The Bosch Motronic ECU will be fighting the aftermarket boost controller for contol of the boost!A tap (leak) in the boost line to the wastegate will be perceived as a boost leak by the ECU and boost will be lowered to try and maintain the correct boost levels mapped out in the ECU.
The Bosch Motronic ECU control systems in Audis are very sophisticated compared to most Jap cars and cant be fooled so easily!
Get a good quality chip if you want more power.
The Bosch Motronic ECU control systems in Audis are very sophisticated compared to most Jap cars and cant be fooled so easily!
Get a good quality chip if you want more power.