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Old 07-30-2006, 06:52 PM   #1
eKxR
Scooby Newbie
 
Member#: 121567
Join Date: Jul 2006
Location: Calgary AB
Vehicle:
02 WRX
PSM

Default question on AP and boost controller

Hi there im new to the forums from calgary and i was reading some posts on the COBB AP

I was wondering since it runs different boosts in different gears would a boost controller control that?

I just picked up my 02 wrx last week so i have no idea what i wanna do first

Thx
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Old 07-30-2006, 08:24 PM   #2
02WHITEDUB
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Member#: 96793
Join Date: Sep 2005
Chapter/Region: W. Canada
Location: Edmonton
Vehicle:
02 ProTuned TD04
Now with more clunks!

Default

Is your WRX bone-stock or was it modded by the previous owner?

Anyways, there are 2 very basic parts that are all you need to gain about 50hp. First is a downpipe. Second is engine management - a Cobb AccessPort for example. There are other EM systems but Cobb seems to be the most popular and n00b-friendly as well as very effective.

The downpipe can be had for between $200-800 depending on used/new and brand. The DP just needs to eliminate the cat directly after the turbo. With that done, you can flash a 'stage 2' map to your ECU from the AP. Bam = 50 horses, no CELs, better fuel economy, smoother power delivery. The AP should be about $650.

You don't need a BOV or an intake for WRXs. The stock BOV (actually BPV) and intake are superior the every aftermarket replacement until you get to a VERY high level of modification.

As well, if you're doing stage 2 (like most people will recommend) you should replace your uppipe with a cat-less one. You can gut the OEM cat, use an STi uppipe, or go aftermarket.

Once you go stage 2, you won't need a boost controller as your EM will control that.

Enjoy your car!

Here's a link to the best info threads on NASIOC. It might take a week, but read every topic, follow all the links, understand what's going on...You'll be waaaaay more informed when you're done! The answers to your next 10 questions are in here somewhere!

http://forums.nasioc.com/forums/showthread.php?t=533787
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Old 07-30-2006, 11:59 PM   #3
eKxR
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Member#: 121567
Join Date: Jul 2006
Location: Calgary AB
Vehicle:
02 WRX
PSM

Default

Thx for your reply 02dub
Yes my car is completely stock
Also another question would a aftermarket DP make the car ALOT louder or would u guys knw which one is the quietest
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Old 07-31-2006, 12:14 AM   #4
02WHITEDUB
Scooby Specialist
 
Member#: 96793
Join Date: Sep 2005
Chapter/Region: W. Canada
Location: Edmonton
Vehicle:
02 ProTuned TD04
Now with more clunks!

Default

Quote:
Originally Posted by eKxR
Thx for your reply 02dub
Yes my car is completely stock
Also another question would a aftermarket DP make the car ALOT louder or would u guys knw which one is the quietest
Quietest would be one that has a cat in it. Some 'shorty' DPs use the OEM 3rd cat. Long DPs replace both post-turbo OEM cats with either one high-flow cat or none at all.
The other factor in DP noise would be the inlet. A cast DP inlet will mask more noises than a bent tubular construction.
Your exhaust tone and volume is 80% dependent on the axleback or 'muffler' section you choose though, not too much on UP, DP etc.

I've got a Cobb catted DP. Cast inlet + cat = quiet, especially mated to an STi catback section.
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Old 08-01-2006, 03:04 AM   #5
eKxR
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Member#: 121567
Join Date: Jul 2006
Location: Calgary AB
Vehicle:
02 WRX
PSM

Default

just went to speedtech today and they told me they dont carry COBB stuff. Where should I get this stuff?

a NASIOC vendor?

Last edited by eKxR; 08-05-2006 at 01:39 AM.
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Old 08-01-2006, 03:34 AM   #6
Blaine B.
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Member#: 113050
Join Date: Apr 2006
Chapter/Region: W. Canada
Location: Edmonton,Alberta,Canada
Vehicle:
93 TSi AWD
White/Black

Default

Quote:
Originally Posted by eKxR
just went to speedtech today and Will told me they dont carry COBB stuff. Where should I get this stuff?

a NASIOC vendor?
I can probably help you out.
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