Quote:
Originally Posted by Quicksilvers
If you are considering exhaust in CA you have few options Stillen and Nismo exhaust are both carb legal in CA. If you are set on the Stillen supercharger kit great choice but I would not run the Stillen tune for too long as it has been reported to cause a lean condition and can put the longevity of your VQ37HR engines life in jeopardy get your Z professionally tuned as soon as possible after going forced induction. Definitely contact Topgunz about purchasing the A2A air to air intercooler set up or make plans to install a air to air intercooler set up it’s a much better choice as the air to water set up is inefficient. Since you are located in Northern CA look into Z Car Garage as they are not too far from you. You should speak with your tuner to see what tuning software they use and recommend. ECUTek tuning would be my first choice.
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All catback exhausts are CARB legal in California.
Replacement Parts are aftermarket parts that CARB considers to be functionally equivalent to the stock part they are intended to replace, and therefore would not impact the emissions from these vehicles. These parts are appropriate for sale and use on automobiles used on or off the public highways. For aftermarket exhaust systems and related parts, here are two applicable scenarios:
(a) If the automobiles stock exhaust system does not contain a catalytic converter, then an aftermarket exhaust part is a replacement part as long as the part does not remove or replace any emission control equipment originally attached to the stock exhaust system, such as oxygen sensors.
(b) If the automobiles stock exhaust system contains a catalytic converter in the manifold section of the stock exhaust system, then an aftermarket muffler positioned downstream from the catalytic converter (i.e. cat-back) is a replacement part as long as the part does not remove or replace any emission control equipment originally attached to the stock exhaust system.