Top Definition
mitsubishi's newest 2.0L turbocharged I4. depending on market, it's tuned anywhere from 260 to over 400 bhp (UK spec FQ 400). it is also used in the lancer ralliart, but it's detuned to around 240 bhp. a very reliable motor for a very awesome car.
the 4B11T powers the evo x and lancer ralliart.
by my evo is epic February 06, 2010
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