That's the bargain of the century.The loudness is difficult to answer.
From the inside of the car:
At idle, it's a little louder and lower.
At low throttle, low revs, it's also just a little louder and lower.
At mid throttle, low revs, again it's a little louder, and lower.
At high throttle and high revs, it's definitely louder, though not nearly as loud as an Eisemann, even Sport.
From the outside, it's easily louder in mid to high throttle, by quite a bit.
I paid $2500, used, for the exhaust & h-pipe.
Thanks for the report.:applause:OK, for the sound numbers:
Measured using Radio Shack sound level meter (#33-2050).
dB meter using slow response (so I can read it), with A weighting.
Measurements taken from 6" from driver's head. Windows closed. Air fan on lowest setting.
Before (with AA software, the Dixis Exhaust, and the Evosport Pullies):
2000RPM in neutral: 59 dB
3000RPM in neutral: 62 dB
2000RPM in 4th gear, flat surface: 65 dB
3000RPM in 4th gear, flat surface: 68 dB
After (with AA software, the Dixis Exhaust, and the Evosport Pullies, plus Eisenmann Section 1 and BMC filters):
2000RPM in neutral: 58 dB
3000RPM in neutral: 65 dB
2000RPM in 4th gear, flat surface: 66 dB
3000RPM in 4th gear, flat surface: 70 dB
1 dB: lowest perceptable increase in sound
3 dB: doubling of actual sound pressure
10 dB: doubling of perceived loudness
However, these numbers don't tell the entire story. Though the sound level during cruising didn't really change, when your foot is in it, the exhaust growl is noticably louder. I'd say there's probably a 3-4 dB difference when floored.
The biggest plus: STILL NO RESONANCE, even through the 2000-3500RPM range.
That is simply awesome. I'm talking real no resonance, not the Eisenmann Sport "no resonance", or the Eisenmann Race "oh-my-god-what-is-that-sound" resonance.