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      01-07-2019, 02:56 PM   #62
Suprgnat
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Drives: 2013 128i LMB 6MT ZMP Slicktop
Join Date: Jan 2013
Location: California

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2013 128i  [9.58]
Quote:
Originally Posted by pz619 View Post
It's 95, at least I can tell you definitively this is what they test for. This is from my state referee test document.
Thanks! Sorry, missed that. Section I quoted was for "new" vehicles. 95 dBA is amazingly generous (and loud).

27151. (a) No person shall modify the exhaust system of a motor vehicle in a manner which will amplify or increase the noise emitted by the motor of the vehicle so that the vehicle is not in compliance with the provisions of Section 27150 or exceeds the noise limits established for the type of vehicle in Article 2.5 (commencing with Section 27200). No person shall operate a motor vehicle with an exhaust system so modified.

(b) For the purposes of exhaust systems installed on motor vehicles with a manufacturer’s gross vehicle weight rating of less than 6,000 pounds, other than motorcycles, a sound level of 95 dbA or less, when tested in accordance with Society of Automotive Engineers Standard J1169 May 1998, complies with this section. Motor vehicle exhaust systems or parts thereof include, but are not limited to, nonoriginal exhaust equipment.
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