Originally Posted by TVT_DESIGN

Here's a dyno done with the Lightened Crank Pulley on a C55. This is the same pulley for the v6 that we offer.

http://www.mbworld.org/forums/showthread.php?t=248211

Gains should be about 60-70% of what the v8 shows. That's about 9-12RWHP through the power band and about 6 ft/lbs TQ. Plus better gas mileage, improved throttle response, smoother shifts, and an overall increased sense of happiness (may or may not occur in every customer).

We will offer the Crank Pulley and Underdrive Kit as a package deal for 775.00 shipped, which is a 24.99 savings.

PM me if interested in the package.