GSC 4G63 Beehive Spring Kit (5040) NRG or naturally aspirated Impreza models

or naturally aspirated Impreza models

-Cast end tanks and in-tank diverter provide optimal flow through intercooler

Stock can Vary

A custom fuel line fitting is included for the factory fuel line

and pipes to deliver more power

GSC 4G63 Beehive Spring Kit (5040) NRG or naturally aspirated Impreza modelsThe GSC Power Division beehive valve spring kit for Evo and DSM includes 16 titanium retainers and 16 beehive valve springs. This set can be used for Evo 1 7 and Evo 8 9 if you are looking to replace the OEM retainers. 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 IN: 84 lbs @ 1. 590" EX: 90 lbs @ 1. 570" install height IN: 227 lbs @ 1. 149" EX: 233 lbs @