986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - Drone from the TopSpeed muffler in the 2.5

986968 · 10-26-2014, 08:41 PM

I have the 98' 2.5 and install the topspeed just now.
Similar to most of members, I have the drone starting from 2k RPM to 3k RPM.

I have read some other posts, and it seems that owner in 3.2 can replace the catless pipe from topspeed to reduce the drone with better air flowing.

However, with the 2 catalytic design in 2.5, there would be no catalytic at all after replacing the stock cat with the catless pipe.

Thus, I would like to see any 2.5 owners had solved the drone before?

10-26-2014, 08:41 PM	#1
986968 Registered User Join Date: Sep 2013 Location: China Posts: 17	Drone from the TopSpeed muffler in the 2.5 I have the 98' 2.5 and install the topspeed just now. Similar to most of members, I have the drone starting from 2k RPM to 3k RPM. I have read some other posts, and it seems that owner in 3.2 can replace the catless pipe from topspeed to reduce the drone with better air flowing. However, with the 2 catalytic design in 2.5, there would be no catalytic at all after replacing the stock cat with the catless pipe. Thus, I would like to see any 2.5 owners had solved the drone before?