hey i was wondering if anyone has ever had to replace there y pipe in there blazer?

How much did the shop charge you ?, or if you did it ur self was it very hard ?

Also i found one online but not sure if its the right one http://www.walkerexhaust.com/catalog...uponScreen.asp

would i have to get anything else to replace the y pipe like gaskets or clamps?

all help would be awsome i dont mind forking the money to buy the y pipe but if i can do it my self i would rather

i found a pic of it on auto zone but this looks diff than others i seen