Pay in installments of $90.62 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Aug 1 - Aug 6
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Holley Boost Control Solenoid # HO557-201Holley Boost Control Solenoid # HO557 201 Boost Control Solenoids, Dual Solenoid Style, Electronic, Kit Boost Controller Type: Electronic Boost Controller Style: Dual solenoid Adjustable: No Wastegate Type: Electrical Quantity: Sold as a kit. Holley Boost Control Solenoids Holley boost control solenoids are designed for optimal performance when using the boost control function of Holley EFI. Some setups require two solenoids and some require one.
Holley Boost Control Solenoid # HO557-201Boost Control Solenoids, Dual Solenoid Style, Electronic, Kit
Boost Controller Type:
Electronic
Boost Controller Style:
Dual solenoid
Adjustable:
No
Wastegate Type:
Electrical
Quantity:
Sold as a kit.
Holley Boost Control Solenoids
Holley boost control solenoids are designed for optimal performance when using the boost control function of Holley EFI. Some setups require two solenoids and some require one. They're driven by a Pulse Width Modulated (PWM) output of the ECU. It is advised NOT to use the PWM+ outputs on a Holley HP ECU, but rather use the PWM- outputs. If you have a Holley Dominator ECU, use either the PWM- outputs or a PWM+ output on the J2B connector.
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 7 reviews
Sort
Product Reviews
★★★★★ 5
It is really well made and perfect for travel!
It is just like the picture and it is lovely. Plenty of room and under the tray it is large enough for changes with pendents.
It is perfect for a girl and will be perfect for the amount of jewerly you take when traveling.
Thank You!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 3, 2025
★★★★★ 5
Very nice little box.
This is a great little jewelry box. I don’t have tons of jewelry right now, so this fits everything well, and the leather-look material is very nice. I like the simple design and organization, and it is a nice size to travel with. It looks really pretty sitting on my dresser and goes with the aesthetic of my home well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 8, 2025
★★★★★ 4
Pretty
Very nice simple jewelry box. My only issue is spacing to put necklaces is a bit tight, but there is plenty of room in this little guy. I put a lighter next to it, for size comparison.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 15, 2026
★★★★★ 5
Great item
Great item
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 4, 2026
★★★★★ 5
Chic little box
Perfect size for area. Holds plenty small jewelry items. Secure closure.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 29, 2026
recommand products
Valentine's Day Burlap Wired Ribbon 2 Rolls 12 Yards Heart Printed Love Ribbon Edge Ribbon 2.5 Inch Patterned Hearts for Favor Wrapping Wreaths Craft Prensent Wrapping Decorative Bow (Pink and White)
36.98
Stonebriar Decorative 11.7" x 10" Oval Antique White Metal Accent Wall Mirror with Attached Hanger, Country Rustic Decor for the Living Room, Bedroom, Bathroom, Hallway, and Entryway
52.04
3/8 x 1/4 Female 45 Union Elbow Swivel Adapter
10.25
OTOTO Nessie Ladle Spoon - Turquoise Cooking Ladle - Cooking Gifts - Use for Serving Soup, Stew, Gravy & Chili - High Heat Resistant Loch Ness Stand Up Soup Ladle
46.90
20 Male Pipe-20 Female Pipe-20 Female Pipe Street Tee
55.92