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OK I was getting sick of the drone after 2 days. So i grabbed a big breaker bar and tightened all the clamps. I was surprised how much more I was able to tighten them with more leverage. I'd say the drone is 75% gone now. It is still really noticeable between 2,800 to 3,100 RPM's. Of course that's about 65 to 75 MPH in 5th gear. My next step is to install a baffle in one side. I'm not sure where i'm going to put it yet. I have a few more day until my new clamps get here.
Just to recap. I have a 98 base. 5 speed. One pair of cats in the mid pipes. Stock exhaust manifolds.
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1998 Porsche 986
Threaded Mode
