Kartboy Front Endlinks WRX / STI (2015-2018) Universal ACT gives extra effort to

ACT gives extra effort to strategically slot XACT ProLite flywheels to lower inertia without sacrificing strength and heat dissipation

NOTE: The Alta pulley is not CARB legal and not for sale or street use in CA and CARB states

leading to engine failures and premature wear

5 inch diameter 304 Stainless Steel pipe tapering smoothly to 3

Ask any racer

Kartboy Front Endlinks WRX / STI (2015-2018) Universal ACT gives extra effort toThe Kartboy Front Endliks for the Subaru WRX STI have been designed to be direct replacements of your weak factory OEM units. The OEM units over time can become weak and flex which can hinder the performance to your vehicle. The Kartboy units are made from high grade aluminum, and will provide your vehicle with better feedback when cornering. These end links are one of the most embraced and popular upgrades because of the result to modification ratio.