Arizona Speed & Marine is the leader in electronic fuel injection for automotive, marine. We offer components to complement your existing EFI system or we can provide complete systems.

Electronic fuel injection allow us to control several parameters including fuel delivery, spark timing, and engine operating temperature. These parameters are "read" by the computer through the use of several sensors that monitor engine operations and functions.

Because of the strong partnership with manufacturers we can offer quality products at affordable prices

AZ Speed's Current Deals

ASM LT-1 & Ramjet 502 Billet Throttle bodies are on sale!

58mm - $425

Monoblades - $450

Take advantage of these great deals while supplies last

Delphi MEFI 4B ECU's

If you're interested in obtaining re-calibration of your Marine or Ramjet ECU, please download our ECU Calibration form here and send it in with the ECU.

Click Here for our MEFI ECU Calibration Form

Our Partners

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ECU Calibration for Marine & Ramjet engines
ECU Calibration for Marine & Ramjet engines

F.A.S.T. Air Fuel Ratio Monitor
F.A.S.T. Air Fuel Ratio Monitor

LS1/LS2/LS7 Fuel Injection Wiring Harness
LS1/LS2/LS7 Fuel Injection Wiring Harness

Superjet "Rochester" Injection System
Superjet "Rochester" Injection System

Mercury Adjustable Fuel Pressure Regulator Kit
Mercury Adjustable Fuel Pressure Regulator Kit

Dyno Services

6313 W. Commonwealth Pl.
Chandler, AZ 85226

If you don't see what you're looking for please call or e-mail us.

Phone: (480) 753-0208 Fax: (480) 753-0216

Hours: 8am - 5pm M-F Mountain Standard Time