Join Date: Apr 2005
Car: MG ZS200, Discovery3 HSE, MGF SE 1.8i Wedgewood
Save your money as the main three induction set-ups that work well on the 180 are the ITG Maxogen, expensive but bespoke. Then the BMC CDA which will need some pipework and lastly the open cone situated in the inner wing, again requiring hoses and pipes. All these will give around 10bhp more if executed correctly. I have the BMC fitted, has been on for over 4 years and has been faultless and just requires the normal servicing.
Prior to remapping mine acheived 191bhp coupled with a decat and Janspeed system, so worked for me.
The two you mentioned in post #1 are no good unless you want the noise and can afford to waste fuel.