[delray]

I installed a Quicksilver exhaust on my RRS 5.0/V8 dynamic this morning. My initial drive was like 'wow, perfect!' Nice growl when accelerating. Cabin noise was not even noticeable in that short drive. Then this afternoon I took it on the highway. Not so happy. It seems maybe between 1500-2000 RPM (? will have to look closer) there is a loud drone. When going downhill, or laying off the gas is not bad. A quick search found a few people with other vehicles who had installed x-pipe, or removed the resonator? Any advice or similar surgeries in this group?

 

[delray]

Thanks SCar for the response. I just drove about 15 miles on the highway. No noticeable drone?!? So wierd. The drone as I looked closer seems between 1500-2K RPM, when pushing at which is what I want, and expected. Starting to question my own sanity I'll have to see what it's like again on a longer drive.
In the meantime I ordered the VelocityAP, should be here Monday. That will be fun.

 

[delray]

So the drone is 1800-2K RPM when the motor is under a bit of load, like a slight incline or acceleration. When it was gone (previous post) I was actually traveling to a slightly lower elevation on a flat highway. Anyway I am looking at J pipes welded into the system as a solution. Google J pipe drone, and it seems a common issue among V8s of all makes. Here was one link https://ls1tech.com/forums/conversions-hybrids/1718591-exhaust-drone-engine-swaps-solved.html. Some are more bothered than others ;-)
I'll let you know what I find out.

 

[delray]

I just had the VelocityAP installed, and it seems the engine now revs higher, usually staying above the 1900 RPM range where I get the drone. I always drive in dynamic sports mode. Should rename it rocket mode now. I think this solved my drone problem.

 

[delray]

Yes, I posted it in for sale section. I think you (or someone else) thought price was too high? Happy to do look at best offer. Thanks