maybe you meant a I4 but My explorer is a 98 V6 and 2 muffler shops were BEGGING me to upgrade to the flowmaster exhaust. I was like "umm ok?" It makes the explorer louuuuder and meaner sounding :-) maybe a lil like a mustang but its nice... I have never heard of any problems with a V6 with a flowmaster... by the way this is my first post here in the explorer forum. I always hang out at the civic forum since I just got it in december and am doing alot to it..
