Note: Our SR
pulley kits do not require you to remove the crank shaft
hub in order to install the main pulley ( like some other pulleys
) which is a very _difficult_ thing to do.)
lighter than stock pulleys !
Complete Pulley Kit
This pulley kit replaces the alternator, the water pump pulley and
the main pulley. They free up horsepower (With our SR Underdrive
Power Pulleys our Project RX-8
gained 12 horsepower.) due to being 45% lighter than stock
and by underdriving the crank shaft pulley, alternator and the water
pump to keep down the chance of cavatation.Our SR pulleys are also
larger than the competition's pulleys so the fan belts have a larger
surface contact area ( so our pulleys _won't slip_ on the
fan belt causing your rotary engine to overheat which is very common)
Available in strong 6061-T6 billet aluminum for years of trouble
free use. Complete kit with everything needed. A very easy horsepower
increase and nice looking addition to your 2004-2010 Mazda RX-8.
Simple to install with hand tools.
Complete Underdrive Belt Pulley Kit Includes: Alternator pulley,
waterpump pulley, main drive crank pulley , with 2 brand new fan
belts and all needed stainless steel hardware.
2004 - 2008 RX-8
2009 - 2012 RX-8