How much am I actually gaining with racing spark plugs?
Realisticly how much am I gaining if I buy Bosch preformance spark plugs for my civic. HP gains? Torque gains and so forth. Thanks
your not going to gain anything in numbers to say ,you will notice it running a little bit better,but to actually have to put a number on the amount of horses you will gain is impossible,sometimes you wont even notice a difference in the way they will
