TwoFast

iTrader: (23)

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.

RickyMartinZ28

iTrader: (5)

I considered doing this awhile back, i was told it would sound like crap...

I guess we'll see...

-Ross-

iTrader: (2)

I bet it's going to sound like ah-noose.

TwoFast

iTrader: (23)

some guys have told me it will have a deep raspy sound...partially like the loud mouth....we'll have to wait and see.

ThunderZ28

iTrader: (7)

If anything put you a separator plate shape into a v, The point closest to the inlet..
Then it would become a single chamber Flow..
Put it about mid ways in the muffler

TwoFast

iTrader: (23)

I was tossing that idea around....hmmmmmm

svt_jesse

Well deff keep us updated I wonder what it sounds like!

Greed4Speed

iTrader: (7)

It'll sound hollow and raspy and will create large chamber that'll slow the flow of exhaust.

Could jst get a 1 gal paint can and put it on there.

Inspector12

iTrader: (29)

Too late I did this about 95 LOL! Sounded tingy and raspy I don't know about any gains in HP. GL!

01z

iTrader: (3)

i see why they sold it for 30 bucks

9000th01ss

iTrader: (10)

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.

Sarge_13

iTrader: (1)

Sorta like what people do with cats now?

calongo_SS

iTrader: (7)

You've got to put something in there, that will sound like ***.

The $30 was worth it, just cut the muffler out and put a magnaflow muffler in it's place.

-Ross-

iTrader: (2)

Throw a handfull of marbles in there while you're at it.

ZONES89RS

iTrader: (25)

****, 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.