i need some help, my friend is selling these true duals off his car(description below) and i was wondering if they would fit, or what i would have to do to make them fit on a stock lt1 with stock exhaust manifolds.i would need o2 sims correct?how would they be mounted?



True duals for F-body.. Dr. Gas 3" X and one chamber Flowmaster Delta Force race mufflers They have a 3 bolt flange on the end and Ill give you the slip on coupling that will fit SLPs or Kooks. Its a 3" ID to a 3" OD with a 3 bolt flange welded on so you dont have to weld one on the headers

 

you would need to take it to an compident exhaust shop and have them fab up the extra pipe you need to connect to your manifolds. But 3" is to much for stock manifolds. Remember the closer you are to the engine the more crucial the exhaust becomes.