Hello I am new to this forum I have a L120A lawn tractor and it had a 20 hp Briggs and Stratton engine that locked up. So I found a guy not far from me that parts out John Deere mowers he talked me into buying a Kohler Command 17.5hp engine model CV491S. The problem is it didn't come with a head pipe or muffler this is the first time I have attempted replacing a lawn mower engine. So I didn't think about the exhaust being different. Anyway I have been looking all over the internet for the last 3 weeks to try to find the right exhaust that would work and have been unsuccessful. I have tried to contact the guy I bought the motor from and never calls me back, needless to say I am very frustrated. I was wondering if anybody could please point me in the right direction of where I could find exhaust for this motor so that I can use it. Thank you in advance.