Does a 550i Reduction Pulley Kit Exist?
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My Ride: 08 550i, 6 Speed Manual w/Sport Pkg, Black
RPI Exhaust, Turner 15mm Rear Spacers, 20% Tint
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....and why the hell not?
Will someone please do the R&D to create the 10-14hp bolt on?
Cant believe it's not on someone's website...
Will someone please do the R&D to create the 10-14hp bolt on?
Cant believe it's not on someone's website...
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My Ride: 08 550i, 6 Speed Manual w/Sport Pkg, Black
RPI Exhaust, Turner 15mm Rear Spacers, 20% Tint
![Default](https://5series.net/forums/images/icons/icon1.gif)
My guess is they dont feel we would buy it. I'm going to look into it now.
BTW gains are real & with a V8 10-15hp is in order.
The gains on my E46 M3 were 10 hp - verified.
Now - if we got 15 guys to show intrest in a beta product....
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