Swap the factory cast pulleys for machined duraluminium units. Less rotating mass, freer revving, and a blue engine-bay accent.
Independent reviews of this product gathered from other stores and owner communities.
Steering wheel , GReddy Radiator , Odula intake , Extractors , OMP sheild , Brass gear stick bush , Alternator , GReddy pulley set , New gear stick boot , Magnetic sump plug with a lot more to come ! One of the nicest guys to deal with as well for parts and knowledge on Mazdas is next level !
Huge shout out to RX8 Upgrades for all the bling bits he's supplied so far for my series 1
Steering wheel , GReddy Radiator , Odula intake , Extractors , OMP sheild , Brass gear stick bush , Alternator , GReddy pulley set , New gear stick boot , Magnetic sump plug with a lot more to come ! One of the nicest guys to deal with as well for parts and knowledge on Mazdas is next level !
$270
This Mazda RX8 pulley kit from GREDDY TRUST replaces the OEM cast pulleys with machined duraluminium units engineered for the 13B-MSP Renesis. Lighter rotating mass reduces parasitic load on the engine, delivering a more responsive throttle feel and a freer-revving character.
It suits both a spirited street drive and a considered performance build. This kit suits Series 1 models only.
For rotary enthusiasts, the difference this RX8 pulley kit delivers is most apparent as the Renesis climbs toward the redline. Reduced rotational inertia lets the engine accelerate through the rev range with less drag pulling against it.
The sharper, freer-revving character of the RX8 becomes noticeably easier to exploit on a spirited back-road run.
The GENUINE MAZDA OEM Waterpump/Alternator and Airconditioning V-Belt Kit is the natural companion here. Replace the drive belts at the same service interval so the new pulleys bed in with fresh rubber. The R-MAGIC Super High Flow Water Pump extends this engine-bay refresh further, improving cooling flow through the same front-end components. Round out your Mazda RX8 pulley kit install by adding the GREDDY TRUST Oil Filter to keep the engine package cohesive and brand-consistent. Learn more about the full GREDDY TRUST range at the GREDDY TRUST official site.
Independent reviews of this product gathered from other stores and owner communities.
Steering wheel , GReddy Radiator , Odula intake , Extractors , OMP sheild , Brass gear stick bush , Alternator , GReddy pulley set , New gear stick boot , Magnetic sump plug with a lot more to come ! One of the nicest guys to deal with as well for parts and knowledge on Mazdas is next level !
Huge shout out to RX8 Upgrades for all the bling bits he's supplied so far for my series 1
Steering wheel , GReddy Radiator , Odula intake , Extractors , OMP sheild , Brass gear stick bush , Alternator , GReddy pulley set , New gear stick boot , Magnetic sump plug with a lot more to come ! One of the nicest guys to deal with as well for parts and knowledge on Mazdas is next level !
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Related RX8 Upgrades
This aluminium pulley kit is engineered specifically for the RX8 Series 1, covering 2003 to 2008 models. It is not designed for Series 2 cars, so confirm your build year before purchasing.
The GREDDY TRUST kit replaces the factory cast pulleys with machined aluminium units. The exact number and type of pulleys included are not individually listed in the available product data, so contact us if you need a full kit contents breakdown before ordering.
Lighter rotating mass reduces the parasitic drag the Renesis engine works against at every rev. With less energy consumed spinning the ancillary pulleys, the engine responds more freely, and that difference is felt most noticeably as you climb toward the redline.
Installing the pulley kit is a logical moment to inspect and replace the drive belt, since the belt must be removed to swap the pulleys. Fitting a new belt during the same job keeps the engine bay in a known-condition state and avoids having to revisit the work shortly after.
The pulleys are finished in blue anodising. Anodising is an electrochemical surface treatment that bonds the colour to the aluminium rather than sitting on top as paint, giving a durable finish that suits a purposeful engine-bay presentation.
The GREDDY TRUST pulley kit is engineered for Series 1 RX8 fitment, meaning the pulleys are designed to locate and tension correctly on 2003-2008 cars without modification.
The GREDDY TRUST Oil Filter is a natural companion if you want a cohesive GREDDY engine package for Series 1. The R-MAGIC Super High Flow Water Pump tackles cooling efficiency and suits the same engine-bay refresh job, making the combination a practical single-outage upgrade.
