1999 Honda Accord ex 2.3L?

Okay guys i have a 1999 honda Accord EX 2.3L seadan. The car is a daily car also i do delivery 6 days a week running around 2,000 to 5,000 miles a week. The question I'm about to ask is what can i do to make my car performance better as of right now it's all stock.

As of now in the car

Spark plugs bosch spark plug iridium
Spark plugs wires from napa
Oil i use 10w 30 castrol full synthetic
Oil filter is fram

Few thing i bought for next oil change

bosch spark plug iridium
10W 30 castrol full synthetic
Bosch distance plus oil filter

That about it what I'm really looking for is performance parts for the car to help it run a litte better. Also miles on it 180,xxx almost 190,xxx

I was thinking of stuff like cold air intake and new exhaust cause on a busy delivery my car take a beating from it.

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