Introducing the SLP 25% Underdrive Pulley/SFI Harmonic Balancer for the 5.7/6.1L! New 25% underdrive balancer for 2005-2009 5.7L/6.1L Dodge Charger/Magnum/300C incorporates a number of high quality features you won't find on any other aftermarket unit and makes up to 9 additional rear wheel horsepower and 10 ft-lbs of rear wheel torque over the stock crankshaft pulley. Pulley features are a pair of extra tall belt retention walls that eliminate the belt slippage issues common with other balancers. Other unique design strengths include a 100% steel construction (other brands use aluminum), integral timing marks and built in puller mounting threads. Includes detailed installation instructions. Features: Up to 9 Rear Wheel Horsepower Increase Up to 10 ft-lbs. Rear Wheel Torque Increase Extra-tall belt-retention "walls"-no more thrown belts! 100% steel construction Lighter than the stock balancer Integral timing marks and puller-mounting threads Does not cause false knock retard or erratic power-curve dips Here is the Dyno Graph from SLP BMC Performance has these available to ship now. Here is the link to order! http://www.bmcspeedshop.com/product_p/100235.htm If there is enough interest we may be able to put together an introductory group buy, so post up! Will not work on 2009 5.7L Hemi
Has anyone heard any feedback or testing on this product? I wouldn't mind freeing some HP/TQ up, but not at the cost of functionality of other power sources.
I think Josh at HHP said it does reduce some of the drive to the accessories but was too new to determine how much and whether it adversely affected things. AC is a must haha.
Bump for lower pricing...now 209.88!!! http://www.bmcspeedshop.com/product_p/100235.htm Save $40.00!!!
Just a bump for a great mod. These are in stock and we also carry the replacement Bolt and smaller serpentine belt needed to run the pulley! http://www.bmcspeedshop.com/product_p/100235.htm
Does anyone know how much labor most shops would charge to install one of these??? How much labor is involved? Thanks.
Just wanted to take a moment and say thanks for great customer service. I am impressed on how quickly BMC handles there orders. Hope to do business again soon. :bye:
