Schoenfeld Headers Muffler Insert, 3.500" Diameter Collector, 3.000" Diameter Core, 4.000" Long, Steel, Natural SKU SCH-43035 $17.95 Quantity discounts available QuantityPrice (0)No Reviews yet Number of Pieces Item Custom Price Quantity -+ Add to Cart Details Lightweight 4" long mufflers insert into exhaust tubing or collector. Perfect quick fix when car is too loud. Details Back DetailsLightweight 4" long mufflers insert into exhaust tubing or collector. Perfect quick fix when car is too loud. Ratings & ReviewsNo reviews availableBe the first to Write a Review