MG ZR: Cams & Maps

[vinny]

also buy the full janspeed system too! as I have seen these in action with the janspeed and it does work wonder on them too! plus the sound aswell!

I have a janspeed backbox, not a full system like the advert said Looking at the manifolds at the moment considering getting one and a decat pipe then putting the original cat on the decat pipe. Since the manifold only works with janspeed cat systems and a decat on the k series looses power.

where have you heard that shit from about the kseries looses power?
mines decatted and it pulls like a train!  the shell is a J plater.
they are fussy on back pressure that's all, if you put a too big a bore on they dont like it.
I spoke to the ex mg rover works team engineer at mg live. he gave me a few good pointers with these engines,

its true u can not gain ne thing removing cat or even loose power