I just installed a custom dual Magnaflow system last week, and it sounds great at idle and most speeds. Here's the details: 2.25" pipes from stock cats back, Magnaflow #12568 muffler (dual 2.5" in/dual 2.5" out), 2.25" pipes to the rear side exit, and dual 3" polished tips. The problem is that I'm getting some serious drone at 1600-1900 RPMs under moderate load. I've searched the forums and it seems that some of the solutions for drone include cutting off 12" of the tailpipe, or just dumping it after the muffler. The reason I did this custom install is because I wanted the dual side exit like the Nismo exhaust, so I'm not willing to give that up. I have two questions for the exhaust pros:
1) Would adding a pair of resonators (or even two pairs) help reduce/eliminate the drone?
2) If I only did one pair of resonators, would before or after the muffler be better? (I was thinking after would be better, since people mentioned that cutting the tailpipe reduced their drone).
The resonators I'm looking at are the Jones AR3514B at Summit ---> Jones Exhaust AR3514B - Jones Exhaust AR Series Aluminized Welded Resonators - Overview - SummitRacing.com.
Thanks in advance.
1) Would adding a pair of resonators (or even two pairs) help reduce/eliminate the drone?
2) If I only did one pair of resonators, would before or after the muffler be better? (I was thinking after would be better, since people mentioned that cutting the tailpipe reduced their drone).
The resonators I'm looking at are the Jones AR3514B at Summit ---> Jones Exhaust AR3514B - Jones Exhaust AR Series Aluminized Welded Resonators - Overview - SummitRacing.com.
Thanks in advance.