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Description
Holley Sniper EFI Hyperspark 2 Ignition Box # HO556-154Holley Sniper EFI Hyperspark 2 Ignition Box # HO556 154 Features: Direct replacement from previous model, can use the same harness and connector with new or existing HyperSpark installs Greater spark energy of 135mJ to 150mJ from idle to redline RPM (Based on components used) Powerful capacitive discharge of multiple sparks improves throttle response and engine combustion Updated processor and board for improved efficiency reducing heat and current
Holley Sniper EFI Hyperspark 2 Ignition Box # HO556-154
Features:
- Direct replacement from previous model, can use the same harness and connector with new or existing HyperSpark installs
- Greater spark energy of 135mJ to 150mJ from idle to redline RPM (Based on components used)
- Powerful capacitive discharge of multiple sparks improves throttle response and engine combustion
- Updated processor and board for improved efficiency reducing heat and current draw
- Filtered circuits preventing magnetic interference
- Built in protection against open coil, shorted coil, and open load scenarios
- Smaller size and weight for more mounting options
- Operates on many 7V-28V electrical systems
- 12 pin 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
4.0 ★★★★★
Based on 19 reviews
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Product Reviews
★★★★★ 5
Quality is amazing
Color: Black, Size: 14
My son 11 yo i purchased the size 12-14 fits perfectly . Quality is amazing. Great 3 piece suit. Everything included but the button up as expected. Will purchase again next year.
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Reviewed in the United States on May 16, 2026
★★★★★ 5
Boys Will Be Boys
Got this for my grandson and not only did I love it but he also looked so good in it!
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Reviewed in the United States on May 31, 2026
★★★★★ 4
True to size
Color: Black, Size: 8
I loved the Material of the suit
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Reviewed in the United States on December 9, 2025
★★★★★ 5
Bar
Color: Navy, Size: 18
Quality of suit was exactly as shown on line. Fits great.
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Reviewed in the United States on May 2, 2026
★★★★★ 5
Fixed perfectly.
Color: Light Blue, Size: 14
I bought this for my 12yo son, worked perfectly! I definitely recommend it!
He's 5"2 ,almost 98 pounds
I ordered size 14.
Great quality!!!
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Reviewed in the United States on May 16, 2026