A poorly fabricated or poorly installed inboard exhaust system can ruin your engine and cost you a lot of money in repairs. At Discount Inboard Marine, we stock inboard exhaust system components to ensure your ski boat exhaust is cooled and any engine noise is muffled. Shop bolts, service kits, exhaust risers and so much more when you shop at Discount Inboard Marine. Have a question? Reach out — we're committed to offering our customers the technical support and troubleshooting assistance they need.