Looking for M performance at the price of a new television? Car tuner and performance parts maker Dinan announced ($2199) The Dinan Performance Engine Software Upgrade Package for 335 BMW models. Why spend tens of thousands of dollars swapping out parts when this 10 minute software upgrade can give you breath-taking performance gain from the stock 300hp to 384hp at 5700 rpm. Torque also increase to 421 lb-ft torque at 4300 rpm. This takes any 335 close to M performance territory and can be preformed at any of Dinan’s authorized dealerships. Dinan is so confident of their upgrade, they match the new car warranty coverage for up to 4 years or 50,000 miles, including the possibility of consequential damages.