I enjoy the sound of the Gibson Straight pipes. Very noticable when you step on it but when your crusing around its not too loud. But thats just me, Cause i have a 4.6 V8 and it sounds good on my truck so. Im sure it would sound pretty good on yours. But, the Flowmasters have really good sound, its just the Gibsons are cheaper and money was an issue. But, there really good for the price. Well moneys worth.