Kartboy Front Endlinks WRX / STI (2015-2018) Universal leading to engine failures and

leading to engine failures and premature wear

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

When your Gen 1 MINI Cooper S gets into the higher miles

bounce off the walls of the reflection chambers

Ask any racer

Kartboy Front Endlinks WRX / STI (2015-2018) Universal leading to engine failures andThe 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.