Peak & Hold Driver by Fueltech 4-channel low impedance injectors driver unit. Please Note: Billet Atomizer Injectors – Anything before serial # C300**** should only use the 4A/1A. This only applies to injectors manufactured before Nov. 2012. Features Current control driver for low impedance injectors4 channels Peak and Hold 8A/2A Controls up to 4 injectors with impedance below 1.5 ohms 8 FT Injectors 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 Applications Universal What’s In The Box? 1 – Peak and Hold Driver 1 – Operation and installation guide 1 – mounting kit (4 rubber mounts, 4 washers, and 4 nuts) 6ft – Peak and Hold unterminated harness (optional) 1 – FuelTech black carbon fiber sticker References Peak and Hold Manual Warranty Fueltech’s Standard Limited 1-Year Warranty