Hi guy,

I know there are lots of exhaust threads so forgive me if I'm starting a new one but I really searched and can'T seem to find the answer

For those of you running Cat Bypass with sport exhaust, did it cause drone in the cabine? The reason why I ask is because I'm currently running a sport exhaust with 200cel cats and would like the car to be louder but am afraid of getting drone.

Can anyone share experience with Cat Bypass?


Thanks
Sam

 

I am Running a Tubi Race Exhaust for my 997TT with no cats. While its a perfect tone and growl there are speeds to avoid on the highway IMO. Around 70-75 there is a bit of cabin drone but topless or faster and its sounds fine.... I guess slower is an option too?

 

Thanks for your help