In-stock at external warehouse. Continue to checkout for ETA.
Special Order Items
Special Order items are products not stocked at Stealth Auto’s warehouses, and are therefore only ordered from a
manufacturer after a customer places an order for them. These items are identified on toofastinc.com or
toofastinc.ca with a label below the price stating “Special Order”. Special Order items may be subject to
additional terms, restrictions, or fees regarding returns and order cancellations, as explained in our
Terms of Service page.
Description Looking for a plug and play kit for your GM LS engine? The HP ECU allows you to accurately control the fuel and ignition of your engine plus much more! Got a stock LS engine? Simply download a base map and you’re on your way. Got a turbocharged, nitrous fed LS engine on water/meth? This HP EFI kit can...
Looking for a plug and play kit for your GM LS engine? The HP ECU allows you to accurately control the fuel and ignition of your engine plus much more! Got a stock LS engine? Simply download a base map and you’re on your way. Got a turbocharged, nitrous fed LS engine on water/meth? This HP EFI kit can control that too! Stop re–flashing your factory ECU every time you make a performance modification. Get Holley EFI today!