Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 10 - Jul 15
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Supertech BMW Dual Valve Spring | S42/M42/M50/S50/M52/S52/M54Super reliable valve spring kits highest quality, and always the best price! Supertech performance valve springs are made with premium Superclean Chrome Silicon Vanadium Steel Alloy for higher performance and durability. Computer designed to ensure that wire stress levels do not overpass the limits for long durability under extreme conditions and harmonics are well under control. Supertech Retainers are manufactured with high quality military
Super reliable valve spring kits - highest quality, and always the best price! Supertech performance valve springs are made with premium Superclean Chrome Silicon Vanadium Steel Alloy for higher performance and durability. Computer designed to ensure that wire stress levels do not overpass the limits for long durability under extreme conditions and harmonics are well under control. Supertech Retainers are manufactured with high quality military certified Titanium alloy, CNC machined for a tight fit that will ensure a long durability.Note: Priced Individually
Specs:
- Type: Dual Spring
- Seat Press: 67lbs @ 35.7mm
- Coil Bind: 18.5mm
- Open (Lift) Press: 192lbs @ 10.00mm
- Rate: 12.9lbs/mm
- Inner Spring: 22.2m OD / 16.8mm
- Max Net Lift: 17.2mm
- Outer Spring: 30.2mm OD / 22.2mm ID
Fits:
M50TU |
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M50TU |
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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
4.2 ★★★★★
Based on 2242 reviews
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Product Reviews
★★★★★ 5
Perfect for the occasion
Size: Small, Color: Purple
Fit was great and true to size. I am 5'6" 140 lbs. and wear 38S jacket. Ordered a small.
Bought this for a "Prom" theme party. Everyone commented on it. It's not a high quality garment. But for something like new years eve party or a night out in Vegas it's perfect.
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Reviewed in the United States on December 15, 2024
★★★★★ 5
Perfect
Size: Large, Color: Black
We got this for my son for prom last year and it's a beautiful jacket! No complaints.
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Reviewed in the United States on March 5, 2026
★★★★★ 5
Excellent!!!
Love it, have another color form this company
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Reviewed in the United States on August 5, 2025
★★★★★ 5
Great quality jacket
On stage presentation in this jacket was fabulous. Great quality. He did have to buy a larger size to get the sleeve length but a tailor fixed the shoulder to a perfect fit. Will buy again in another color.
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Reviewed in the United States on March 3, 2023
★★★★★ 4
Will reorder for largest size
Size: XX-Large, Color: Red Gold
Love the look but smaller than anticipated based on size chart.
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Reviewed in the United States on January 28, 2020