Mazda RX-8 Underdrive Power Pulleys

+12HP

As seen in our Project Mazda RX-8

As seen in Turbo, Sport Compact Car and Modified magazine


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Dyno sheet with our NEW Underdrive Power Pulleys on it.

The Project RX-8 picked up 12 Horsepower with them.

Click dyno picture for larger view

 

( 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

(Discontinued 2015 Version)


This pulley kit replaces the alternator, the water pump pulley and the main pulley. They free up 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 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 2004-2010 Mazda RX-8. Simple to install with hand tools.

Our 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

Part #RX8-9G-SALE

$699

Sale $299

Only 1 left


2009 - 2012 RX-8

Part #RX8-10G-SALE

$699

Sale $299

 

( 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

(New 2017 Version )


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 2004-2010 Mazda RX-8. Simple to install with hand tools.

Our 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

Part #RX8-9G-K12-Black

Part #RX8-9G-K12-Blue

Part #RX8-9G-K12-Red

Part #RX8-9G-K12-Silver

$699

Sale $429


2009 - 2012 RX-8

Part #RX8-10G-K12-Black

Part #RX8-10G-K12-Blue

Part #RX8-10G-K12-Red

Part #RX8-10G-K12-Silver

$699

Sale $429

 

 


Click Pictures

45% lighter than

stock pulleys !

RX-8 Wide Grip Belt Complete Pulley Kit

(New 2017 Version )


This Wide Grip Belt Performance pulley kit is for the 2004-2010 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 2004-2010 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 , with 2 brand new fan belts and all needed stainless steel hardware.

2004 - 2008 RX-8

Part #RX8-11Wide-Black

Part #RX8-11Wide-Blue

Part #RX8-11Wide-Red

Part #RX8-11Wide-Silver

$799

Sale $449


 

2009 - 2012 RX-8

Part #RX8-12Wide-Black

Part #RX8-12Wide-Blue

Part #RX8-12Wide-Red

Part #RX8-12Wide-Silver

$799

Sale $449

 


RX-8 Pulley Belt Kit

All needed replacement

high quality belts for your SR

Underdrive Power Pulley kit

 

Part #RX8-9G-K12BeltKit

$139



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