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Have an Accel DFI 74046 unit along with a Fast Track Performance piggyback unit and factory ECU unit from 1991 Camaro Z28 5.7 V8. Includes the Calmap software, laptop interface cable, and the tuning manual for configuring software. Will even include a free DOS based laptop with the Calmap software installed if desired. The Fast Track unit allows the Accel DFI to plug into the factory ECU body / engine harness and allows the DFI to control the engine parameters. Everything else remains in the control of factory ECU. This setup is perfect for someone that is looking to add some upgrades to their engine setup and allows tuning without swapping/updating proms. Asking $300 for everything, shipping at buyers cost available as well.
Last edited by Steve Petroff; Sep 6, 2023 at 05:18 PM.
The Accel 6.0 boxes were solid for me. Still have a couple. The Fast Track Performance piggy bak harness was an awesome upgrade back in the day. I had one for my 88 IROC with MAF. I really wish Fast Track or someone else were making piggy back harnesses still. I see plenty of shops doing them for newer imports but won't touch the more simple older cars.
