Kartboy Front Endlinks WRX / STI (2015-2018) Hyundai Perrin has seen 5-7 horsepower

Perrin has seen 5-7 horsepower gains in conjunction with their catback exhaust

R60 2011-up Countryman S (part number MSPE15)

Blow Off Valve Connection

or doing a full engine swap

Each charge pipe includes 1/8" NPT bungs for connection of methol feed

Kartboy Front Endlinks WRX / STI (2015-2018) Hyundai Perrin has seen 5-7 horsepowerThe 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.