Late Model Modifications That Work!
Jim's Performance has experience in updating early model cars to the latest powertrains that GM has to offer.
This includes grafting of the wiring harness to an existing harness and using programmable electronics where needed.
We also supercharge port fuel engines and convert stack type injection systems to electronic injection.We also rework factory LT1 harnesses and
re-program Flash type PCM's when needed.
Custom Built TPI Harnesses - $295.00 and up
Commander Programmable Computer - $640.00
24#/hr Injectors New - $281.00
Bypass VATS as low as $100.00
Rework a 94-95 LT1 Harness $250.00
Convert Existing Harness to a DFI Harness - $150.00
Convert TBI Harness to a TPI Harness Trucks & Astros - $250.00
Flash PCM $200
PROMS Available With NO VATS - $189.00 and up