Competition Clutch 04-09 Subaru WRX-STi 2.5L Turbo Rigid Triple Disc Clutch Kit Electronic The ID1050x is the evolution

The ID1050x is the evolution of the ID1000

Install to OEM shim specs for intake and exhaust

and like the ID1300x

Kelford Cams recommends valve spring upgrade KVS1847-BT

which is fine for stock or street cars

Competition Clutch 04-09 Subaru WRX-STi 2.5L Turbo Rigid Triple Disc Clutch Kit Electronic The ID1050x is the evolutionTriple Disc Series Complete Clutch Kit by Competition Clutch. The CCI triple disc provides the most economical racing clutch for the active sport compact enthusiast. This ceramic triple disc comes with a 4140 forged flywheel and a 6061 T6 aluminum cover complimented with a 6150 steel diaphragm. These units are rated to hold 1000 to 1500hp . Specifications: Alignment Tool Included: Yes Disc Material: Ceramic Disc Style: Rigid Hub Flywheel Included: Yes