Founded in 1979, Dinan is well established as North America’s premiere BMW tuner. In recent years Dinan has further expanded its portfolio to include other European marques such as MINI and Mercedes Benz. For all makes, Dinan develops, manufactures and markets a comprehensive line of high performance products and systems, distributed through a worldwide network of Authorized Dinan Performance Centers that include New Car Dealerships as well as Independent Service/High Performance facilities. The expansive dealer network coupled with Dinan’s industry leading warranty program, quality products and solid engineering have helped make Dinan a household word among driving enthusiasts that desire "performance without sacrifice."
| Make | Model | Submodel | Years | Engine |
| BMW | M5 | Base | 2018 | 4.4L / V8 |
| BMW | M5 | Base | 2019 | 4.4L / V8 |
| BMW | M5 | Base | 2020 | 4.4L / V8 |
| BMW | M5 | Competition | 2019 | 4.4L / V8 |
| BMW | M5 | Competition | 2020 | 4.4L / V8 |
| Part Type | Exhaust Resonator |
| WARNING CA Proposition 65 | WARNING: Cancer and Reproductive Harm |
