Hello, I have a 05 Crossfire base model Roadster with 225,000 miles on it and a failed engine and a warn clutch/transmission , great body and top and I have a 05 Limited Coupe parts car (due to frame issues) only 85,000 on engine and transmission, both of which are in good shape, both are manual transmissions.Trying to find out which parts will transfer from The Coop to the Roadster? Looking to trade out engine and transmission. Also door panels and seats. Base has manual seats and the limited has electric / heated seats. Any and all information appreciated as I love my Roadster and have never done this big of a job before.

 

Pretty sure engine & tranny are interchangeable door panels also should work but wait to someone with actual engine swap experience chimes in . Seats will work but I don't know if the wiring to control the seats and no button for heating . a lot of owners say the base seats are more comfortable

 

You can swap those engines and transmissions with no issues. You need not transplant the ECU or SKREEMs because you are not changing versions, as far as I know.

Changing seats is a bit more involved, as the Base car has no seat relay and may not have the wiring needed to power the seats - get in the car, yank out a seat, and see if the harness is there or not. If not, you can actually add the wiring needed without the trouble of replacing the entire harness.