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I remember some lads in Portugal had removed the cats about this time last year and saw an extra 3 or 4 BHP when car was put back on rollers. Not much I suppose but the noise if you like that sort of thing is nice !
I removed my kat long time ago... only I dont own a clio sport 172hp. damn
I dont know how much horse power was gain, but I felt the car was slightly smooth and more quik when full throttle to the red line.
Now I can reach the 180km/h mark without a problem...
Is it wise to change the whole exhaust from the manifold to the back end for inox tube? the sound will be more metallic instead of the OOOOOOOOOOOOOOOHHH kind?
BUTRE
P.S.- I own an energy 1.4lts engine.. lack of power beyond 5500rpm. (((
Primma supply a CAT replacement pipe for 95stg. Ordered one for my 172, phase 1. mine only has one sensor so its fine, apparently they cant supply one if your cat has 2 sensors going in.