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Old 02-28-2005, 12:38 AM   #4
jefersun
Scooby Specialist
 
Member#: 37716
Join Date: Jun 2003
Chapter/Region: TXIC
Location: Houston, TX (sugarland, TX)
Vehicle:
2002 ej257 Black WRX

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Well i'm kind of weary about the gain of 2mph anyways, because i had race gas in and i was increasing timing and boost after each run. It certainly didn't feel any faster. I serouslly doubt that the 5 hp that a new muffler or no muffler at will give me will result in 2 mph more in a trap. It's nice to run 12.8s on pump on a quiet car, you should try it sometime. It's intentional that i have a stock muffler.
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