yo! opinions?

well im new to this site and thought id actually post sumthing. as of now i am running a stock engine with a new lighter crank pulley, cold air intake, and a fuel pressure regulateor. I have an exhaust leak and thinkin about changing the exhaust to an es tuning muffler with new 2.25 pipin. good idea or should i consider something else? and would anyone noe prices? i like the deep roar of the es tuning muffler but if somethin else would b better, let me noe. thnx