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Borrow someone's 1991-1994 stock exhaust for the weekend.Also, if you have an iPhone you can buy a cheap dB meter for $0.99.I have this one and it's within +/- 1.5 dB from my real RadioShack SPL meter:http://www.studiosixdigital.com/spl_meter.htmlAlso keep in mind that the limit is 92 dB(A), where the "A" weighting filters out low frequency sounds (i.e. deep sounding exhausts).
Borrow someone's 1991-1994 stock exhaust for the weekend.
Also, if you have an iPhone you can buy a cheap dB meter for $0.99.
I have this one and it's within +/- 1.5 dB from my real RadioShack SPL meter:
http://www.studiosixdigital.com/spl_meter.html
Also keep in mind that the limit is 92 dB(A), where the "A" weighting filters out low frequency sounds (i.e. deep sounding exhausts).
