Black Widow Exhaust Big D – Diesel – 7.5″ Round (BWBIGD)

The Black Widow Exhaust Big D – Diesel – 7.5″ Round (BWBIGD) is purpose-built for diesel trucks and large-displacement vehicles demanding aggressive tone and unrestricted exhaust flow. This high-performance muffler features a 7.5-inch round body and bi-directional flow design, delivering Black Widow’s signature deep exhaust note without compromising power. Constructed from durable 409 stainless steel, it withstands harsh operating conditions while providing consistent performance. Ideal for custom setups, the Big D Series offers variations in inlet sizes to accommodate a range of diesel applications.

Features and Specifications:

• Body Size: 14 3/4″ x 7 1/2″
• Overall Length: 21 3/4″
• Inlet/Outlet Length: 2″ per side
• Material: 409 Stainless Steel
• Inside Diameter Options: 3.5″, 4″, 4.5″
• Flow Direction: Bi-Directional
• Muffler Dimensions: Approx. 22″ length x 7.5″ width
• Sound Profile: Aggressive, throaty exhaust tone.
• Construction: Built for durability and performance.
• Fitment: Universal design; not a direct OEM replacement.
• Installation: Professional installation recommended.
• Warranty: Covered by Black Widow’s Lifetime Limited Warranty.