The McLaren Car Care Exhaust Decarbonizer is a fast and effective formulation that breaks downcarbon residues on exhaust tips in a few minutes.McLaren Exhaust Decarbonizer - 5L$95.00PriceQuantity*Add to CartBuy NowDilution RatiosDo not dilute. This product is formulated to be used pure. Directions1. Apply to the exhaust tips with a sponge. 2. Leave the product on the surface for two minutes. 3. Use a brush to remove the remaining carbon residues inside the exhaust tip. 4. Rinse and remove the remaining product with a clean microfiber cloth. 5. Repeat if necessary. 6. Avoid contact with plastics.