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Old 07-16-2018, 05:07 PM   #1
Max2003WRX
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Talking What should my next mod be?

So I have an 03 WRX, and I'm craving more power. SO far, I have the following mods:

-SPT intake/ exhaust
-Nvidia up and down pipes
-Motor and trans mounts
-Greddy BOV
-all aluminum radiator
-COBB accessport

I welcome all suggestions for my next mod. I'd mostly like to know what I can do to get more hp/boost for the least amount of money, but if you think I should do something else first, feel free to let me know!
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Last edited by Max2003WRX; 07-16-2018 at 07:52 PM.
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Old 07-16-2018, 07:20 PM   #2
subaru_gc8
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cobb ap
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Old 07-16-2018, 07:21 PM   #3
CarmelValleyWRX
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do you have acessport or tactrix? that should be the first thing you get. then get someone to tune it. your likely not making any power right now. all that is happening is its over-boosting and knocking.
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Old 07-16-2018, 07:52 PM   #4
Max2003WRX
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Quote:
Originally Posted by subaru_gc8 View Post
cobb ap
EDIT: i have one
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Old 07-16-2018, 07:53 PM   #5
Brother EddieJ.
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Least amount of money, driver mod. Learn to drive the car fast and around corners.
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Old 07-16-2018, 07:53 PM   #6
Max2003WRX
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Quote:
Originally Posted by CarmelValleyWRX View Post
do you have acessport or tactrix? that should be the first thing you get. then get someone to tune it. your likely not making any power right now. all that is happening is its over-boosting and knocking.
Edit: I have one
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Old 07-16-2018, 07:54 PM   #7
Max2003WRX
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Quote:
Originally Posted by CarmelValleyWRX View Post
do you have acessport or tactrix? that should be the first thing you get. then get someone to tune it. your likely not making any power right now. all that is happening is its over-boosting and knocking.
I forgot to mention that I have one sorry
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Old 07-16-2018, 08:19 PM   #8
CarmelValleyWRX
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have you hooked it up and flashed stage 2? that should get it pretty close so it runs sort of ok. if you are running the stock map than its probably not happy at all.
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Old 07-17-2018, 08:32 AM   #9
Max2003WRX
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Quote:
Originally Posted by CarmelValleyWRX View Post
have you hooked it up and flashed stage 2? that should get it pretty close so it runs sort of ok. if you are running the stock map than its probably not happy at all.
I'm super confused about that. COBB says to either sue the stock intake or a COBB intake for the stage 2 tune. Will I be okay with my SPT intake? ALSO, is my SPT exhaust has no cat, so does that make it a turbo-back?
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Old 07-17-2018, 12:04 PM   #10
mrsaturn7085
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Probably and no.
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Old 07-17-2018, 12:08 PM   #11
CarmelValleyWRX
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dont use aftermarket intakes unless you are able to scale your MAF sensor yourself (which it sounds like your not at that level yet) or get a tune that is set up for the exact intake you have.
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Old 07-17-2018, 01:07 PM   #12
Cobrakai
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Quote:
Originally Posted by Max2003WRX View Post
I'm super confused about that. COBB says to either sue the stock intake or a COBB intake for the stage 2 tune. Will I be okay with my SPT intake? ALSO, is my SPT exhaust has no cat, so does that make it a turbo-back?


I ran the SPT intake with a stage 2 OTS map without issue.

A friend that worked for Cobb said itís not suggested, but if the SPT works with the OEM mapping then I donít see why it would be an issue.

You can find a stock intake for dirt cheap if push comes to shove and your car isnít a happy camper.
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Old 07-17-2018, 01:21 PM   #13
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I would remove the SPT intake and BOV and install a stock airbox and stock BPV. Then get a pro-tune, not an "off the shelf" (OTS) tune.
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Old 07-17-2018, 02:54 PM   #14
CarmelValleyWRX
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well if your going to go for a pro tune might as well leave the intake on if you want to and have them scale the MAF. a UP and DP are very basic mods and i think a pro tune is throwing money away on such a simple setup.
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Old 07-17-2018, 03:40 PM   #15
car_freak85
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Quote:
Originally Posted by CarmelValleyWRX View Post
well if your going to go for a pro tune might as well leave the intake on if you want to and have them scale the MAF. a UP and DP are very basic mods and i think a pro tune is throwing money away on such a simple setup.
I'm not convinced an intake is effective on these cars under 400+ whp. Even then, they're just a good way to increase your IATs. OEM has a better filter set up and is actually ducted to cold air.

UP, TBE, tune, done. (if you just want to wake it up and not d!ck around with a bunch of mods/money/time)
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Old 07-17-2018, 04:58 PM   #16
Max2003WRX
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Quote:
Originally Posted by car_freak85 View Post
I would remove the SPT intake and BOV and install a stock airbox and stock BPV. Then get a pro-tune, not an "off the shelf" (OTS) tune.
Would the BOV affect the COBB e-tune? (which requires stock intake and TBE)
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Old 07-17-2018, 07:08 PM   #17
CarmelValleyWRX
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no the BOV is actually kind of ok to leave alone but it will cause the car to run really rich when you let off the gas and will make the car harder to drive and might mess with the fuel trims in the ECU.
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Old 07-17-2018, 07:45 PM   #18
Ghostlystang
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Not sure how many miles are on your car but maybe timing belt, water pump, and pulleys.

If your trying to be cheap I would do a drop in 255lph fuel pump, 565cc injectors, and a vf39 or vf43 depending on what you can get with a protune. That should satisfy you for a little bit.
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Old 07-17-2018, 08:16 PM   #19
Max2003WRX
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Quote:
Originally Posted by CarmelValleyWRX View Post
no the BOV is actually kind of ok to leave alone but it will cause the car to run really rich when you let off the gas and will make the car harder to drive and might mess with the fuel trims in the ECU.
Have you heard of the recirculation add-ons for BOV's? They apparently make the BOV act like a BPV, but I'm not sure if they keep the blow-off sound or not.
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Old 07-21-2018, 10:51 PM   #20
MedicDG
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Quote:
Originally Posted by car_freak85 View Post
I would remove the SPT intake and BOV and install a stock airbox and stock BPV. Then get a pro-tune, not an "off the shelf" (OTS) tune.


Best advice of the week...you should take it!
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Old 07-27-2018, 12:47 AM   #21
contaminatrix
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Get yourself some pinks or blues, 3port bcs, full tbe, fmic, and td05 16g {best for 2.0L).
Get a custom tune. Consider speed density as well.
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