See my garage for specs if need be but I currently run a Nur spec R and a First decat (I still have the second cat in place) and currently see about 1bar boost. I have now recently purchased an EBC (Blitz Dual SBC Spec R) and intend to run 1.2bar max (have 3 settings - 1) 1bar 2) 1.1bar 3)1.2bar ) anyway, I don’t have an AFR gauge and although I have had my car on the rollers recently and the AFR's are spot on, would the ecu be able to add fuel sufficiently to compensate for increased boost? and the main question I was wondering is would it be beneficial to remove the second cat and run 1.2bar controlled by the EBC (with a 1bar rr) compared to running 1.2bar controlled by the EBC with the second cat still installed? In other words would I see any more power from removing the second cat under the same situations, if you know what I mean. Thanks guy's.