Best bang for the buck mod?
Knowing what I know now.. if i Had to do it all over.. it would be.
Stage 0 - Short on cash but want a low cost mod for good quick horsepower.
1. Boost Controller
2. Tune
Whp will bump your power to about 280whp Car stock is about 250whp.
Stage 1 - Breathing Stage
1. Full Exhaust from the turbo Back - Test pipe is optional
2. 02 housing
3. Lower Intercooler Pipe
4. Amsoil Intake with MAF Adapter. - Please do not put a pipe on the car It will cause funky stalling and idling problems Stock intake is good however until about 350whp. But if you know you'll eventually want more power just get it now.
5. Re-Tune for these parts
This should put you around 325 whp
Stage 2 - Power Adders
1. Kelford 272 Cams with GSC Behive Springs Stock retainers are good enough for now.
2. 255 Walboro Fuel Pump
3. 880 Injectors
4. Front mount intercooler
5. Re-Tune for these mods
This should put you around 365whp on pump gas.
Stage 3 - Getting more expensive but great power adders
1. Twin Disk Clutch Either Quartermaster or Exedy - Your launches will be so much better with this.
2. a FP RED, Tomei, or BBK Turbo to start with.
3. Port match everything. Your Exhaust manifold, Turbo, O2 Housing.
4. Get Meth injection or Put Race gas on the car
5. Tune for these new parts.
This should put you over 430whp or about 480whp on Meth or Race Gas Tune.
I could go on.. but for now I think this is within your limits.
Keep in mind.. somewhere along the line.. you'll want to buy a boost gauge, and Wideband Gauge. These evo's to mod surely aren't cheap.
Stage 0 - Short on cash but want a low cost mod for good quick horsepower.
1. Boost Controller
2. Tune
Whp will bump your power to about 280whp Car stock is about 250whp.
Stage 1 - Breathing Stage
1. Full Exhaust from the turbo Back - Test pipe is optional
2. 02 housing
3. Lower Intercooler Pipe
4. Amsoil Intake with MAF Adapter. - Please do not put a pipe on the car It will cause funky stalling and idling problems Stock intake is good however until about 350whp. But if you know you'll eventually want more power just get it now.
5. Re-Tune for these parts
This should put you around 325 whp
Stage 2 - Power Adders
1. Kelford 272 Cams with GSC Behive Springs Stock retainers are good enough for now.
2. 255 Walboro Fuel Pump
3. 880 Injectors
4. Front mount intercooler
5. Re-Tune for these mods
This should put you around 365whp on pump gas.
Stage 3 - Getting more expensive but great power adders
1. Twin Disk Clutch Either Quartermaster or Exedy - Your launches will be so much better with this.
2. a FP RED, Tomei, or BBK Turbo to start with.
3. Port match everything. Your Exhaust manifold, Turbo, O2 Housing.
4. Get Meth injection or Put Race gas on the car
5. Tune for these new parts.
This should put you over 430whp or about 480whp on Meth or Race Gas Tune.
I could go on.. but for now I think this is within your limits.
Keep in mind.. somewhere along the line.. you'll want to buy a boost gauge, and Wideband Gauge. These evo's to mod surely aren't cheap.
Last edited by JediGillTees; Jun 5, 2009 at 02:01 PM.
Knowing what I know now.. if i Had to do it all over.. it would be.
Stage 0 - Short on cash but want a low cost mod for good quick horsepower.
1. Boost Controller
2. Tune
Whp will bump your power to about 280whp Car stock is about 250whp.
Stage 1 - Breathing Stage
1. Full Exhaust from the turbo Back - Test pipe is optional
2. 02 housing
3. Lower Intercooler Pipe
4. Amsoil Intake with MAF Adapter. - Please do not put a pipe on the car It will cause funky stalling and idling problems Stock intake is good however until about 350whp. But if you know you'll eventually want more power just get it now.
5. Re-Tune for these parts
This should put you around 325 whp
Stage 2 - Power Adders
1. Kelford 272 Cams with GSC Behive Springs Stock retainers are good enough for now.
2. 255 Walboro Fuel Pump
3. 880 Injectors
4. Front mount intercooler
5. Re-Tune for these mods
This should put you around 365whp on pump gas.
Stage 3 - Getting more expensive but great power adders
1. Twin Disk Clutch Either Quartermaster or Exedy - Your launches will be so much better with this.
2. a FP RED, Tomei, or BBK Turbo to start with.
3. Port match everything. Your Exhaust manifold, Turbo, O2 Housing.
4. Get Meth injection or Put Race gas on the car
5. Tune for these new parts.
This should put you over 430whp or about 480whp on Meth or Race Gas Tune.
I could go on.. but for now I think this is within your limits.
