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Manley NexTek Series 1.500 OD .850 Lift Super Stock and Competition Eliminator Valve Spring Set

Marsoni M251S
Sale price$417.12
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Get it in 3 business days with 1 day shipping. Friday, May 29
Manley NexTek Series 1.500 OD .850 Lift Super Stock and Competition Eliminator Valve Spring SetFrom drag strips to short track and endurance circuits, the Manley NexTek series is engineered for serious racers. NexTek springs resist pressure loss and valve train degradation even in the most demanding race conditions. That means more consistent spring force deep into a run, reduced valve bounce, and improved overall stability for high RPM performance. Built to outperform and outlast in real world competition.
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
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4.5 ★★★★★
Based on 2022 reviews
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APTYP
Natrona Heights, US
★★★★★ 5
💯% Authentic NGK Made in Japan.
Got these for my 2016 Subaru Crosstrek. You can't go wrong with NGK, these are 💯% AUTHENTIC, and made in Japan, unlike other NGK plugs that may be sold by other sellers which could be made in Thailand. The Subaru Crosstrek is running like a brand new vehicle after I put these puppies in it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 23, 2025
B
Verified Purchase
Britton Home Improvement
Natrona Heights, US
★★★★★ 5
buy these!!
these are legit original NGK, superior plugs, will buy again
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Reviewed in the United States on May 4, 2026
A
Verified Purchase
Anonymous User
Grantham, US
★★★★★ 5
Worked like a charm
Worked like a charm. The box and packaging were adequate from keeping the gaps of the plugs from being squished.
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Reviewed in the United States on May 13, 2026
T
Verified Purchase
TKmps
Omaha, US
★★★★★ 5
Perfect!!
As I expected, no more to say only I'm happy I got it.
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Reviewed in the United States on April 29, 2026
T
Verified Purchase
Timothy Dettman
Boise, US
★★★★★ 5
Works great
Works great
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Reviewed in the United States on March 30, 2026

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