i have a DP ECU for my S4 its much better than standard ECU with the Modified airbox , K&N filter and Termis but its still not as good as the PC3 with custom maps power and torque are similar but PC3 is Smoother and better at low speed running ,, however i am also certain that DP ECU cab be remapped and improved on if You can access the right tuners .
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MONSTERMAN
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