de cat pipe

[Paulo197]

hi all, new to the forum just got my 197 and i currently have a milltek non resonated sytem with standard exhaust manifold and secondry cat still in place. I`d like to install the milltek de cat pipe which im led to believe deletes the secondry cat. My question is would this cause a flat spot? and if so would this just be a case of needing a remap which would get rid of the flat spot and possibly yield a gain in power? thanks.

 

[RSRowe]

Yes it would likely cause a flat spot. The power gain is pretty minimal

 

[Paulo197]

Thanks for the reply, Sounds like its not worth touching then i guess im best to leave the cat in place.