W116 280S Emissions ques. M110

[chinny4290]

Hey guys. I have a 1975 280S that's registered as a historic vehicle so it's completely exempt from inspection and emissions.

That said I want to being to slowly sap more power out of the car by removing the restrictive systems on the engine.

Anyone have a good guide to removing the smog pump/catalytic converter etc, basically things I don't exactly need to meet emissions requirements?

What are the ramifications if I removed the above and all other corresponding parts etc etc. Any guidance welcome.

Thanks y'all.

[Mike D]

If you have the "cat" mounted on the front of the manifold you need to locate some pre-75 exhaust manifolds. You'll need to replace the exhaust pipes from the engine to wherever they connect. Some have a "Y" pipe and some run dual all the way back to the muffler. Any decent exhaust shop can make them up for you.

[chinny4290]

Yea my cat sits right next to the engine