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Old 02-12-2012, 10:31 PM   #1
olive4ce
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Default Stage 1 vs stage 2

Okay, so I just bought my first WRX on July of last year and I currently have 6000 miles on it. I am thinking of going stage 2 (Cobb AP, Cobb DP and I want to keep OEM intake and exhaust) it will be my first upgrade and I have some questions of reliability vs performance. I understand that there will always be some risk to tuning, however, I would like to know what I'm getting my self into first. I am an aircraft tech apprentice so I have some mechanical background (hopefully that will help). Will there be any advantage to upgrading the intake and exhaust other than sound (I have read that the stock intake is good for up to 400 hp and the exhaust isn't too restrictive). What will the boost be with stage 2? Is there a big jump from stock to stage 1? Also, stage 1 to 2? Thanks for the advice!
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Old 02-13-2012, 12:09 AM   #2
northman
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what year WRX are you talking about? Kinda makes a difference. 08 and prior have the little TD-04 turbo, 09 and later have a VF52 which is good for 300-ish whp, with a few mods.
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Old 02-13-2012, 11:04 AM   #3
s2ktosti
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If you have an 09+ you'll need a down pipe at minimum for stage 2. I'd skip the intake and save your money.
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Old 02-13-2012, 11:13 AM   #4
guroove
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+1 on skipping the intake.

I think stage 1 or 2 when you are talking about a TD04 and a 2.5L block are both just a tease. The biggest bump in power happens from 2500 - 3200 rpm, with the throttle pegged. They just make it more noticeable how poor of a choice the TD04 is. TD04 failures in modded 04-05 FXTs are becoming extremely common, because the turbo was never designed to be pushed that hard.
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Old 02-13-2012, 04:15 PM   #5
Force_Fed_4Door
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Quote:
Originally Posted by northman View Post
what year WRX are you talking about? Kinda makes a difference. 08 and prior have the little TD-04 turbo, 09 and later have a VF52 which is good for 300-ish whp, with a few mods.
I don't have much experience with the earlier models so this info will help but for the newer cars everything that I've seen/read is that moving to aftermarket exhaust will provide more sound but not much else in the way of power. The Down Pipe is really the key.

On the intake.. I've heard arguments on both sides but most feel that the stock airbox is a good set up for Stage 2 power and you can spend your money better elsewhere.
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Old 02-13-2012, 09:56 PM   #6
olive4ce
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I have a 2011 4 door. Will the OEM exhaust be an issue? I would prefer to not have too much additional noise... more so because of the $$$
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Old 02-14-2012, 01:52 PM   #7
Jarzar06
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Quote:
Originally Posted by olive4ce View Post
I have a 2011 4 door. Will the OEM exhaust be an issue? I would prefer to not have too much additional noise... more so because of the $$$
Go stage 2 and run the OEM Catback it will cut down the noise. Depending on your map or if you go Protune or not your looking about 17-18psi for OTS maps under stage 2
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Old 02-14-2012, 09:36 PM   #8
BrigadoonB
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Subscribed.
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Old 02-14-2012, 11:38 PM   #9
olive4ce
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Okay, thank you for the help I think I am going to go stage 2. One last question... What is the deal with dataloging? Is that something that has to be done all the time with the AP?
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Old 02-15-2012, 12:25 AM   #10
Dartholomew
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You don't HAVE to datalog at all. A lot of people just flash the map and run it, and never touch their AP again. But many realize that the AP is a useful tool outside of just flashing, and it can really give you a peek into the inner workings and health of your tune. There are a lot of data parameters, but logging lets you see what your timing is, your AFR, whether you're knocking and how the car is handling it, and about a hundred other parameters.

Some tuners (like Eric from Torqued Performance) will review your logs when you buy their maps, and make changes for you to optimize safety/performance for your specific car.

It's all about what you want to get out of it.
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