MagnaFlow D-Fit Muffler with NDT Resonator - Chevrolet Silverado 1500 / GMC Sierra 1500 4.3L/5.3L 2019-2026

The MagnaFlow 19533 D-Fit Performance Exhaust System replaces the mid-body section of the OEM exhaust on 2019-2026 Chevrolet Silverado 1500 and GMC Sierra 1500 trucks equipped with the 4.3L or 5.3L engine (excluding the factory performance exhaust option). The kit routes fast-flowing 3in mandrel-bent piping through a 14in straight-through performance muffler and an 11in NDT (No Drone Technology) resonator that minimizes highway cruising drone. Clamp-on inlet and outlet design enables easy installation. 409 stainless steel CNC construction is backed by MagnaFlow’s limited lifetime warranty.

Specifications

Documents: Installation Instructions (PDF)

This part fits:

Shipping

• In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
• Standard, expedited, and overnight options at checkout.
• Oversized items ship by freight and take longer.
• Backordered items ship as soon as stock lands — contact us for lead times.
• International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.

Returns

• 30-day returns on new, uninstalled items in original packaging with all hardware.
• Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
• Installed or used parts can’t be returned — confirm fitment before you install.
• Special orders and custom items are final sale.
• Email us for return authorization before shipping anything back.

Full details: Shipping Policy · Refund Policy