MagnaFlow Secondary Underbody Direct-Fit Catalytic Converter - Chevrolet Express / GMC Savana 4.3L 2021-2023

This is the long underbody converter assembly for the 4.3 litre vans, measuring 46.5 inches overall with four sensor ports covering pre and post converter positions. Body and tubing are stainless steel over a ceramic substrate, and the outlet is a flange connection. It bolts in with no cutting or welding, and ships with two gaskets and a clamp plus inlet gasket and hardware. This is the federal EPA part.

Specifications

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