Solo Performance Quantum axle back on L99

[ZombieEatsYou]

I installed SP's new "no drone" axle back on my L99 last week and took it out for a road trip to get some video demonstrating what it sounds like from inside the cabin.

I only narrate a couple of these, letting the Quantum speak for itself. When I do narrate, I mention that the Quantum "drones." I don't think I used the correct term. It's not the see-saw-up-down note that I think denotes true "drone," but just an increase in loudness and felt vibration from the exhaust.

Some may like it, some may not. For myself, I'm undecided. I definitely like the louder idle and acceleration tone over the stock muffler. I'm not so fond of the louder vibration and tone along certain RPM bands. I mention the sound I mean in one of the videos below - judge for yourself.

First up is a low speed cruise up MD 210. I focused the camera on the DIC and Tach so you can relate the sounds to each.

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Next is cruising with the radio at level 10. As you can hear, the Quantum will not interfere with normal conversation at a no-load cruise.

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Here's an example of the psuedo-drone I spoke of. On video it actually sounds good, but in the cabin it's accompanied by a vibration so the sound is actually felt more than heard. If it went on constantly I would find it annoying.

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Once again, at normal cruising speed, the Quantum is very quiet.

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Finally, accelerating onto I95, windows open.

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So there you have it. One of the first exhaust systems for the A6 Camaro SS from Solo Performance. Price is a very reasonable $449 and there is a group buy going on right now here if you're interested.