MagnaFlow Universal Muffler 12588 - 5x11x22in Oval Straight-Through - 2.5in Dual/3in Center

The MagnaFlow 12588 is an XL oval straight-through performance muffler with a brushed-finish 5x11x22in body and a 2.5in dual inlet / 3in center outlet (Center/Dual) layout. Its free-flowing perforated stainless steel core wrapped in stainless steel mesh and acoustic fiber fill delivers MagnaFlow's signature deep exhaust note. The universal design allows flexible placement within your exhaust system; professional installation is recommended. CNC precision robotic manufactured with durable corrosion-resistant stainless steel, backed by MagnaFlow's limited lifetime warranty.

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