HKS Pulley Upgrade Kit For Use w/ GT2 Supercharger Pro Kit 2013-2021 BRZ / 2013-2016 FRS / 2017-2021 86

Here, you are looking at the HKS Pulley Upgrade Kit For Use w/ GT2 Supercharger Pro Kit 2013-2021 BRZ / 2013-2016 FRS / 2017-2021 86.

Details:

• Additional installation of a small diameter pulley to Supercharger Kit Ver.3, which is best matched with 91 octane gasoline, upgrades the fuel parts with E85 and leads to +90% more power compared to the stock.
• HKS S/C RON91: RON91 gasoline spec. 255HP (+80HP of the stock)
• HKS S/C E85: E85 fuel +PULLEY UPGRADE KIT + Fuel Pump + Injector. 320HP (+150HP of the stock)

This kit is designed exclusively as the optional part for 12001-KT003/KT004. If E85 or racing fuel is not used, the output may be lowered than the one with the standard pulley size.