Originally posted by Importslayer:
bro why would I lie have you ever had a bad plug or bad wires..with bad wires u dont get enough juice and you dont burn as hot you fell it in your car during have accel. a spark is a spark but a weak spark might miss which does u no good a strong spark is alot better and more consitant



Exactly - any power gains seen with a set of plug wires is in comparison to the old, worn out set. If you dyno two brand new, quality wire sets back to back, the only gains you will see are unrelated to the wires (dyno error, changing ambient or engine consitions, etc).

Same train of thought: Take a set of injectors that are clogged. Dyno the car. Clean them. Then re-dyno the car. The gains aren't FROM the injector cleaner you used - it's from fixing whatever was working improperly.