something wrong...

[sportclio]

hi there.

have a clio mk1 172 with decat, 60 mm widened exhaust pipes, cai and muffler. till now car was ok but for the last weeks feel like its not going as good as before. and sometimes rev limits at 6500 but should be at 7250? feels like somthing wrong at high revs... we checked pulley and nothing wrong about that. what can be the problem? what should I look for?

 

[sportclio]

Any one idea?

 

[Dblock]

maybe engine isnt warm or your exhaust isnt giving enough back pressure dont know really. Unless the decat is telling ur lambda too much crap is going through and doing something to stop it i dunno

 

[sportclio]

rev problem appears after engine gets warm. any other ideas?