RZR4 Two Bros Exhaust Install

Screen Shot 2013-06-25 at 4.31.21 PMWelcome to the RZR4 Two Bros Exhaust Install. The full dual exhaust comes well packed , and the quality of this system is exceptional.Screen Shot 2013-06-25 at 4.31.43 PMThe first step in the exhaust install is to remove the plastic panel behind the rear seats that closes the engine compartment off from the passenger compartment.Screen Shot 2013-06-25 at 4.32.31 PMNext remove the springs holding the header to the muffler.Screen Shot 2013-06-25 at 4.32.44 PMRemove the two retainer springs that hold the muffler to the frame should be removed next.Screen Shot 2013-06-25 at 4.33.23 PMThere are four bolts that must be removed form the muffler bracket, two on the front of the bracket and two on the back of the bracket.Screen Shot 2013-06-25 at 4.33.52 PMOnce the muffler bracket bolts are removed from the header, simply slide the muffler toward the passenger side of the vehicle.Screen Shot 2013-06-25 at 4.34.12 PMRemove the muffler bracket retaining bolts located above the rear tire.Screen Shot 2013-06-25 at 4.34.55 PMRemove the six header flange bolts holding the header to the engine block.Screen Shot 2013-06-25 at 4.35.07 PMRemove the header from the vehicle.Screen Shot 2013-06-25 at 4.35.22 PMThese are the exhaust canister brackets that will hold the new mufflers to the chassis.Screen Shot 2013-06-25 at 4.35.34 PMBolt the exhaust brackets to the chassis as shown.Screen Shot 2013-06-25 at 4.35.45 PMThere is a fuel vent line that runs underneath the rear seat mount bar that runs just above the frame, it should be re-routed below the frame and zip tied to the frame or other hoses to prevent it from being burned by the new exhaust pipes.Screen Shot 2013-06-25 at 4.36.35 PMInstall rubber sleaved retaining bracket and zip tie to the hoses as shown.  This will keep the hoses from making contact with the new exhaust pipes.Screen Shot 2013-06-25 at 4.37.29 PMInstall header collars and flanges into the engine block.Screen Shot 2013-06-25 at 4.37.46 PMThese are the supplied exhaust tubes and hardware.Screen Shot 2013-06-25 at 4.37.53 PMInstall new exhaust pipes using supplied retaining springs.Screen Shot 2013-06-25 at 4.38.03 PMMake sure to pull hard on the exhaust pipes once all retaining springs are installed to make sure they are secure.Screen Shot 2013-06-25 at 4.39.20 PMInstall driver side exhaust pipe and secure retaining springs.Screen Shot 2013-06-25 at 4.39.34 PMLoosely attach slip tubes to the exhaust canisters.Screen Shot 2013-06-25 at 4.39.49 PMSecure using supplied boltsAttach slip tubes to exhaust.Screen Shot 2013-06-25 at 4.40.49 PMAttach muffler pipes to header pipes and secure muffler canisters to brackets using supplied bolts.Screen Shot 2013-06-25 at 4.41.13 PMLast, tighten X rings on the back of the exhaust canisters to pipes.Screen Shot 2013-06-25 at 4.41.25 PMRe-install the rear fascia and you’re done!  This system looks and sounds awesome, improves throttle response and horsepower across the entire RPM band, and can be installed in 2-3 hours.  All Two Brothers Exhaust systems can be modified with two different kinds of silencers, as well as different colored exhaust tips. For more information the Two Bros Dual Exhaust System, click here.

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