Old Rotor said:I had a '74 RX-4(it was my third rotary,now I'm on my seventh a RX-8)..........none were available anymore (it was 4 years old). It cost $750 at the time to get done. It was one that they put in alot of Japanese cars, not OEM. I HATED how it made the front end feel so heavy! I would not recomend it as it will not keep it orginal and bring down the value of such a nice car. I saw your other post....that is a nice find....store it...dont ruin it!