There is so much power ready to be released from tuning a 335i or 435i, the question is will such a car beat a stock M3/4? Also compare the sound of the cars at .\r<br>\r<br>Austin Yellow stock M4 VS Bmw 335i with Burger Tuning JB4 (map 2)and High Flow downpipes Race,Winner BMW M4 ,But not a very big gap. M4 = stock car .\r<br>\r<br>On this episode of Head 2 Head, Motor Trends Mike Febbo pits two tuner cars against each other. In one corner, the BMW 335i loaded with an BMW M .\r<br>\r<br>BMW M4 vs Loud tuned BMW 335i Ac Schnitzer.
