docgatorx8er

iTrader: (10)

Category: Engine - Power Adders
Price: $180
Private or Vendor Listing: Private Listing
Part Fits (you may select multiples): Series I
Location (US State/Canada/Int): OH
Item Condition: Used

Bought this on the forum for the race car several years ago. Never installed, it's still in the box it was shipped in.

The SpeedSource Pulley was one of the only ones proven to increase HP.

$180 Shipped in US OBO

"Mazdaspeed Motorsports sells a set, by SpeedSource, which may add some credibility to the claim since they probably run them on their RX-8's, it does say racing only though

Part No.
0000-01-8201
New Price: $491
Description
PULLEY SET, DRIVE AND ALTERNATOR
Notes
Main drive pulley and alternator pulley set for RX-8. Made of billet aluminum. These pulleys add 8-10 horsepower on the dyno, due to reduced horsepower loss driving the alternator. No provision for A/C. For racing only. "