Hi,

im looking to buy a portable exhaust anayliser to setup my cossies mixture. Seen the Gunson one for sale in halfords which is supposed to be accurate to 0.5%. Im looking to take the car to MSD for a full setup / remap, but the car has never been on the road before as i have just finished restoring it and the engines a fresh build too. Just need to get it setup safely so that I can drive it. Also thought it would be handy to keep check on the mixture from time to time.

Anyone have any experience of the gunson one i mentioned, or recommend another make etc