Yah a buddy built his and I am getting his old/ like 2 month old step up including tires the reason I am asking is bec we installed a magna flow cat back and the pipe that connects to it is done rusted and I researched it and can't find the part?