Is the combo good for the price and better than stock, I'd have to say yes. Is it better than the Specialty Z split downpipes or other test pipes that are true 2.5" (e.g SZ, Z1, Stillen) no its not better then those. You have to watch though because some vendors listed do offer the 2.4" just re-branded and not called Megan. Most people are going 3" now but thats $$$$$$$$$. 2.5" is the way to go but if you can afford a full 3" more power to you!