Kooks universal round muffler with a 3 inch inlet/outlet and a 10 inch long body in polished T-304 aircraft-quality stainless steel. Handcrafted in the USA and dyno- and race-tested, it suits street, race, and off-road builds. Backed by a Limited Lifetime Warranty to the original purchaser.
Specifications
| Type | Universal round muffler |
| Inlet/Outlet | 3in |
| Body Length | 10in round |
| Material | T-304 polished stainless steel |
| Part Number | R300-10 |
| Warranty | Limited Lifetime |
| Fitment | Universal |
Documents: Installation Instructions (PDF)
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
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