Engine Management Systems

Are you planning on swapping an M20, M30, M42 or S38 engine into your e21? If so, these E21 engine swap harnesses are intended to make your engine ...

Are you planning on swapping a 24-valve M50, S50, M52, or S52 motor into your e21? These E21 engine swap harnesses are intended to make your engine...

Are you planning on swapping an E23 M106 motor into your e28? These E28 engine swap harnesses are intended to make your engine swap a much easier p...

If you plan on swapping in a 24 valve engine into your e28, our plug and play harness adapters are the easiest way to go. Installation Instructio...

If you plan on swapping in an M52TU, M54, or S54 engine into your e28, our plug andplay harness adapters are the easiest way to go.  Harnesses incl...

If you plan on swapping in an M60 or M62 (Converted to OBD1) engine into your e28,our plug and play harness adapters are the easiest way to go.  I...

If you plan on swapping in an M62, M62TU or S62 engine into your e28, our plug andplay harness adapters are the easiest way to go. Harnesses includ...

If you plan on swapping in a 5-Series engine from an E34 into your early E28 chassis, our plug and play harness adapters are the easiest way to go....

If you plan on swapping in a later model E30 engine into your 1984 or 1985 E30 chassis, our plug and play harness adapters are the easiest way to g...

If you plan on swapping a K-series (K20 or K24) engine into your E30, our plug and play harness adapters are the easiest way to go. These work best...

If you plan on swapping in a 24 valve engine into your e30, our plug and play harness adapters are the easiest way to go. Installation Instructio...

If you plan on swapping in an M52TU, M54 or S54 engine into your e30, our plug and play harness adapters are the easiest way to go.  Harnesses incl...

If you plan on swapping in an OBD1 M60 or M62 engine into your e30, our plug and play harness adapters are the easiest way to go.  Installation In...

If you plan on swapping in an M62, M62TU or S62 engine into your e30, our plug and play harness adapters are the easiest way to go. Harnesses inclu...

Plug-N-Play Standalone Engine Management System With the MegaSquirtPNP EMS, we've simply taken all of the wiring homework and labor out of the proj...

If you plan on swapping an N52 or N54 engine into your e30, our harness adapters are the easiest way to go. Harnesses include the OBD2 diagnostic p...

MS3Pro Plug-N-Play Standalone Engine Management System With the MS3Pro PNP EMS, we've simply taken all of the wiring homework and labor out of the ...

If you plan on swapping in a 24 valve engine into your e34, our plug and play harness adapters are the easiest way to go. Installation Instruction...

If you plan on swapping in an M52TU, M54 or S54 engine into your e34, our plug and play harness adapters are the easiest way to go. Harnesses inclu...

If you plan on swapping in an M62, M62TU or S62 engine into your E34, our plug and play harness adapter is the easiest way to go. The harness adapt...

MS3Pro Plug-N-Play Standalone Engine Management System With the MS3Pro PNP EMS, we've simply taken all of the wiring homework and labor out of the ...

MS3Pro Plug and Play for 1996-1999 BMW M3 E36 With the MS3Pro PNP EMS, we've simply taken all of the wiring homework and labor out of the project f...

OBD1/OBD2 to OBD2/OBD1 conversion wiring adapter harness. These adapters ensure that your OBD2 engine functions correctly in your OBD1 chassis, or ...

If you plan on swapping in an M52TU, M54 or S54 engine into your e36, our plug and play harness adapters are the easiest way to go. Harnesses inclu...