Awesome stuff. Could you try the German method? Which has validation in Europe...@depotdan, I just did the sound test. I got very weird results that I hope someone else can double check. My first test was according to the above video, 19.5 inches at a 45 degree to the muffler at muffler height. I was in a school parking lot. I was using a Radio Shack digital sound meter. Here are the results:
2000: 102 dB
4000: 104 dB
6000: 97 dB
I then repeated the test at 10 feet centered on the rear, muffler height.
Idle: 70 dB
2000: 90 dB
4000: 102 dB
6000: 90 dB
I can't explain why it's less loud at virtually WOT except to say the sound has much less bass and boom at WOT.
For those following this I have a Goodwin Racing resonated catback exhaust with the Goodwin Racing Sportcat downpipe.
There should be a limit on the amount of noise and I don't argue that point at all. I had a neighbor who bought a Ford Raptor. First thing he did was a muffler modification. My entire house shook every morning at 5:30 when he started his truck and let it idle for 10-15 minutes. I'd guess it was in excess of 150 decibels when standing at my front door. that is excessive.Every freedom get abused first and the most in California. I live on a long stretch of road that people race on every night. I can't believe how loud some of the exhaust are on these cars that are doing these 3 a.m. runs. Straight pipes everywhere. It's the wild west out here. People do whatever the hell they want and eventually that leads to new laws restricting freedoms. I guarantee, you live in any High population area you're going to have this problem and you're definitely going to have it here where everybody has at least one and usually two cars. Whats ruining Cali isn't liberals, although they are not helping, its way way way too many people. Most of whom do not give a damn. And when that happens someone will always respond whether they're liberal or conservative, "there ought to be a law." And sure enough there is.
Come to Germany and we can talk about useless laws and fines...There should be a limit on the amount of noise and I don't argue that point at all. I had a neighbor who bought a Ford Raptor. First thing he did was a muffler modification. My entire house shook every morning at 5:30 when he started his truck and let it idle for 10-15 minutes. I'd guess it was in excess of 150 decibels when standing at my front door. that is excessive.
The real question is regarding what that noise limit and solution should be. I submit that $1,000 fine is disproportionate in California where a thief can walk out of a store with $950 of merchandise and only be liable for petty theft which is a max of a $1,000 fine. I'd say that is far worse than a loud exhaust. Here are some California fines:
Driving while on a cell phone (a major cause of accidents) carries a $20 fine.
Windows tinted too dark (a risk for police officers in traffic stops) carries a $25 fine
Failure to have any license plates carries a $195 fine
Driving without insurance: $796 fine
Speeding up to 25 mph over speed limit: $328
Passing a school bus with children unloading and lights flashing: $616
I'd submit a loud muffler isn't as bad as any of these infractions, yet they are going to fine $1,000? Insane.
Don’t think that’s the case at all, plenty here register out of state so they don’t have to comply with local emission and tuning restrictions while driving around in LA. I’m sure cases have been had but the friends I know that do this don’t have issues .Well. Someone lacks a sense of humor.