Old musclecars need only worry about exhaust noise levels. Anything goes under the hood as they are exempt from smog inspection. My friend with a '67 Stingray coupe Tri-Power 461 Doug Nash 5-speed is a happy camper.

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0==WW==0
"…axles of evil…" - george w. bush

 

Cars more then 30 years old are Smog exempt.

 

Here's the facts, check out this website:

http://www.dmv.ca.gov/

Search for exhaust. If you're lazy like me, then this is what it says:

"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.

Amended Sec. 10, Ch. 92, Stats. 2001. Effective January 1, 2002."


Hope this clears things up for all of you.

 

We all understand that, however writing the ticket is up to the officers discretion as they are not required to carry a decibel meter with them. If you get the ticket, you must get your exhaust measured, for free, at the state ref. If you pass you will be provided with documentation that you are in compliance.

 

It actually really sucks because it seems most cops don't really care about Detroit muscle or those obnoxiously loud Harleys. Probably because most of them own one for the weekends