Exterior
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Supertech Performance SPRK-H1022D-VE Dual Valve Spring 123 @ 37.5 SPR-H1022D-VE + RET-NSR20/T1 + Fact Seat (to increase net lift it is necessary to machine inner spring boss)
Regular price $430.69Regular priceUnit price per -
Supertech Performance SPRK-2035-2022 Dual Valve spring 93 @37.5 SPR-2035-2022 + RET-NSR20/T1 + Factory Seat
Regular price $429.90Regular priceUnit price per -
Supertech Performance SPRK-H1020D/SR20 Dual Valve Spring 116@ 40.5 SPR-H1020D/SR20 +RET-NSR20/T1 + SEAT-SR20/6 (For DET use SEAT-H/N240 on Exhaust
Regular price $484.38Regular priceUnit price per -
Supertech Performance SPRK-H1021D/SR20 Dual Valve Spring 106@ 40.5 SPR-H1021D/SR20 + RET-NSR20/T1 + SEAT-SR20/6 (For DET use SEAT-H/N240 on Exhaust)
Regular price $525.87Regular priceUnit price per -
Supertech Performance SPRK-H1022D/SR20 Dual Valve Spring 95 @ 40.5 SPR-H1021D/2024 + RET-NSR20/T1 + SEAT-SR20/6 (For DET use SEAT-H/N240 on Exhaust)
Regular price $525.87Regular priceUnit price per -
Supertech Performance SPRK-H1002D/240 Dual Valve Spring 73@ 34.8mm SPR-H1002D + RET-H70/T1 + SEAT-H/N240
Regular price $473.52Regular priceUnit price per -
Supertech Performance SPRK-H100DR/240 Dual Valve Spring 84@ 34.85mm SPR-H100DR + RET-H70/T1 + SEAT-H/N240
Regular price $419.70Regular priceUnit price per -
Supertech Performance SPRK-H1000D/240 Dual Valve Spring 96@ 34.85mm SPR-H1000D + RET-H70/T1 + SEAT-H/N240
Regular price $473.52Regular priceUnit price per -
Supertech Performance SPRK-TS1015/NE Dual Valve Spring 84lbs @ 34.6 SPR-TS1015/NE + RET-M60/T1+ SEAT-EC1015
Regular price $509.21Regular priceUnit price per -
Supertech Performance SPRK-M1007BE-2 Behive Valve Spring 98lbs @37.2mm SPR-M1007BE-1 + RET-M65-TBE + SEAT-M65BE-2
Regular price $499.69Regular priceUnit price per -
Supertech Performance SPRK-M1007BE-1 Behive Valve Spring 80lbs @38.10mm SPR-M1007BE-1 + RET-M65-TBE + SEAT-M65BE-1
Regular price $499.69Regular priceUnit price per -
Supertech Performance SPRK-M1005D Dual Valve Springs 80 @ 39.6 SPR-M1007D + RET-M65/T1 + SEAT-M1007 + Valve Seal VS-H6.6
Regular price $430.66Regular priceUnit price per -
Supertech Performance SPRK-TS1015/MC Dual Valve Springs 76@ 34.80mm SPR-TS1015/MC + RET-TS60MA2 + SEAT-MC1015D + OEM ( Triple Groove)
Regular price $510.06Regular priceUnit price per -
Supertech Performance SPK-TS/DUR-DS Single valve spring Kit 55 lbs @ 35mm (16)SPR-TS1015 + (16)RET-TS5.5/T1 + (16)SEAT-DUR1+ OEM
Regular price $420.82Regular priceUnit price per -
Supertech Performance SPK-TS/DUR-D2 Dual valve spring Kit 70 lbs @ 36.20mm (16)SPR-TS1015 + (16)RET-TS5.5/T1 + (16)SEAT-DUR2 + OEM
Regular price $469.04Regular priceUnit price per -
Supertech Performance SPK-TS/DUR-D1 Dual valve spring kit 83lbs @ 35mm (16) SPR-TS1015 + (16)RET-TS5.5/T1 + (16)SEAT-DUR1 + OEM
Regular price $469.04Regular priceUnit price per