2GRFE Wiring Harness for the SW20 MR2! Ready to drop a 2GR into your SW20 without pulling your hair out? This custom wiring harness takes the guesswork out of engine swaps by converting a Sienna 2GRFE harness to bolt right into your MR2 chassis. We've handled all the connector headaches, included drive-by-wire pedal wiring, and packed everything you need for a clean install. No more spreadsheets of wire colors or mystery connectors—just bolt it in and enjoy modern power in your classic ride. The easiest path to 2GR swap glory.
We offer this wiring harness in 3 different ways.
- You supply us with a good 2011-2016 Toyota Sienna 2GRFE engine wiring harness and we will convert it to work in the MR2. The harness does not need to be perfect, but it must be pretty well intact. If it's cut in half, we cannot use it. Feel free to email us some photos at sales@tcsmotorsports.com if you are unsure if your donor harness is usable
- We send you a complete harness, made from a used 2011-2016 Toyota Sienna engine harness. We source the donor harness and modify everything for you. You don't lift a finger
- We ship you a brand new wiring harness, made with all brand new wiring. This is not a modified stock harness like the other options, this is a complete harness from scratch. This does have slightly better appearance, as the wire routing is a bit cleaner than the oem harness is.
Typical turnaround on wiring harnesses are about 6-8 weeks, so please make sure to get your wiring squared away well before you are ready to do the swap, so you are not waiting on wiring if you order it last!
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