GSC 4G63 OEM Replacement Valve Spring Seats (1004) StopTech • 2004-2006 STi (w/ WRX

• 2004-2006 STi (w/ WRX Tumbler)

MAF adapter and your choice of coupler size to connect to your turbo

• Improved 60'/ET

APR carbon fiber radiator cooling plates for BRZ/FRS/86 reduce under-hood temps and channel air flow directly to the radiator

47508 *Discontinued* Rear

GSC 4G63 OEM Replacement Valve Spring Seats (1004) StopTech • 2004-2006 STi (w/ WRXGSC Power Division OEM replacement valve spring seat set for the 4G63 Evo and 1G 2G DSM. Perfect for replacing old seats when upgrading to a high performance spring kit like the GSC Beehives. Same thickness as OEM, so no spring pressure change when using these. Sold as a set of 16. Vehicle Fitment: Mitsubishi 4G63 1992 2006 Evolution I IX 1990 1999 Eclipse GST GSX 1990 1998 Talon TSi 1990 1994 Laser RS 1991 1992 Galant VR4 Includes: (16) Valve Spring