as i needed parts i kept track of what year and model vw they were originally used on. The LR company did not seem to be real consistant. We have never found a factory Parts Manual. I sent all my sales documentation to this site. I have an addon oil filter on mine. EMPI carb and exhaust. My EMAIL is GBIDICK@AOL.COM. Send me an email with LR in the subject and I will send you picture’s. I have a bunch on document’s that I have accumulated over the year’s. Got a lot of them from aa car club in Detroit where the car’s were built.