HKS Valve Spring Set | Toyota Corolla GTS (85-91) / MR2 (85-89) (2201-RT004) Exclusive - 2012-2022 Fiat 500L including race-grade springs and OE-standard

including race-grade springs and OE-standard shocks

Made from premium carbon fiber

Muffler Body Shape: Round

and improved handling characteristics compared to traditional rubber bushings

HKS Valve Spring Set | Toyota Corolla GTS (85-91) / MR2 (85-89) (2201-RT004) Exclusive - 2012-2022 Fiat 500L including race-grade springs and OE-standardHKS Valve Spring Set Part #: 2201 RT004 Overview The HKS Valve Spring Set is a high performance upgrade crafted specifically for Toyota enthusiasts aiming to improve their engine's durability and responsiveness. Designed for the 19851991 Toyota Corolla GTS and the 19851989 MR2 with 1. 6L and 1. 5L engines, these springs help support higher engine RPMs and increased valvetrain stability. Whether you're building a high revving naturally aspirated engine