QuoteOriginally posted by venomturbine
hi
my stock cat converter is broken inside (brings a bAAAd noise)
-can i remove this thing and replace with a straite 3" pipe?
YOu can, but exhaust emissions will be higher. I don\'t know how vehicle testing works in Germany - if it has to pass a yearly test that includes emissions test, you might have a problem.
-any other mods needed?
Not as far as I know... although remember that rotaries are NOISY when de-catted.
-what about this sensor? he controls the cat... whats to do why him?
The cat temperature sensor? If you decat you can remove that (but I don\'t know how you tell the engine management that\'s what you\'ve done...)
Note I have assumed you have an RX7 - if it\'s an RX8 then the answers will be different!
thx for help [/B][/QUOTE]
Which car is it for.... You will need to ensure the engine can fuel correctly with the back pressure reduced.
Scott