TRP Aftermarket Parts new line of exhaust mufflers, pipes and clamps come in aluminized and chrome-plated finishes. The new mufflers include an 18-month warranty and can reduce noise level by five decibels, the company says, to meet U.S. Environmental Protection Agency noise requirements. The new clamps use 304 stainless steel materials and have bands with pre-attached hardware with force bars, nuts and reaction blocks to eliminate tearing during installation and provide a better seal.