Topic: 1977 Side Exhaust
in Forum: C3 Fuel, Emission Control, and Exhaust Systems
Federal law takes precedence over any state laws when it comes to emissions and I believe that law is essentially that any original emissions equipment must remain intact. That being said, in my part of Washington state, emissions inspections are not required for cars 25 years and older. So it's fairly common around here to have older vehicles without proper emissions equipment (me included - no cats, no EGR)
Sarge81 - FYI, I'm not so sure that a crossover or X-pipe will improve the sound. I have a buddy with a '79 that has dual 2 1/2" Magnaflows and X pipes. I have the same setup minus the X-pipe and I think my system sounds better (although it's been almost two years since I've heard it 
.) IMHO,
the crossover almost makes the sound too mild and quiet. My long range
plan involves chambered exhaust to replace the Magnas - side pipe sound without
side pipes! I've also heard that dual cats without any mufflers at all produces
a pretty good sound.
- Vehicles more than 25 years old, as determined by vehicle model year;
- Commercial vehicles weighing more than 10,000 pounds gross vehicle weight rating;
- Historical and collector's vehicles - contact Ohio BMV for details;
- Parade and exhibition vehicles - contact Ohio BMV for details;
- Motorcycles, recreational vehicles and motor homes - contact Ohio BMV for details;
I have Collector Plates on my '80 and since it is more than 25 years old, I will never be checked. That being said, I have no cat and have installed Patriot tight tuck headers and a MagnaFlow exhaust. With the other engine mods I have made, the car has never run better.
