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Old 02-10-2012, 09:42 AM   #1
hotshot2109
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Default 02 WRX needs a tune with just bolt ons?

I have an 02 wrx and a friend told me I should get a tune even with only having an equal length header, stock catted up pipe, 3" catted down pipe, 3" catback, sti top mount with hks ssqv and spt cold air intake. I have a turboXS utec uninstalled...
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Old 02-10-2012, 09:53 AM   #2
brutnus
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Its just a safety thing for your car. You want to make sure its tuned to run on your mods. if in doubt get it tuned.
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Old 02-10-2012, 10:02 AM   #3
jayman4312
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exhaust and bov......doesn't seem ricey to me at all.

No you do not "need" a tune, but you will get much more performance and reliability if you do tune.
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Old 02-10-2012, 04:41 PM   #4
WMCCook29
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You really need to get a catless UP in there, your turbo will thank you!
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Old 02-10-2012, 09:21 PM   #5
pocketdrummer
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sell the hks ssqv and spt cold air intake. Buy a grimmspeed uppipe (or equivelent), get a tune.

The BOV will only jack with your AFR during shifts and won't really give you anything other than looks with raised brows.

The stock airbox is good until 350-400 AWHP (if I'm not mistaken, double check the exact number). You won't be making that much unless you get a larger turbo. Not to mention you're drastically increasing the chance of hydrolock. Also, you're AFR will be off from this until you tune for it as well.

The Up-pipe, on the other hand, will help the turbo spool up faster and generally give you more power. This part technically doesn't require a tune, but all new parts perform better after a tune.
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Old 02-11-2012, 01:14 AM   #6
03Rextacy
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Quote:
Originally Posted by pocketdrummer
The Up-pipe, on the other hand, will help the turbo spool up faster and generally give you more power. This part technically doesn't require a tune, but all new parts perform better after a tune.
Not to mention, could save your a$$ should the cat decide to break free. First mod IMO should be a catless Uppipe.
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Old 02-19-2012, 09:03 PM   #7
hotshot2109
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This is just my winter car.. I have an 04 STi also. Some semi local subaru guys said I should get a tune mostly for ignition purposes. I could care less how it performs I just want to keep it reliable and sound good.
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Old 02-19-2012, 09:22 PM   #8
WhiteBgeye02
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well if u want reliable then get a tune and keep it conservative.
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Old 02-20-2012, 02:18 AM   #9
Byzantium
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SPT intake needs to be tuned for and you're not benefiting with that TMIC without tuning either.
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Old 02-20-2012, 08:37 AM   #10
wrxlaunch
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Quote:
Originally Posted by Byzantium
SPT intake needs to be tuned for .
No it doesn't... Ran it on my bugeye for 2yrs, never had a cel or any other probs.
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Old 02-20-2012, 08:41 AM   #11
Byzantium
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Quote:
Originally Posted by wrxlaunch View Post
No it doesn't... Ran it on my bugeye for 2yrs, never had a cel or any other probs.
Great. The MAF housing is smaller than stock. It needs to be tuned for. Even Subaru accounted for this with a reflash.
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Old 02-20-2012, 10:29 AM   #12
wrxlaunch
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Good to know... Thnx for update
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Old 02-20-2012, 03:32 PM   #13
FraudulentNeon
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For the later model owners, just wanted to reiterate that the 02-03 cars only can safely be modded without a tune.

Regardless, wake that thing up with a tune! Night and day.
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Old 02-20-2012, 03:49 PM   #14
Byzantium
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^ Depends totally on the mods in question.
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Old 02-25-2012, 08:39 AM   #15
hotshot2109
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It turns out I can stand the way the car feels with that tiny turbo spooling unusable heat the whole time, and the tiny top mount isn't doing much. So I have a holset hx35, all the flanges and pipe to rotate, fmic kit with enough pipe to mod it for the holset, STi 535cc injectors from my car, and a utec. I'm going to add a few other pieces and boost 10psi, maybe some holset lag will help with the 20mpg and step up the power output to more then what this gutless wonder has now..
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