I've just changed my plugs and the old ones where pretty bad, the gap was way out of spec. The car is a manual and before changing the plugs it was very easy to stall. If anybody else drove the car they'd stall it straight away, I've gotten used to it and know exactly how much gas to give it.etc Anyway now ive changed the plugs it seems to have so much more torque down at low RPM's. I can start rolling just on the clutch which before was close to impossible. Also I can crawl along in 2nd and 3rd now where before I'd have to shift in to 1st otherwise it would start jerking and cut out. Also there is less vibration at idle, I thought my motor mounts where bad but now it is a smooth as silk! Can a simple plug change make a difference to torque at low rpm's? Its definitely not a placebo!