[24v]

Originally Posted by Umbriel

Yeah the middle pipes always go through the muffler and are always working, the outside pipes do bypass it though so it is a mix of both really when the valves are open. Still probably too loud for California I am sure.

The outside pipes are perforated, not solid, so some of the exhaust enters the muffler from them as well. Also, the npp exhaust is under 90db tock, and CVA allows 95, so no problems there either.

[Umbriel]

It sure sounded louder than that to me when I still had it on my car, I didn't like the straight piped sound it had so I put an AWE Touring cat back on it.

[MackSteelPrivateEye]

Originally Posted by SteevK

Where's that leave NPP? Do they not offer it in CA? What if I moved there, and already own the car w/NPP?

I'm 3000 miles away, just curious...

On edit: I just noticed that chart says State: PA (don't know where county #10 is) I can't remember anyone getting a noise ticket in the last 30 years or more. I guess if I do any exhaust (in Sept 2021, after warranty) I'll make sure to get one that preserves the NPP - besides, I like adjustability

Get caught in California with loud exhaust then expect a $15,000 fine or face 30 days of jail time, a suspended lic. and possible deportation if you are an American citizen.

[Boost Creep]

Originally Posted by ChetCamaro

California used to be cool.

50 years ago.
Even then it was sliding down the slope.

[OneSlowV]

Originally Posted by MackSteelPrivateEye

Get caught in California with loud exhaust then expect a $15,000 fine or face 30 days of jail time, a suspended lic. and possible deportation if you are an American citizen.

Now we both know that shitty state isn’t deporting anyone . Best advice OP is to just leave the state .