Mifo

iTrader: (10)

I have a 03 wrx thats had the cat pipe removed.
it still has stock up and downpipes.
last year the CO was 0.77%!!

would it be possible to get in down to 0.2% with the help of octane booster or similar??? plus a warm engine??

I thought it would have no probs with only 1 cat removed!!??


whats people thoughts??

53

iTrader: (41)

If your car is in danger of failing emmission with only the centre cat removed you have a problem ! You have two further cats, one in the DP and one in the Uppipe ! Most people get through an mot without the uppipe cat and 100 cell on the DP cat only.

Coc-ker

iTrader: (1)

Have you put any air filters on it?

These may be affecting the MAF causing it to overfuel. Mine did this really badly. Had horrendous readings!

Mifo

iTrader: (10)

no . last year it had stock filter panel.

its now got uprated panel.

ill makes sure they get the engine hot when they test it and hope for the best.