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Old 09-05-2005, 04:27 PM   #1
Scooby Newbie
Member#: 38263
Join Date: Jun 2003
Chapter/Region: BAIC
Location: Seattle, Wa
2003 WRX

Default Best setup for my 2001 2.5 RS

I was wondering the best setup for my 2001 2.5 RS. I want to make it streetable while also making it fast as hell. I already have ram air, cobb headers and cams, hks exhaust, and the cobb power pully. Any suggestions?
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Old 09-05-2005, 05:03 PM   #2
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Member#: 82259
Join Date: Mar 2005
Chapter/Region: BAIC
Location: koledge at csus
1999 impreza 2.2L
Brilliant Red <4EAT Club>


how about engine management?

grounding kit?

purty spark plugs?

bore the throttle body?


high CR pistons?

teh nawz?

short throw shift kit (hey it helps accel.)
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Old 09-05-2005, 07:50 PM   #3
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Chapter/Region: NESIC
Location: ME
00 GC6


"Fast as hell" and RS dont go together. Sorry dude but the EJ25 does not make alot of power, even with extensive mods. Swap the engine for a EJ20 or EJ257 if you want "fast as hell."
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Old 09-05-2005, 07:53 PM   #4
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2001 Outback Ltd.
Sedan - White


EM, like the Rallitek's PP would be a start. Like Nick said, you wont be going 'fast as hell.'
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Old 09-05-2005, 10:06 PM   #5
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Join Date: Jul 2004
Chapter/Region: South East
2005 Mazda3 Hatch
Titanium Grey Metallic


+1 to what Nicklbrso said.

If you want to finish out your ride, do suspension man. Shocks/springs(coilovers?)/rear sway/bushings/etc etc.

You've done most of the power mods for the EJ25. Like svek said, maybe high comp pistons with more engine work or EM. If you still desire a lot more, you just put all that money into the wrong engine. A swap to the EJ20 or the USDM STi would more likely suit you.
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Old 09-05-2005, 10:27 PM   #6
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Location: Morgantown, WVU
Cert Subaru Tech.
2004 PSM STI


spray that mutha. otherwise get a turbo.
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Old 09-06-2005, 03:21 PM   #7
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Chapter/Region: NWIC
Location: Beaverton, Oregon
95 R33 / 06 WRX
Dark Slvr / Crystal Slvr


Turbo or Supercharger...

either way if you want to be "fast as hell" your going to need 1 power adder
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