For those serious about RX7 performance, looking for more power and more precise tuning we offer the Haltech stand alone ECU. Designed with the Rotary in mind, the Haltech system controls all of the fuel delivery and ignition control you need and is EASILY programmable using a standard PC-Compatible laptop.

Experience the smooth operation of your Mazda RX-7 with our selection of Engine Control Modules (ECM), also known as Powertrain Control Modules (PCM) or Engine Control Units (ECU). We offer a curated range of OEM ECMs, each designed to enhance and maintain the sophisticated performance of your RX-7.

Stand alone ECUs are only recommended for the more advanced tuners, those with experience, with access to a dyno and a wide band air-fuel meter. The Power FC replaces the original Mazda computer completely and allows full control over fuel and ignition timing as well as cooling fans, rev limiterand more.

Stand alone ECUs are only recommended for the more advanced tuners, those with experience, with access to a dyno and a wide band air-fuel meter. The Haltech F10 system allows Closed Loop Idle Speed Control, Closed Loop 02 Correction plus 4 PWM Outputs. The F10 is capable of controlling 4 low impedance or 8 high impedance injectors.

Get your Mazda RX-7 ECU, PCM, and ECM programmed with a FREE Lifetime Warranty and FREE Shipping throughout the USA. Shop now and get the best replacement auto parts!

This Engine Computer also referred to as an Engine Control Module (ECM), Engine Control Unit (ECU) & Powertrain Control Module (PCM) is a guaranteed replacement for all 1994 Mazda RX-7 PCM models with a 1.3L engine size.

Mazda RX-7 ECM ECU PCM Repair & Return Service. All Years, All Engine Sizes. Contact SIA Electronics today at 800-737-0915

The New Adaptronic Plug-In Select ECU for the Series 4 RX-7 Fc3s (Both Turbo II and EGI) specifically for Turbo II and EGI models with a mechanical Oil Metering Pump. Featuring all the same awesome features that has made these ECU's so …

Refurbished ECU | NO PROGRAMMING REQUIRED! Compatible: 1992, 1993, 1994, 1995 Mazda RX-7. OEM Part Number: N3A7 18 881C / 079700-3876 (See description for more details)

NEW G4X Link of ECUs! Faster with advanced tuning features! The Link G4X RX7Link (S6) RX7S6X PlugIn fits the Mazda RX7 Series 6 while the S7 will fit the Series 7 (PLEASE SELECT THE CORRECT ECU FOR YOUR APPLICATION!). The ECU PCB fits discretely inside the original factory enclosure.