I recently purchased my 2007 550 from a fellow forum member. If you don’t know already, Dranged and I are best friends and I’ve put extensive seat time in his 550 that is equipped with a Sprintbooster. I was dead set on getting rid of the lag my car has that his doesn’t since his install.
I was going to get a sprintbooster until I read about this new product. Velocity.
I contacted Eric with PYSpeed about the current group buy.
The manufacturer was able to ship prior to the group buy ending. Very cool.
I was at work today when the FedEx guy walked in with a surprise.
Cracked it open to find a Velocity
Construction is solid., with OE connectors on the ends.
Installation –
I got home with high expectations of what this thing was going to do for me.
I grabbed a pick tool too to pry the cover off of the 5mm hex bolt.
Pull the bolt, and popped the accelerator pedal out within seconds
I popped the cable loose and connected the leading wire connector for the Velocity to the accelerator assembly
I connected the trailing wire to the car side of the wiring
I put things back in, in the reverse order of disassembly.
I found some body molding tape in the tool box. Took one strip of this stuff to make it nice and solid. 3M tape rocks! Cause it’s from Minnesota.
I think this install took ten minutes due to it being my first time pulling things apart in here and the fact I took a few pics for you guys.
I didn’t tuck wires inside panels, as I’ll need to take this out in the next few weeks because I’m taking my car in for service. When I get the car back I’ll take a few minutes to hide the wires
First thoughts –
No check engine lights or sprint booster blues running conditions that I’ve read about on this forum
In fact, nothing at all. Seemed like there was nothing new. The unit was off. I pressed the power button to be pleasantly surprised that the accelerator was very slightly different.
I needed more. By going to level 2 there seemed to be no lag in the pedal. Nice. I think this will be a great everyday mode for me.

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