I have a 2001 acura integra gsr (completely stock). I was wondering if it's worth spending $100 to replace the OEM spark plugs and wires with NGK iridium IX plugs and wires. Do your think i should buy it, and does it really going to improve my engine performance? If so, is NGK a good brand or do your recommend something else. Please give me as much advice as possible. THanks for helping!