Type 296 Spark Arrestor. The Type 296 Spark Arrestor is specially engineered with an internal metal baffle, chambers and sound absorbing materials for a muffled exhaust sound and no loss of motor performance. The primary difference between the Type 296 Silencer and other Pro Circuit exhausts is the longer canister designed to lower the noise level to within legal limits. The desired sound level is at or near 96dB on most models. A functional spark arrestor that meets U.S. Forest Service standards while maximizing performance. Internal metal baffle, chambers, and sound absorbing materials. Dynamic design eliminates the chance of a spark leaving the exhaust system. Longer canister design keeps noise levels to a minimum. FIM-approved 304 stainless steel end cap and intake tube. Silencer body is made from extruded 6061 T-6 aluminum to reduce weight.