Newbie here....2004 V6 Coupe
 

Hoping to benefit from the brain trust and knowledge base here. I replaced my 04 Coupe with a new daily driver and now the Accord is semi retired I am planning a few mods. A nice loader but subtle exhaust ? Upside the wheels .... 18 in? What will work best without flairing the body panels . And perhaps a performance breather ?

Bring on the Guidance and advice