Below are 2 videos of my 5.3l with a dumped flowmaster I took today. After I get my ly6 installed with ground cam, long tubes H-pipe, I'll post the after videos next month.

http://www.youtube.com/watch?v=vcGhJvxGRE0

http://www.youtube.com/watch?v=5sSfgamiLFo

 

Git r dun. We need after videos

 

I ordered the two 4x8x16 mufflers yesterday to add to the pile of parts for the swap.

 

Err, I haven't even thought about the exhaust system for my swap yet. I'm guessing the Y from the 4.3 wont work?

 

I can have them salvage my factory one from the 5.3 along with the exhasust manifolds. I am having my hi flow cats removed from it. One of the bolts on each maniole (1 of 3) is missing come to find out. cyl#2 on the 5.3 start to misfire, I suspect it might be due to a possible exhaust leak. I ordered a Fuel Injector for it. Last time it misfired the mechanic recomended I replace it. He suspected that is was sticking open.

 

I can have them salvage my factory one from the 5.3 along with the exhaust manifolds. I am having my hi flow cats removed from it. One of the bolts on each maniole (1 of 3) is missing come to find out. cyl#2 on the 5.3 start to misfire, I suspect it might be due to a possible exhaust leak. I ordered a Fuel Injector for it. Last time it misfired the mechanic recomended I replace it. He suspected that is was sticking open.