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I am looking for small mufflers that I can possibly use. The new CA rules are no more than 95 decibels 3/4 of Power and read at 20 inches from the exaust. Contrary to what some people say about it not affecting classic/vintage or presmog cars <1975) this is not the case. The new law changes the penalty from a fix it ticket to a mandatory fine, and a mandatory visit to the state ref and a visit to the judge. The visit to the state ref puts your entire car under the microscope and even though it does not need to be smogged, it must have all factory polution equipment that came with the motor beign used. The visit to the judge will settle the case and the fine is 1000 dollars plus all repairs already expended. It also shifts the compliance issue from the state ref to the time you got the citation. You cant get the citation fix the problem, and go to the state and pass then go to court. You must prove that at the time you were stopped that you were compliant. The state inspection is just to prove you fixed the problem, all the required equipment is there and you are ready to go see the judge once they test your car and give you the compliance paperwork.. As stated above, some people think and wrote about it not pertaining to classic/vintage or pre-smog. Not true. The law reads as such (meaning of) : .....all vehicles subject to registration in CA are subject to.....no more than 95 decibels at 3/4 of power......when measure at 20 inches from the exaust...... etc.... no exemptions except for motorcycles, vehicles over 6000 lbs and off road vehicles not allowed to drive on the street. So, I dont want the hassle, dont care about losing a few hp if need be, howeve I do want a car that is compliant and will not give me legal headaches. So can anyone suggest a good SMALL quiet muffler that will keep the car under 95 db at 4500 rpm? My current set up is 6 into 2 into 1x2.5 inch, then splits into two 2 inch, each of which goes to a side slot underneath the side bumper behind the wheel wells. I am very limited in room since the gas tank is custom made and occupies the entire room underneath not leaving the original space on the left side open to accomodate a muffler. Any ideas????? Either 2 smaller mufflers for sides or one flat on the main, or perhaps some insert silencers??????