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Ships within 48 hours · Estimated delivery Aug 20 - Aug 25
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Description
Manley Subaru WRX/STi Valve Spring and Retainer Kit (w/o Valve Locks) (16 each)Discover the Manley Performance Valve Spring and Retainer Kit designed specifically for Subaru WRX and STi engines. This kit includes 16 high quality valve springs and retainers, engineered to provide optimal valve control and durability under high performance conditions. Crafted to enhance engine reliability and performance, these components are a perfect upgrade for enthusiasts looking to boost their car's power and efficiency. Manley Performance is
Discover the Manley Performance Valve Spring and Retainer Kit designed specifically for Subaru WRX and STi engines. This kit includes 16 high-quality valve springs and retainers, engineered to provide optimal valve control and durability under high-performance conditions. Crafted to enhance engine reliability and performance, these components are a perfect upgrade for enthusiasts looking to boost their car's power and efficiency.Manley Performance is renowned for their commitment to excellence and reliability in the automotive tuning world. With this kit, you receive precision-made parts that contribute to improved valve timing and reduced valve float, especially in demanding and high-revving environments. The kit excludes valve locks, allowing you to customize your setup further.
Installing this valve spring and retainer kit can significantly enhance the longevity and responsiveness of your Subaru WRX or STi engine, making it an ideal choice for motorsport applications or spirited driving. Whether you are upgrading for track performance or daily driving durability, Manley’s quality and expertise ensure your engine performs at its best.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.8 ★★★★★
Based on 22 reviews
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Product Reviews
★★★★★ 1
Some of the components are plastic
This is not a heavy duty application what so ever . One of the flanges broke . We do not recommend this product
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Reviewed in the United States on July 5, 2024
★★★★★ 2
Quality control lacking
One tee conector was missing. Nothing avaliable locally that fits.
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Reviewed in the United States on July 13, 2025
★★★★★ 1
It doesn’t stay in
The pipe keeps coming out. Not worth the money. Not sturdy to hold a top table.
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Reviewed in the United States on February 20, 2024
★★★★★ 2
Good finish, poor hardware.
Set screws are poor quality and are sometimes powdercoated on the exposed threads. Leads to striped hex sockets and inability to tighten properly.
Durable finish as evidenced by no visible damage after throwing parts across the shop in frustration.
Ended up running self tapping screws thru parts to complete assembly.
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Reviewed in the United States on February 26, 2024
★★★★★ 1
Kinda flimsy…
Thought the assembly was metal, it’s some kind of PVC.
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Reviewed in the United States on September 22, 2025