The EVO R series draws on Big Gun's rich heritage of making power. Their slip-on exhaust systems are handmade in the United States from high-quality stainless steel with hard anodized oval-shaped aluminum mufflers and a throaty tone that is sure to make even a grown man feel like a kid again. This tried-and-true series will save weight, add noticeable performance gains, and sound tremendously better compared to other stock components on the market.