SKU: 10368352316

PEAK & HOLD 8A/1A DRIVER

Sale price$107.55 Regular price$119.50
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Description

PEAK & HOLD 8A/1A DRIVERFEATURES Current control driver for low impedance injectors 4 channels Available in three current versions: 8A 2A 4A 1A 2A 0. 5A TECHNICAL DESCRIPTION Peak and Hold 8A 2A Controls up to 4 injectors with impedance below 1. 5 ohm 16 Bosch 160lb h (1600cc) injectors (4 per channel) 8 Siemens low impedance injectors (2 per channel) 4 MSD low impedance injectors (2 per channel) (with 2 ohms impedance per injector) Peak and Hold 4A 1A Controls up to 4

FEATURES


  • Current control driver for low impedance injectors
  • 4 channels
  • Available in three current versions:
    8A/2A 
    4A/1A
    2A/0.5A

TECHNICAL DESCRIPTION



Peak and Hold 8A/2A

  • Controls up to 4 injectors with impedance below 1.5 ohm
  • 16 Bosch 160lb/h (1600cc) injectors (4 per channel)
  • 8 Siemens low impedance injectors (2 per channel)
  • 4 MSD low impedance injectors (2 per channel) (with 2 ohms impedance per injector)

Peak and Hold 4A/1A

  • Controls up to 4 injectors with 1.5 to 3 ohms of impedance
  • 8 Bosch 160lb/h (1600cc) injectors (2 per channel)
  • 4 Siemens 83lb/h injectors
  • 4 MSD injectors (with 2 ohms impedance per injector)

Peak and Hold 2A/0.5A

  • Controls up to 4 injectors with 3 to 7 ohms of impedance
  • 4 Bosch 160lb/h (1600cc) injectors

Dimensions: 115 x 90 x 33mm

TO DETERMINE WHICH PEAK & HOLD YOU NEED

  1. Grab a multi-meter and select Ohms 200
  2. Touch the positive and negative leads of multi-meter together to measure resistance (record this number...i.e. measured 0.3)
  3. Then take the positive and negative leads from multi-meter and put on each terminal of the injector. Doesn't matter the order. Record this measurement
  4. Take the ohms measurement from Step 3 and then subtract the number you got in Step 2 (i.e. Step 3 4.8ohms - Step 2 0.3ohms = Total 4.5ohms)

High Impedance Injectors - Above 7ohms - No Peak and Hold Boxes are needed.
Peak and Hold 2A - 3ohms to 7ohms (Bosch 160lb/hr).
Peak and Hold 4A - Below 3ohms to 1.5ohms.
Peak and Hold 8A - Below 1.5ohms (Billet Atomizer*).
All low impedance Billet Atomizer Injectors manufactured after Nov. 2012 require 8A regardless of measured resistance.

*Billet Atomizer Injectors - Anything prior to serial # C300**** should only use the 4A/1A. This only applies to injectors manufactured prior to Nov. 2012.


CONTENTS OF PACKAGING


  • 1 Peak and Hold 8A/2A
  • 1 Operation and installation guide
  • 1 mounting kit (4 rubber mounts, 4 washers and 4 ¼” nuts)
  • 6ft Peak and Hold unterminated harness (optional)
  • 1 FuelTech black carbon fiber sticker

 

    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. 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
    SKU: 10368352316

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    Based on 14 reviews
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    J
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    Joe H.
    Whiting, US
    ★★★★★ 5
    Very Expensive
    Had one cylinder misfiring so replaced coil and spark plug. Runs fine now, but old plug looked shot after only 5 months so I think the coil was the problem. Really good plug so far but very expensive.
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    Reviewed in the United States on February 12, 2026
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    rkab8745
    Natrona Heights, US
    ★★★★★ 5
    A reliable set of spark plugs.
    They’re made in Germany, what else can you say
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    Reviewed in the United States on April 24, 2026
    A
    Verified Purchase
    Amazon Customer
    Carnegie, US
    ★★★★★ 5
    Work as well as the NGK's
    Bought for a 2016 Mazda 6, I had NGK's in it for 5 months and had misfires, didnt have the money to throw more NGK's at it for troubleshooting. Bought these to try and they work great so far.
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    Reviewed in the United States on April 29, 2026
    C
    Verified Purchase
    Christopher D. Bodirsky
    Draper, US
    ★★★★★ 4
    Faulty plug? Otherwise great set
    Definitely better than the old plugs that probably had 80k miles on them. The one star off is because I had a misfire after installing. Not sure if I damaged the plug or what, but a reinstall didn't fix the misfire. In my genius, I rushed to try to gap it and ended up breaking the iridium tip. Put the old plug into cylinder 3 (where the misfire was) and it was fine. Gonna have to get a new single tomorrow at my local shop, but a bit frustrating to get a misfire after install.
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    Reviewed in the United States on April 27, 2026
    B
    Verified Purchase
    Britincali
    Battle Creek, US
    ★★★★★ 5
    Upgrade from OEM
    After seeing a quite ludicrous $403 quote to change 4 spark plugs in a Mazda3 I decided to show my son how easy it is. These were an upgrade from OEM parts. They were gapped perfectly for the car. They took 20mins to fit and work fine.
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    Reviewed in the United States on February 11, 2026

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