SKU: 91178973994

Supertech Performance SPRK-TS1012/EC Dual Valve Spring 75Lbs @ 33.9mm SPR-TS1012/EC + RET-TS5.5/T5R + SEAT-EC1015

Sale price$264.74 Regular price$294.15
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  • USA
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Ships within 48 hours · Estimated delivery Aug 29 - Sep 3

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Description

Supertech Performance SPRK-TS1012/EC Dual Valve Spring 75Lbs @ 33.9mm SPR-TS1012/EC + RET-TS5.5/T5R + SEAT-EC1015Supertech Performance SPRK TS1012 EC Dual Valve Spring 75Lbs @ 33. 9mm SPR TS1012 EC + RET TS5. 5 T5R + SEAT EC1015 Supertech valve springs are made with premium Super Clean Chrome silicon Vanadium Steel alloy for the highest performance and durability at high rpm's. Computer designed to ensure that wire stress levels do not overpass the limits of stress defined in the diagrams of fatigue for long durability under extreme conditions. Computer software

Supertech Performance SPRK-TS1012/EC Dual Valve Spring 75Lbs @ 33.9mm SPR-TS1012/EC + RET-TS5.5/T5R + SEAT-EC1015

Supertech valve springs are made with premium Super Clean Chrome silicon Vanadium Steel alloy for the highest performance and durability at high rpm's. Computer designed to ensure that wire stress levels do not overpass the limits of stress defined in the diagrams of fatigue for long durability under extreme conditions. Computer software also allows us to make sure that the harmonics are well under control. The retainers are manufactured with high quality military certified Titanium alloy, CNC machined for a tight fit that will ensure a long durability.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 91178973994

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4.3 ★★★★★
Based on 19 reviews
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N. Carr
Massapequa, US
★★★★★ 5
Good 👍🏾
Special Size: Rigid, Size: 34W x 30L, Color: Black
Good item,just a bit to big
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 25, 2026
M
Verified Purchase
Mark
Grantham, US
★★★★★ 5
Great quality as always…
Size: 10.5, Color: Black Full Grain
Very stylish and comfortable boots. Same quality and well made boots that Johnston and Murphy is known for. Great finish and good price. Quick and accurate delivery!
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Reviewed in the United States on May 3, 2026
N
Verified Purchase
Nohemy Ruiz
Carnegie, US
★★★★★ 5
Boots
Size: 8.5, Color: Tan Full Grain
Buena calidad, el color es el de la foto
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Reviewed in the United States on March 15, 2026
B
Verified Purchase
Big FLO
Houston, US
★★★★★ 5
Great looking boots for evening wear
Size: 9.5, Color: Tan Full Grain, Size: 9.5, Color: Tan Full Grain
These arrived today and fit to size! They look amazing and so far seem comfortable. The quality seems good but time will tell as these are my going out type of footwear.
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Reviewed in the United States on February 22, 2026
G
Verified Purchase
Geoff G.
New York, US
★★★★★ 4
Top quality for the price but a little tight in the toe box
Size: 8.5, Color: Black Full Grain
A little tight around the toe box for me and I don’t have a particularly wide foot. But the quality is great and the look is awesome. Hoping they stretch out a bit with some wear!
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Reviewed in the United States on May 24, 2026

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