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Old 04-23-2012, 08:14 AM   #10
Registered User
Join Date: Oct 2008
Location: Northern Michigan
Posts: 913
My Ride: 330i ZHP
Getting quality numbers for a tune is indeed a problem. I personally have the ESS tune but have seen no dyno numbers that show a before and after. The few I think I saw of AA showed no gains. I'd love to see some solid proof of the shark, or back-to-back proof of any tune for that matter.
2003 BMW 330i ZHP
ESS Twin Screw Stage 2 - Wavetrac - Headers - Magnaflow - BMW Performance Intake and SSK
Turner Motorsports Reinforcements and Spacers - Powerflex - StopTech

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