Keep in mind.. somewhere along the line.. you'll want to buy a boost gauge, and Wideband Gauge. These evo's to mod surely aren't cheap.
Stage 0 - Short on cash but want a low cost mod for good quick horsepower.
1. Boost Controller
2. Tune
Whp will bump your power to about 280whp Car stock is about 250whp.
Stage 1 - Breathing Stage
1. Full Exhaust from the turbo Back - Test pipe is optional
2. 02 housing
3. Lower Intercooler Pipe
4. Amsoil Intake with MAF Adapter. - Please do not put a pipe on the car It will cause funky stalling and idling problems Stock intake is good however until about 350whp. But if you know you'll eventually want more power just get it now.
5. Re-Tune for these parts
This should put you around 325 whp
Stage 2 - Power Adders
1. Kelford 272 Cams with GSC Behive Springs Stock retainers are good enough for now.
2. 255 Walboro Fuel Pump
3. 880 Injectors
4. Front mount intercooler
5. Re-Tune for these mods
This should put you around 365whp on pump gas.
Stage 3 - Getting more expensive but great power adders
1. Twin Disk Clutch Either Quartermaster or Exedy - Your launches will be so much better with this.
2. a FP RED, Tomei, or BBK Turbo to start with.
3. Port match everything. Your Exhaust manifold, Turbo, O2 Housing.
4. Get Meth injection or Put Race gas on the car
5. Tune for these new parts.
This should put you over 430whp or about 480whp on Meth or Race Gas Tune.
I could go on.. but for now I think this is within your limits.
Keep in mind.. somewhere along the line.. you'll want to buy a boost gauge, and Wideband Gauge. These evo's to mod surely aren't cheap.
I agree with his discription of the 'stages'.
I would say hands down a tune is the best mod EVER. Just look at indy evo lol.
Evolved Member
Joined: Mar 2002
Posts: 4,312
Likes: 3
From: Birmingham, AL
Nice post. I just want to clarify here, you mean "filter" instead of intake, as your advice is to avoid changing the stock intake pipe because it confuses the MAF.
Evolved Member
Joined: May 2008
Posts: 697
Likes: 1
From: Mitchigan
agreed, after spending so much modifying my STi, I wish I would have just swapped turbo's first....all the bolt on's help, but in the long run a swapped turbo is what you end up doing anyway, might as well do that first and only put bolt on's on that are necessary to putting down the power that that big lb/min turbo needs(injectors, intakes, fuel pumps, fuel rails, certain bolt # exhaust manifolds...so stuff you NEED to run the swapped turbo) so you will spend less money on bolt on's you didn't NEED
plus, the more non oem stuff you run the easier it is for your car to have issues
plus, the more non oem stuff you run the easier it is for your car to have issues
Evolved Member
Joined: Mar 2002
Posts: 4,312
Likes: 3
From: Birmingham, AL
My apologizes.. you are correct.. I mean Amsoil Air Filter. The cone Style one. I used to have a AEM Cold air intake.. and the car idled like crap. It often stalled on me at red lights and stop signs. I put the Stock Snorkel back on removing the AEM hard pipe and it ran like a champ. My guess is the gills (accordian like corners) on the stock intake pipe help with the idle quite a bit. I know it sounds intuitive to have a smooth pipe but honestly with the stock MAF this will only confuse it and cause many idling issues.
Find a quality stock ECU tuner (Jester, CWill, or Mellon for example) and stick with a couple of mods (I used a MBC and a Perrin air filter) and refine the tune. At the level of whp you want to make it won't take much to get there.
Turbo back exhaust
Lower intercooler pipe
Manual boost controller
Drop in Filter (or get an intake if not using stock MAF)
Fuel pump
Wideband
Tune (most beneficial for these cars period!)
Injecters ( plan on running E-85)
E-85
Lower intercooler pipe
Manual boost controller
Drop in Filter (or get an intake if not using stock MAF)
Fuel pump
Wideband
Tune (most beneficial for these cars period!)
Injecters ( plan on running E-85)
E-85
Last edited by MuslimEvoFreak; Jun 6, 2009 at 10:11 AM.
NO!!!!!
Just keep the stock pipe and air filter.. Trust me.. For your power goals.. you can keep the stock intake to about 350whp.. And you won't really notice a thing.
Leave this alone.. Go for a boost controller and a tune first if youre strapped on cash and want power.
Evo's come very rich from the factory on Stock tune. The do this because 93 octane isn't available everywhere in the United States.. Evo's come detuned to compensate to work safely wherever they are sold. A Tune alone from a stock Evo can net you over 20-25 whp. Not changing any parts. Add a Boost controller to up the boost and you'll be happy
