[naoaki]

The other day I replaced my 335i exhaust pipe with a full straight product. AR design ** is also installed. I finished the work and started the engine and noticed a bit of blue smoke. Stepping on the gas pedal will increase blue smoke. I think that it will increase especially when the number of revolutions decreases. It did not go out at the time of stock exhaust. The N54 seems to have many blue smoke problems when it comes to full straight exhaust. By the way, Turbo was replaced with upgraded Turbolab two years ago. PCV is also replaced with RB external system (head port plug is not used). Is there any solution? Thank you in advance for all the answers.