KW10210729 KW Street Comfort Kit Audi A4 (8E/B6. 8H. QB6) Avant + Convertible; Quattro; all

Supertech’s valvetrain 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 valvetrain kits are second to none in terms of performance, quality and value. This set includes spring, retainers, and new valves seats.

• OutSpr.OD: 24.4mm
• OutSpr.ID: 17.6mm
• InnSpr.OD: 21mm
• InnSpr.ID: 14.2mm
• Press.Seat: 75@36.5
• Press.Open: 155@10
• Max Lift: 12mm
• Coil Bind: 23.2mm
• Rate: 8ibs/mm
• Retainer: RET-BMN54-TI (5mm)
• Retainer: RET-BMN54-TE (6mm)