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PSI uses state-of-the-art CNC equipment throughout the manufacturing process to ensure batch-to-batch consistency and valve springs that are held to the tightest tolerances in the industry. At PSI, all production processes are done in-house according to strict Quality Control procedures with each spring proudly made in the USA. All PSI springs are 100% load tested and set matched for the ultimate in customer convenience and satisfaction.
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PSI CT1225ML, Dual Valve Spring, OD 1.445in, 939lb PSI PSI CT1242, Dual Valve Spring, OD 1.580in, 513lb PSI PSI CT1242D, Damper Valve Spring, OD 1.580in, 513lb PSI
PSI CT1225ML, Dual Valve Spring, OD 1.445in, 939lb PSI
Usually ships in 1 business day
Regular Price: $21.26
PSI CT1242, Dual Valve Spring, OD 1.580in, 513lb PSI
Usually ships in 1 business day
Regular Price: $25.00
PSI CT1242D, Damper Valve Spring, OD 1.580in, 513lb PSI
Call for Availability
Regular Price: $25.00
Dual Endurance Spring 1.445" OD, 1.060" ID Outer, 0.775" ID Inner, 140lbs@1.950" seat pressure, 435lbs@1.200" Open Pressure Dual Circle Track 1.580" OD, 1.060" ID Outer, 0.835" ID Inner, 248lbs@2.050" seat pressure, 640lbs@1.270" Open Pressure Dual Circle Track 1.580" OD, 1.155" ID Outer, 0.755" ID Inner, 250lbs@2.050" seat pressure, 650lbs@1.270" Open Pressure
PSI CT1541ML, Dual Valve Spring, OD 1.510, 494lb PSI PSI CT1542ML, Dual Valve Spring, OD 1.580, 513lb PSI PSI CT1571ML, Dual Valve Spring, OD 1.590, 590lb PSI
PSI CT1541ML, Dual Valve Spring, OD 1.510, 494lb PSI
Usually ships in 1 business day
Regular Price: $37.50
PSI CT1542ML, Dual Valve Spring, OD 1.580, 513lb PSI
Usually ships in 1 business day
Regular Price: $37.50
PSI CT1571ML, Dual Valve Spring, OD 1.590, 590lb PSI
Usually ships in 1 business day
Regular Price: $37.50
Dual Circle Track 1.510" OD, 1.085" ID Outer, 0.790" ID Inner, 240lbs@2.030" seat pressure, 625lbs@1.250" Open Pressure Dual Circle Track 1.580" OD, 1.160" ID Outer, 0.835" ID Inner, 248lbs@2.050" seat pressure, 640lbs@1.270" Open Pressure Dual Circle Track 1.590" OD, 1.060" ID Outer, 0.835" ID Inner, 248lbs@2.050" seat pressure, 640lbs@1.270" Open Pressure
PSI CT1573ML, Dual Valve Spring, OD 4.550, 671lb PSI PSI CT1574ML, Dual Valve Spring, OD 1.510, 625lb PSI PSI CT1575ML-TCRE, Dual Valve Spring, OD 1.400, 559lb PSI
PSI CT1573ML, Dual Valve Spring, OD 4.550, 671lb PSI
Call for Availability
Regular Price: $37.50
PSI CT1574ML, Dual Valve Spring, OD 1.510, 625lb PSI
Usually ships in 1 business day
Regular Price: $37.50
PSI CT1575ML-TCRE, Dual Valve Spring, OD 1.400, 559lb PSI
Usually ships in 1 business day
Regular Price: $41.50
Dual Circle Track 1.550" OD, 1.100" ID Outer, 0.775" ID Inner, 220lbs@2.030" seat pressure, 743lbs@1.250" Open Pressure Dual Circle Track 1.510" OD, 1.085" ID Outer, 0.760" ID Inner, 180lbs@1.980" seat pressure, 680lbs@1.180" Open Pressure Dual Circle Track 1.400" OD, 0.995" ID Outer, 0.700" ID Inner, 150lbs@2.00" seat pressure, 625lbs@1.150" Open Pressure
PSI DR1247, Triple Valve Spring, OD 1.660, 750lb PSI PSI DR1248, Triple Valve Spring, OD 1.660, 744lb PSI PSI DR1249ML, Triple Valve Spring, OD 1.660, 725lb PSI
PSI DR1247, Triple Valve Spring, OD 1.660, 750lb PSI
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Regular Price: $22.50
PSI DR1248, Triple Valve Spring, OD 1.660, 744lb PSI
Usually Ships in 1 business Day
Regular Price: $22.50
PSI DR1249ML, Triple Valve Spring, OD 1.660, 725lb PSI
Call for Availability
Regular Price: $33.76
Triple Drag Spring 1.660" OD, 1.195" ID Outer, 0.630" ID Inner, 340lbs@2.070" seat pressure, 940lbs@1.270" Open Pressure Triple Drag Spring 1.660" OD, 1.195" ID Outer, 0.870" ID Inner, 375lbs@2.100" seat pressure, 1045lbs@1.200" Open Pressure Triple Drag Spring 1.660" OD, 1.195" ID Outer, 0.630" ID Inner, 385lbs@2.200" seat pressure, 1100lbs@1.200" Open Pressure
PSI DR1253RML, Triple Valve Spring, OD 1.630, 724lb PSI PSI DR1254RML, Dual Valve Spring, OD 1.520, 767lb PSI PSI DR1255RML, Dual Valve Spring, OD 1.520, 725lb PSI
PSI DR1253RML, Triple Valve Spring, OD 1.630, 724lb PSI
Usually Ships in 1 business day
Regular Price: $36.26
PSI DR1254RML, Dual Valve Spring, OD 1.520, 767lb PSI
Usually ships in 1 business day
Regular Price: $31.26
PSI DR1255RML, Dual Valve Spring, OD 1.520, 725lb PSI
Call for Availability
Regular Price: $31.26
Triple Drag Spring 1.630" OD, 1.180" ID Outer, 0.870" ID Inner, 440lbs@2.200" seat pressure, 1200lbs@1.150" Open Pressure Dual Drag Spring 1.520" OD, 1.070" ID Outer, 0.745" ID Inner, 350lbs@2.100" seat pressure, 1040lbs@1.200" Open Pressure Dual Drag Spring 1.520" OD, 1.070" ID Outer, 0.745" ID Inner, 445lbs@2.200" seat pressure, 1170lbs@1.200" Open Pressure
PSI DR1257RML, Dual Valve Spring, OD 1.070, 1000lb PSI PSI DR1261RML, Triple Valve Spring, OD 1.675, 767lb PSI PSI DR1262RML, Triple Valve Spring, OD 1.710, 900lb PSI
PSI DR1257RML, Dual Valve Spring, OD 1.070, 1000lb PSI
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Regular Price: $31.26
PSI DR1261RML, Triple Valve Spring, OD 1.675, 767lb PSI
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Regular Price: $36.26
PSI DR1262RML, Triple Valve Spring, OD 1.710, 900lb PSI
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Regular Price: $37.50

