The 09 Chassis with the multiplex system and new exhaust are an exciting addition to the chassis. At first the multiplex was a little overwelming but the message center on the dash is a great tool for diagnostics. With this, trouble shooting is a snap. For those that don't know multiplex system is used by Volvo around the world to control the wiring with less wire.The exhaust thru the roof is great.The emissions are less and are passed up instead of to the next campsite or back to the radiator or worse your TOAD. As far as space lost with the exhaust thru the roof it allows for a larger radiator to control the extra heat generated by the engine to burn off more emission.

Scott