Tein EnduraPro Plus Shock Subaru WRX / STI 2015-2021 | VSSB0-B1DS2 Apparel A missing or poorly sealed

A missing or poorly sealed radiator cover allows incoming air to disperse throughout the engine bay rather than passing efficiently through the radiator core

If your Flex has amber reflectors

idles irregularly

In conjunction with ARP

Tein EnduraPro Plus Shock Subaru WRX / STI 2015-2021 | VSSB0-B1DS2 Apparel A missing or poorly sealedFitment Information: Subaru WRX VAG 2015 2021 Subaru WRX STI VAF 2015 2021 The TEIN EnduraPro PLUS shock absorbers are premium OE shaped replacements designed for enthusiasts who want to improve ride quality and handlingwithout altering their vehicles ride height. These dampers are engineered to work with factory or aftermarket lowering springs and offer a high level of comfort, durability, and performance. Equipped with TEINs exclusive Hydraulic Bump