Reprogrammed ECU, Shift Kit for GS400??

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babybash0309

02-22-2005, 10:57 PM

Does anyone know a company that provides reprogrammed ecus for the 1999 GS400? Also are there any shift kits for the tranny available and if so who makes them? If anyone has a Jet Performance Chip please let me know if they have noticed any considerable gains in HP and how well does it really work? Thanks

kazmaniandevil05

02-22-2005, 10:58 PM

no!

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