Renntech tune and speedshift?
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A Prius because I'm green
Renntech tune and speedshift?
Anybody have the Renntech speedshift installed in their car and have they had any issues with it? Or with the transmission since it was installed?
Is it worth getting with just a stage 1 and box tune?
Is it worth getting with just a stage 1 and box tune?
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2008 A8L, 2002 996TT X50, 2009 X5
I believe Benzgal's E55 has this programming - perhaps she can post some feedback for you.