Sometimes when i'm accelerating hard or climbing a hill in 5th gear i smell a strange stink, smell like sulphur or a fart :rofl: isa this normal or a sign of trouble

its fairly normal, thats just your cat convertor under extreme load. nothing to worry about.

you should shower daily you know this? try that then post results lol.
Its normal with aftermarket cat exhaust is your clutch being fried gas not being burned but doesn't sound like a problem