I was thinking of doing this if it does something.

------------------
Brett

'94 Z28 (Polo Green) 47K miles, 4L60E A4,
2.73s, T-tops, Power Everything.
Bone Stock Until Next Spring.
-------------------------
Soon To Replace The Berlie
'87 Camaro SC/LT (Blue) 5.0L V8 4bbl,
108K miles, 3.23s, T-5 M5.
-------------------------
'85 Berlinetta (maroon) 2.8L V6, 166K miles,
3.42s, TH700R4 A4, Delco Rapidfire Plugs,
Wells 8mm wires, Dual Exhaust.
The Tranny Died 11/30/00

 

if you hollow out your muffler it will be alot louder but you will notice a tiny difference in performance you need the air r4estriction of the muffler . best thing to do is to replace it .

 

Thanks for the info!

 

That's an old trick from before WW2 when mufflers were baffle plate deals. Taking a pipe and pushing it from one end to the other was possible and practical.

I think you'd end up ruining the casing by the time the guts were rammed out of a modern muffler. You're better off installing something else. Glasspacks are dirt cheap and would flow better than a hollowed-out casing.