Trinity Racing has been offering products and services that create horsepower for the off-road industry since 1978. With 36 Years of incredible success, their new sole focus is to manufacture exhaust systems, big bore kits, intake systems, and turbo systems for the ATV and UTV industry. Trinity Racing's commitment is to provide superior customer service and produce the best products on the market. Replacement Quiet Core Insert for Trinity Racing Stage 5 Exhaust. Sold individually.