Supertech BMW S42/M42/M50/S50/M52/M54 Dual Valve Spring Kit - SPRK-H1005D-BM

Supertech Spring / Retainer kits are precision matched sets for a complete valvetrain overhaul. Developed for the performance enthusiast that wants the best the industry has to offer, Supertech Spring / Retainer kits are second to none in terms of performance, quality and value.

What's Included:

• 24 - Springs
• 24 - Retainers
• 24 - Seat Locators

• Seat Pressure: 94lbs at 35.70mm
• Open Pressure: 209lbs at 10mm
• Max Lift: 12.50mm
• Coil Bind: 20.70mm
• InnSpr.OD: 20.50mm
• InnSpr.ID: 15.50mm
• Rate: 11.50lbs/mm
• Kit spring: SPR-H1005D
• Retainer: RET-AUVE/T1
• Seat Locator: SEAT-BM60
• OutSpr.OD: 29.65mm
• OutSpr.ID: 21.85mm

• BMW 318i 1991-1995
• BMW 318is 1991-1995
• BMW 318ti 1995
• BMW 323Ci 2000
• BMW 323i 1998-2000
• BMW 323is 1998-1999
• BMW 325Ci 2001-2006
• BMW 325i 1992-1995,2001-2005
• BMW 325is 1992-1995
• BMW 325xi 2001-2005
• BMW 328Ci 2000
• BMW 328i 1996-2000
• BMW 328is 1996-1999
• BMW 330Ci 2001-2006
• BMW 330i 2001-2005
• BMW 330xi 2001-2005
• BMW 525i 1991-2005
• BMW 525iT 1993
• BMW 528i 1997-2000
• BMW 530i 2001-2005
• BMW M3 1995-1999
• BMW X3 2004-2006
• BMW X5 2001-2006
• BMW Z3 1997-2002
• BMW Z4 2003-2005