BARKER’S RAPTOR 700 FULL EXHAUST TEST
Plenty of power
— By the staff of Dirt Wheels —
We have tested quite a few exhaust systems from Barker’s Performance, including a Raptor 700 dual exhaust. This time around we got our hands on the new single full system with a cylindrical muffler instead of their well-known oval style. We chose to have blue-and-yellow accent parts included on the system and ordered up an EHS Fuel Controller (for closed-course racing only), along with a spark arrestor. The complete setup goes for $844.
CONSTRUCTION AND INSTALL
This Barker’s system is made from stainless steel and machined aluminum for durability and resistance to rust and weather. The muffler is 14 inches in length with an aluminum exhaust tip that comes in your choice of black, blue, red or a polished finish. The muffler mounting clamp is offered in the same colors as well. The stainless steel header pipe isn’t stepped for a claimed more even increase in the power range and has a welcome aluminum heat shield mounted to it.
The install of the $599 full exhaust system was simple and took less than half an hour. We removed the stock muffler by loosening the header to the muffler clamp, then removing the two muffler mounting bolts. After that we removed the stock header nuts and set those aside for reuse. To start the install of the Barker’s system, we loosely installed the new header. Next, we removed the rear grab-bar mounting bolt that is closer to the front of the Yamaha.
After sliding the muffler mounting clamp onto the muffler with the tab facing the Raptor, we slid the muffler into the header pipe and then loosely mounted the clamp, with the included mounting bolt, loosely onto the Raptor. Next, we utilized our Motion Pro heavy-duty spring hook tool to install the mounting spring from the header pipe to the muffler. Then we tightened down the header pipe by turning the nuts a few turns at a time, making sure to alternate between the nuts for an even tension to proper torque specs. And last, we tightened down the muffler mounting bolt.
In order to install the EHS fuel controller, you must remove the front plastic, seat and gas tank in order to get to all of the proper components. We then followed the included instructions to connect the controller to the Yamaha before reinstalling the parts we removed.
PUTTING DOWN THE POWER
This exhaust was designed for a fairly stock engine with minor changes to the fuel system and intake system to gain Barker’s advertised eight-horsepower increase. Once we installed the EHS fuel controller and the exhaust, we also removed the air intake lid. The engine requires more air combined with more fuel to get more power with the Barker’s system. The EHS controller comes set up with a good tune that only needs minor adjustments to make sure your engine is running properly.
We fired up the Raptor 700 and the exhaust note was potent. Barker’s systems are known for their rich, throaty tones that are quite loud; however, they produce more power instead of just make more noise (if you need to quiet it down, they offer a Quiet Core insert, as well as a spark arrestor screen). The power increase was immediately noticeable in the bottom end of the Yamaha’s power range. There was a lot more torque, it pulled hard through the midrange and topped off with us feeling like we had more than plenty of power to play with! A few of our test riders felt the system was a little too loud, but the others couldn’t get enough of the tone and grunt that the Raptor now had.
If you like a loud exhaust with a punchy tone that makes more power without costing over $1000 to obtain it, then this is a great system for your Raptor 700. It is easy to install, has optional muffler styles and comes with parts that can be ordered in up to four different color options. Go to www.barkersexhaust.com or call (989) 269-6921.