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Dual Drag Spring 1.570" OD, 1.070" ID Outer, 0.750" ID Inner, 410lbs@2.150" seat pressure, 1260lbs@1.300" Open Pressure Triple Drag Spring 1.675" OD, 1.195" ID Outer, 0.630" ID Inner, 525lbs@2.300" seat pressure, 1330lbs@1.250" Open Pressure Triple Drag Spring 1.710" OD, 1.210" ID Outer, 0.630" ID Inner, 515lbs@2.300" seat pressure, 1460lbs@1.250" Open Pressure
PSI DR1263RML, Triple Valve Spring, OD 1.675, 809lb PSI PSI LS1511ML, Beehive Valve Spring, OD 1.290, 380lb PSI PSI LS1512ML, Dual Valve Spring, OD 1.275, 408lb PSI
PSI DR1263RML, Triple Valve Spring, OD 1.675, 809lb PSI
Call for Availability
Regular Price: $37.50
PSI LS1511ML, Beehive Valve Spring, OD 1.290, 380lb PSI
Usually ships in 1 business day
Regular Price: $13.00

(4)
PSI LS1512ML, Dual Valve Spring, OD 1.275, 408lb PSI
Usually ships in 1 business day
Regular Price: $22.50
Triple Drag Spring 1.675" OD, 1.195" ID Outer, 0.630" ID Inner, 425lbs@2.400" seat pressure, 1355lbs@1.250" Open Pressure Single Beehive LS1/LS6 Spring 1.290" OD, 0.630" ID Outer, 130lbs@1.800" seat pressure, 370lbs@1.175" Open Pressure Dual LS1/LS6 Spring 1.275" OD, 0.935" ID Outer, 0.665" ID Inner, 130lbs@1.800" seat pressure, 395lbs@1.150" Open Pressure
   
 
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