I was wondering if anyone has tried the underdrive power pulley kit or the lightweight flywheel that Turner is selling. If you have what are the good and bad that you have encountered with them. Thank You :dunno

Can't mix them together, will cause in unbalance in crank.

I have the UDP from EvoSport. They help acceleration through out the RPM band, the car feels sharper with improved throttle response.

I would go with the UDP over the flywheel just cause I think its more streetable.The flywheel is great, but harder to install, and noisy in neutral.

The gains on the Dyno are around 4 WHP for the UDP and 0 WHP for the lightweight flywheel.

The underdrive pulleys does not include a crank pulley, which is what you can't combine w/ lightweight flywheel.