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- USA
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Ships within 48 hours · Estimated delivery Jul 14 - Jul 19
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Description
REGULATOR/DAMPER, EXTENDED RANGE 40-100PSI 12-1001REGULATOR DAMPER, EXTENDED RANGE 40 100PSI Fuel pulse dampers act in tandem with the fuel pressure regulator to further control the fuel pressure in an EFI system. They act to smooth out the pressure pulsations caused by the injectors opening and closing as well as the fuel pump operating. These pulsations happen so quickly that in many cases they can't be identified with an analog gauge but can cause issues with fuel delivery to the engine. Features:
REGULATOR/DAMPER, EXTENDED RANGE 40-100PSI
Fuel pulse dampers act in tandem with the fuel pressure regulator to further control the fuel pressure in an EFI system. They act to smooth out the pressure pulsations caused by the injectors opening and closing as well as the fuel pump operating. These pulsations happen so quickly that in many cases they can't be identified with an analog gauge but can cause issues with fuel delivery to the engine.
Features:
- Engineered to stabilize pressure pulsations caused by the injectors opening, ideal for applications with large fuel injectors and high volume fuel pumps
- Compatible with any fuel -- full anodized billet aluminum construction with stainless steel springs and fluorosilicone diaphragm
- Fittings included for damper/regulator?s and direct mount dampers
- 1/8" NPT port on body of damper/regulators and in-line dampers for easy installation of mechanical pressure gauge or pressure transducer
- Vacuum fitting and one foot of hose included with all dampers for vacuum referencing
- Assembled and tested in the USA
Specs:
| Adjustable | Yes |
|---|---|
| Brand | Holley |
| Emission Code | 3 |
| Finish | Anodized Black |
| Fuel Type | Gasoline / Ethanol / Methanol / E85 |
| Gauge Included | No |
| Gauge Port Included | Yes |
| Grade Type | Performance |
| Inlet / Outlet Size | 3/4-16 Female O-Ring (AN 8) |
| Inlet Gender | Female |
| Inlet Port Diameter | 8 AN ORB |
| Inlet Port Quantity | 1 |
| Inlet Type | 8 AN ORB |
| Maximum Pressure | 100Pounds per Square Inch |
| Minimum Pressure | 40Pounds per Square Inch |
| Mounting Bracket Included | Yes |
| Mounting Type | Inline |
| Outlet Gender | Female |
| Outlet Port Diameter | 8 AN ORB |
| Outlet Port Quantity | 1 |
| Outlet Type | 8 AN ORB |
| Port Quantity | 2 |
| Pressure Range | 40-100 PSI |
| Product Type | Fuel Pressure Regulator/ Damper |
| Rebuildable | Yes |
| Style | Billet Aluminum |
| Vacuum Port Quantity | 2 |
| Warranty | Limited 90 Day |
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
4.3 ★★★★★
Based on 653 reviews
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Product Reviews
★★★★★ 5
Comfy and Stay Put
Size: Medium, Color: (002) Black / Black / Halo Gray
These socks are honestly great. They’re super thin and light, so once you have them on, you kind of forget they’re even there. No bulky feeling in your shoes at all.
The best part is they actually stay on. I hate no-show socks that slide down after five minutes, and these don’t do that. The little grip on the heel really works, so you’re not constantly adjusting them all day.
They’re breathable too, which is nice if your feet run warm. They dry fast and don’t get that gross sweaty feeling. And there’s no annoying seam on the toe, so nothing rubs or feels uncomfortable.
Basically, they’re just comfy, stay put, and don’t cause problems — which is all I want from socks.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 16, 2026
★★★★★ 5
Perfect sucks
Size: Medium, Color: (001) Black / Black / Castlerock
Wonderful socks . The weight is perfect !! These do not slip when in a shoe they stay out !!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2026
★★★★★ 4
Amazing but quality changed
Size: Large, Color: (002) Black / Black / Halo Gray
Love these socks so much, been buying them for about 4 years now!! Not giving them 5 stars anymore because the quality is different and not as good, durable and thick as before.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 10, 2025
★★★★★ 5
The best no show socks
The only no show socks I have ever found that do not slide down. These are very comfortable and the extra tab on the back provides comfort by keeping shoes from rubbing the back of your foot. The top of the sock also comes up high enough to cushion the top of your foot all while still remaining hidden while wearing tennis shoes or even with my hey dudes.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 30, 2025
★★★★★ 5
Great quality and fast shipping
Size: Medium, Color: (001) Black / Black / Castlerock
These socks are tight but after the first wash and dry , they fit perfect and NEVER slide off , ordered a second pack
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 24, 2026
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