Flowmaster Surgery
Flowmaster Surgery Well we all know about the infamous Flowmaster cat-back. Not to many guys would even let it touch their car let alone install it on their car. Well I ran across a used Flowmaster cat-back..picked it up for $30. After purchasing the cat-back I researched the cat-back and further foud out the the flow of the muffler is horrible according to many board members...Hell after the little amount I paid for it I said "What the hell, lets open it up."...so I decided to open her up and see what was wrong with the muffler that makes them not flow the best. After cutting a square access panel in the bottom of the muffler, I opend it up and found a mess of rotting metal and a maze of baffles. It all had to go. I tore it all out and opened it up a little bit. I'm curious to see what it sounds like behind my Mac headers and ory with the cam..I'll keep you guys updated.
p.s. I've never seen or heard of anyone doing this with this cat-back so I thought I'd share. I included a few before and after pics.
p.s. I've never seen or heard of anyone doing this with this cat-back so I thought I'd share. I included a few before and after pics.
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I was going to cut an old flowmaster open before I threw it away. My brother in law said it was very common in the 70's to cut mufflers apart, weld in a straight pipe, weld it back up and install the welded cut facing up. This was so you couldn't get a ticket for no muffler, but basically run straight pipes.
I was going to cut an old flowmaster open before I threw it away. My brother in law said it was very common in the 70's to cut mufflers apart, weld in a straight pipe, weld it back up and install the welded cut facing up. This was so you couldn't get a ticket for no muffler, but basically run straight pipes.
****, wont hurt to try it. I have straight pipe on my 89 and 95, i love it and so does everyone else. BUT, what will a big *** empty chamber sound like? Only one way to see.