Originally Posted by
Karlos G
No it's beacuse yours is leaner than his, nothing to do with the exhaust mate.
ahh cheers dude, I had been wondering, as I did think my car should be running rich as i changed the metering unit and i was told by my mate it was running rick on his car, and i'd just been lazy and not re set it, but couldn't help thing why wasn't in not popping more at the same time.