986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - Installed TS catback, have drone, anything I can do?

heymanwatchthis · 10-09-2013, 04:09 PM

Hello all. I installed the Top Speed Pro 1 cat back exhaust. All my stock cats are still in place.

I have a loud drone between 2,500 and 3,100 rpm. Car is a '01S.

Anything I can do about it? Any hints to improve the drone? Everything else sounds good but the drone is quite loud and annoying, if I can get rid of it all is good.

I wonder - I used some steel about 1.5" long to lower the mounting bracket as it seemed high to me. I did not want to tilt it down with spacers. Wonder if the slightly less support from bracket contributes to drone?

Thanks!

10-09-2013, 04:09 PM	#1
heymanwatchthis Registered User Join Date: Jul 2013 Location: Asheville, NC Posts: 102	Installed TS catback, have drone, anything I can do? Hello all. I installed the Top Speed Pro 1 cat back exhaust. All my stock cats are still in place. I have a loud drone between 2,500 and 3,100 rpm. Car is a '01S. Anything I can do about it? Any hints to improve the drone? Everything else sounds good but the drone is quite loud and annoying, if I can get rid of it all is good. I wonder - I used some steel about 1.5" long to lower the mounting bracket as it seemed high to me. I did not want to tilt it down with spacers. Wonder if the slightly less support from bracket contributes to drone? Thanks! __________________ '01 986S: LN IMS, PedroBar, PSS9 coil-overs, underdrive pulley, 997 short shift, GT3 console delete, Crios muffler mod