Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 12 - Jul 17
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For Your Every Summer RSVP, with Code: SUMMER15
Description
Supertech Performance Dual Valve Spring Kit K20 K24 SPRK-H1019DType: Dual Spring Press. Seat: 97 @40. 40mm Max Lift: 17. 70mm Coil Bind: 22. 70mm Rate: 14. 8 lbs mm Retainer: RET K20A2 T2 Spring : SPR H1019D Seat Locator : SEAT H1020DS Engines Acura Base 4cyl 2. 0l K20A3 Acura Base 4cyl 2. 4l K24A2 Acura Base 4cyl 2. 4l K24Z3 Acura Special Edition 4cyl 2. 4l K24Z3 Acura Type s 4cyl 2. 0l K20A2 Acura Type s 4cyl 2. 0l K20Z1 Honda Base 4cyl 2. 0l F20C1 Honda Base 4cyl 2. 2l F22C1 Honda CR 4cyl 2. 2l F22C1 Honda EX
- Type: Dual Spring
- Press.Seat: 97 @40.40mm
- Max Lift: 17.70mm
- Coil Bind: 22.70mm
- Rate: 14.8 lbs/mm
- Retainer: RET-K20A2/T2
- Spring : SPR-H1019D
- Seat Locator : SEAT-H1020DS
Engines
Acura - Base 4cyl 2.0l K20A3
Acura - Base 4cyl 2.4l K24A2
Acura - Base 4cyl 2.4l K24Z3
Acura - Special Edition 4cyl 2.4l K24Z3
Acura - Type-s 4cyl 2.0l K20A2
Acura - Type-s 4cyl 2.0l K20Z1
Honda - Base 4cyl 2.0l F20C1
Honda - Base 4cyl 2.2l F22C1
Honda - CR 4cyl 2.2l F22C1
Honda - EX 4cyl 2.0l K20C2
Honda - LX 4cyl 2.0l K20C2
Honda - Mugen SI 4cyl 2.0l K20Z3
Honda - SI 4cyl 2.0l K20A3
Honda - SI 4cyl 2.0l K20Z3
Honda - SI 4cyl 2.4l K24Z7
Honda - SI 4cyl 2.4l K24Z7
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 2185 reviews
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Product Reviews
★★★★★ 5
Men's Mock Turtleneck T-shirt
Size: Medium, Color: White
I'm happy with the shirt, it was as advertised. Thanks for the fast service
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 21, 2026
★★★★★ 4
I always like turtlenecks
Size: X-Large, Color: Black
Very comfortable
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Reviewed in the United States on June 28, 2025
★★★★★ 5
Mark T T-shirt
Size: XX-Large, Color: White
I’m content nice quality good price works for me
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 12, 2025
★★★★★ 5
I like the shirt and the price was decent
Size: X-Large, Color: Black
Nice but I don’t like it on my neck. I’m giving it away as a gift.
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Reviewed in the United States on October 14, 2025
★★★★★ 1
Too small for the shown size.
Size: XX-Large, Color: Black, Size: XX-Large, Color: Black
I usually would buy XL size but in this case I bought XXL thinking since it's cotton it might shrink. But when I tried the T-shirt it was too small. My older XL sized T-shirt has 2 1/2" larger total shoulder width and 3" wider body width. See attached pictures. Length was also a bit shorter by about 1/2". I will to return it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 15, 2026