I have some twin Ir tip Bosch that look great. NOT previously a Bosch fan of their odd, poor firing platinum plugs from the 90's. But these Ir are used in BMW turbo engines. I sold the car and now I have a set of four orphans They retail for about $7.95 ea p/n 9603 The plug for your Acura 2.4L is p/n 9614 they go for about 9 bucks - Ken
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