LT1 Muffler

[QuickTop]

Is the muffler really needed for back pressure on these cars? i plan on eventually doing a full exhaust with a muffler. but the aftermarket muffler ive got on it now ( while it sounds great) has a hole. so im wondering if i can just put a Y-pipe on the existing exhaust as it comes over the axle and bend some pipes to fit up to the stock hung tips ( and pipes attached to the tips)
and when i get a new muffler i was thinking about the Dynomax ultra-flow.
All comments welcome
Thanks, Bryan

[jetice]

The muffler is not needed for back pressure, but any stock exhaust V8 vehicle with the muffler removed will sound like horse crap (think american rice).

[QuickTop]

I tried to look up what it sound like. but i couldn't find any clear videos..
im thinking ill just get a different muffler now. im thinking either dynomax or thrush.

[c0ncEpT]

It will sound like a dump truck. No exaggeration.

[ryanwarby01]

Look up videos with SLP Loudmouth. That bascially has no muffler and should give you an idea of what it will sound like.

[QuickTop]

Ive narrowed it down to the Dynomax 17638 -OR- the Thrush 17638

[JoeliusZ28]

Backpressure is NOT needed with an LT1 ever. SBCs like to breathe. Every exhaust enhancement I have done on my car has gained me power. I stopped at 3" duals and I have had many people tell me i wouldnt see a gain with them... that was false.

[QuickTop]

i dont know how well you know these mufflers, but which one would you personally reccomend for flow?