Sinister Diesel 4in. Inlet Universal Stainless Steel Muffler
Special Order
This part is still available to order. Once you place your order, we’ll submit it directly to Sinister Diesel, and they’ll ship it straight to you.
Delivery times can vary depending on the brand, so we can’t guarantee an exact arrival date. What we can guarantee is that we’ll stay on top of your order, monitor its progress, and keep you updated until it reaches your door.
Special-order items are typically not kept in stock by most retailers. By ordering through us, your order is placed directly with Sinister Diesel, assuring you get the part as quickly as possible.
Want to get an estimated delivery timeframe before ordering? Contact us through our contact page, and we’ll be happy to find out for you.
Couldn't load pickup availability
So your modified diesel truck is putting out the rich sound you want, except not where you want it: the cab. With the Sinister Diesel Stainless Steel Muffler, you can reduce the road drone in your cab, while maintaining that deep bellow from your exhaust kit.
- 4" Single Inlet/Outlet, 30" Overall length, Universal Fit for All Diesel Pickups, Long Lasting core you can rely on, High Density Packing, Reduce Cab Noise.

