I have a 2017 Infiniti Q50 Premium I Have Megan downpipes, Rev9 exhaust, AMS HX, AMS flex fuel kit, AMS intakes, ADD W1 oil catch can, HKS BOV's. The car is tuned on ECUTEK and is pushing around 415hp/465tq.
Now for the problem, so I wanted to install upper downpipes without altering the tune...
I didn't found anyone in the forum talking about this issue so...
H E L P
2019 q50 (300hp)
bms heat exchanger
aem meth injection kit
3"exhaust no cats or whatsoever restrictions
currently ecutek tuned by mastuning (local tuning garage)
I have an...