2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

Hiccup on my S5 TII swap into a S4 N/A chassis.

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Old Apr 23, 2026 | 02:33 PM
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Hiccup on my S5 TII swap into a S4 N/A chassis.

Can’t figure out a harness and ecu combo for the swap. I’m going standalone for sure, and id like to get a new harness, as I don’t have a TII one and the ones near me are 40 years old. Need advice on a good ecu + harness. I would like to run an Elite 1500 since it seems like it has the best support in terms of sensors and things of that nature. I don’t have a harness currently, and I’m honestly not too fond on running a 40 yr old harness for a big street port tII. However I can’t seem to find anywhere that sells harnesses for tII motors that plug and play with the elite 1500 or any ecus to be frank. And if I find one it’s in Germany and they won’t ship to me. I know there are tons of people who know way more than I do on here, please help lol
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