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Old 08-14-2003, 08:28 AM   #1
dopefish
Scooby Newbie
 
Member#: 40327
Join Date: Jul 2003
Location: Quebec, Canada
Vehicle:
2004 STI
Blue/Gold!

Default Losing HP with RFL ???

Hi ! Just installed the RFL-ti muffler on my STI,

it seems like I lost some HP. Is it something possible ? I didn't install the rest of the turbo back system, only the catback exhaust...

maybe it's just my senses...
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Old 08-14-2003, 08:44 AM   #2
Ziglabeu
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Member#: 4024
Join Date: Feb 2001
Location: Canada
Vehicle:
2004 impreza WRX STi
World Rallye Blue

Default

Did u reset the ECU ? if no do it pretty soon
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Old 08-14-2003, 11:12 AM   #3
dopefish
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Member#: 40327
Join Date: Jul 2003
Location: Quebec, Canada
Vehicle:
2004 STI
Blue/Gold!

Default

No I didn't reset the ECU. Disconect battery for 10-15 min ?

Also started unsing 10-15% mix of toluene cause I was pinging.

Now with new exhaust + toluene, no more pinging, but seems like I lost power around 3-4K. Seemed to pull harder before!
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Old 08-14-2003, 11:33 AM   #4
Ziglabeu
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Member#: 4024
Join Date: Feb 2001
Location: Canada
Vehicle:
2004 impreza WRX STi
World Rallye Blue

Default

When I reset the ECu I unplug the ground for half an hour. Then I pump the brake 10 sec then wait... Replug the ground the wait to the temp is at the normal level ( dont touch the gas pedal !! ) and then go give a very abusive ride and check the setup
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Old 08-14-2003, 12:58 PM   #5
STi&LT1
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Member#: 36645
Join Date: May 2003
Chapter/Region: MAIC
Location: Silver Spring, MD
Default

A free flowing exhaust is going to loose some mid range, but pick it up on the top...this is normal. Less Back pressure, less tq.
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