I have for sale the tunnel extension and rear bumper (grab handle) off of a 2002 ski doo summit highmark 151. This tunnel can be used on all zx and rev chassis. This extension will turn your 136 into a 151 or your 121 into a 136. This is in great shape no bends or breaks. Need some pictures let me know. om or email me motto@firstcoop.com. looking to get $100 plus a little shipping
