Installation Time: Afternoon
May 13, 2018
Loud but fun
Pieces came VERY well packed, no cosmetic blemishes whatsoever. They are much lighter than stock--by a good 20lbs or more per side. Installation was without issue once I figured it out; first side took much longer than second. One side fit right out of the box, other side needed some slightly adjustment to the rearmost hanger before it wouldn't sit up against the ABS rear valence, but nothing major.
They retain the heavy H-pipe rumble with the rest of the stock exhaust system, but will literally ring your ears if you punch it with any surface next to you with the windows down. Standing behind the car while it was being dynoed shook the concrete foundation of the building and fluttered any loosing clothing, it is seriously loud, even with the rest of the exhaust stock. It would be almost ludicrous with an off-road X-pipe.
The tone under low load is almost like a double-volume stock exhaust, but under medium or higher load it brings in a very loud resonance that the stock mufflers completely dampened. It sounds like a straight-piped race vehicle, even with cats and stock exhaust otherwise in place. Some people may find it too much, and I won't blame them, but you won't get into that sound while driving normally. It only shows up when you give it a good amount of load, when you want the car to really open up anyways.
Highway drone in 5th is definitely there, but pushing up to 6th completely negates it. I can hear the rear drive gears more than the exhaust cruising at 75mph. Supercharger whine gets overpowered by the exhaust volume, however, unless you're above 5,000rpm, at which point you can hear it if you try (stock pulley).
I don't think some simple finished pipes are worth near to $700, but it's the best you're going to find. With that being said, the welds and finish are all amazing, and the tips are three dimensional and not just simply rounded flat sheet metal.
Overall, worth the buy, compared to other options. Set aside more time than you'd think if you're pulling the stock mufflers for the first time, since they require quite a bit of finagling.