Ugh this is getting old I have had gaskets on both sides.... driver side twice crap out on me!!! .........Its the passenger side from what I can tell im 90% sure its #3 or #4 but you really dont know until until you get in there. I had a shop change them out but this time i have a spare set. Ok so what would I get myself into attempting myself? Im guessing im going to need to go in from underneath because theres just no room up top....I have Bassani Long Tubes soooo options Im not a noob when it comes to automotive but Im not a pro either:alcoholic