sinister performance
08-10-2008, 09:34 AM
#1
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Car: 86 z28
Engine: 355 113 heads ported HSR hot cam
Transmission: th350
Axle/Gears: 7.5 342
sinister performance
has anybody used sinister performance for a custom chip.
http://www.gmtuners.com/
http://www.gmtuners.com/
Last edited by 400 hp; 08-10-2008 at 09:59 AM.
02-16-2010, 07:40 PM
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Car: 91 Formula
Engine: 350
Transmission: TKO450
Axle/Gears: 4.10
Re: sinister performance
He tuned my car and did a great job. I will defenatly use him again if I need either of my cars tuned.
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