Mazda RX-8 Underdrive Power Pulleys

+12HP

As seen in Turbo, Sport Compact Car and Modified magazine

( 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.)

45% lighter than stock pulleys !

RX-8 Power 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 black, blue, red and clear anodized hardcoated lightweight and 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 2004-2006 Mazda RX-8. Simple to install with hand tools.

Our Complete Underdrive Pulley Kit Includes: The alternator pulley, waterpump pulley, main drive crank pulley kit.

Part #RX8-9G-K10-Black

Part #RX8-9G-K10-Blue

Part #RX8-9G-K10-Red

Part #RX8-9G-K10-Silver

$599

$369 Sale

( 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.)

45% lighter than stock pulleys !

RX-8 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 black, blue, red and clear anodized hardcoated lightweight and 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 2004-2006 Mazda RX-8. Simple to install with hand tools.

Our Complete Underdrive Belt Pulley Kit Includes: Alternator pulley, waterpump pulley, main drive crank pulley , stainless steel alternator nut kit with 2 brand new fan belts and all needed stainless steel hardware.

Part #RX8-9G-K12-Black

Part #RX8-9G-K12-Blue

Part #RX8-9G-K12-Red

Part #RX8-9G-K12-Silver

$699

$429

RX-8 Wide Grip Belt Complete Pulley Kit

This Wide Grip Belt Performance pulley kit is for the 2004-2006 high performance RX-8. It has a 25% wider pulley and 25% wider belt for extra grip with the high RPM and HP that a rotary RX-8 has. It replaces the alternator, the water pump pulley, power steering pulley and the main pulley. They free up horsepower due to being 45% lighter than stock and by underdriving the crank shaft pulley, alternator, A/C, power steering and the water pump to keep down the chance of cavatation. Our SR Wide Grip Belt Performance 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 black, blue, red and clear anodized hardcoated lightweight and 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 2004-2006 Mazda RX-8. Simple to install with hand tools.

( Note: Our SR Wide Grip Belt 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.)

Our Complete Underdrive Wide Grip Belt Pulley Kit Includes: Wide Alternator pulley, Wide waterpump pulley, Wide main drive crank pulley , stainless steel alternator nut kit with 2 brand new fan belts and all needed stainless steel hardware.

Part #RX8-11Wide-Black

Part #RX8-11Wide-Blue

Part #RX8-11Wide-Red

Part #RX8-11Wide-Silver

$559

$699

RX-8 Stainless Alternator Acorn Nut

This 304 stainless steel replaces the factory alternator nut. This is also a nice way to allow you to remove the ugly factory nut and replace it with a dressy one. They are available in 304 stainless satin brushed or polished . A very nice looking addition to your 2004-2006 Mazda RX-8.

$99

Part #RX8-9G-K12BeltKit

$79