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Hello,
I got a 2020 c63s with downpipes, no mufflers, DME stage 2 tune.
I had CTS intakes and they kept sliding off, so I decided to put my stock intakes after a few weeks.
I know you cant trust the cars systems for 'boost', 'torque' and 'horsepower'.
Normally the boost guage is correct though.
But ever since I, I noticed my boost guage doesn't go all the way 100% it stoped at around 80-90%
Here's a picture.
My power feels good though, was just a concern of mine.
Also, I ordered Modal works intakes that people were recommending, waiting on those to come.
PS: I'm hoping those CTS intakes didn't **** my turbos in any way shape or form or that would be depressing.
I have this issue too , boost goes up to 100% but at the top end it drops to 90-95% almost full, this happened after I changed to larger turbo while on the same stage 1 ECU tune. Power and torque is same and car feels faster than before.
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