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Supertech Honda K24Z7 Dual Valve Spring Kit
Supertech BMW S42/M42/M50/S50/M52/M54 Dual Valve Spring Kit
Supertech Honda H22 Dual Valve Spring Kit
Supertech Honda D16Z/D16Y8/D17 Single Valve Spring Kit
Supertech Honda B16/B18C Dual Valve Spring Kit (w/Titanium Retainers)
Supertech BMW M54 16 Dual Valve Spring Kit
Supertech BMW N54 Conical Spring Kit - Rate 7.25lbs/mm
Supertech BMW N54 24V 3.0L BMW N54 Conical Spring Kit (Use Factory Valve Stem Seal)
Supertech Ford/Mazda DURATEC 2.0L/2.3L Beehive Valve Spring Kit (Use OEM Retainer/OEM Seat)
Supertech Sea-Doo 4TEC Dual Valve Spring Kit
Supertech BMW S63 V8 Conical Spring Kit - Rate 83lbs (Ex) 80lbs (In)
Supertech VW/Audi 2.7T 30V 6cyl Single & Dual Valve Spring Kit
Supertech VW/Audi 1.8T 20V 4cyl Dual Valve Spring Kit
Supertech Toyota/Lotus Elise 2ZZ Single Valve Spring Kit
Supertech VW/Audi 2.0L FSI EA113 Single Valve Spring Kit
Supertech Audi 2.5T FSI/TFSI/EA113/EA888 Single Valve Spring Kit
Supertech VW 2.5L 5cyl 20V Single Valve Spring Kit
Supertech BMW S54 24V 3.2L Dual Valve Spring Kit
Supertech BMW S54 Dual Valve Spring Kit (w/SEAT-BMS55)
Supertech Nissan SKYLINE RB25 DOHC 24V (w/Hydraulic Lifters) Single Valve Spring Kit
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ACL 00+ Toyota 2ZZGE 1796cc Standard Sized High Performance w/ Extra Oil Clearance Main Bearing Set
ACL 01+ Honda 1.7L D17A Standard Size Rod Bearing Set
ACL 03+ Chrysler 345 5.7L Hemi V8 Standard Size Aluminum Tin Thrust Washer Set
ACL 03+ Ford/Mazda 4 2.0L/2.3L DOHC Duratec Standard Size High Performance Main Bearing Set
