This Borla S-Type long-body muffler is developed for trucks and SUVs needing an extended body, with a slightly more aggressive tone than the larger 7.75in Touring version. It runs a 2.75in center inlet and 2.75in center outlet on a 6.75in diameter 24in body (29in overall). Un-notched necks are designed for weld-in installation. T-304 stainless construction with CFF acoustic packing and a reversible design.
Specifications
| Type | Specialty long-body muffler (S-Type) |
| Inlet/Outlet | 2.75in inlet / 2.75in outlet |
| Configuration | Center / Center - un-notched (weld-in) |
| Body | Round - 6.75in diameter x 24in body - 29in overall |
| Material | T-304 stainless steel - 100% welded - natural mill finish |
| Design | Reversible - Free Flow with CFF acoustic packing |
| Part Number | 401664 |
| Warranty | Million-Mile Warranty |
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
