After offering a whopping 384 horsepower upgrade for the 335i, Dinan has revealed their latest performance modifications for the BMW M5’s and M6’s 5.7 liter V10 engine. The M5 and M6 already produce a whopping 500 horsepower, but imagine the amount of acceleration an additional 128 horsepower can provide.
By adding High Flow Throttle Bodies, Free Flow Mufflers and a racing middle exhaust, Dinan gives the M5 and M6 a total of 628 horsepower with 482 lb-ft torque. Dinan doesn’t provide any 0-60...
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