barchetta1

Well, I could not find this comparison so I had to bite the bullet myself. $400 on Amazon.

My analysis: lower tone more aggressive idle. It no longer sounds like a Cadillac.

MatthewMiller

Sounds good from that clip. Since everybody else will ask, I'll go ahead and do it: how is the drone from ~1700-2000rpm?

barchetta1

Its there. Not horrible but there. Abruptly falls off at 2k. Which is another reason I need a new differential. Mine is a 2:59 ratio. Im auto.. around town if I keep it in 2nd its fine. In freeway I keep it out of overdrive. But like I said, its not a bad drone but it is there.

Im working on some easy to install baffles the Harley crowd uses. I'll post when complete and tested. I was expecting a small drone with existing stock exhaust. If this was modified.. cats removed and so on, this would likely be a bad drone.. but that is just a guess.

Mine is not a daily driver but I despise drone.

MatthewMiller

Please do bring that info back to us. It would be very useful!

Pwnage1337

interested in the baffles too, i like the ones that Joby made for his car.

barchetta1

Will do.. for $400.. I would recommend these if not a daily driver or if you are under the age of 35.

I will update, I promise.. would like to give back to the community here and I know no one has done this for the LT1 for the NXT mufflers and Im sure many are wondering...

9T3VETTE

barchetta1

I hope this helps

9T3VETTE

Nice, thanks! Looks like they tuck underneath well....

WVZR-1

The snapshot might be deceptive but 'extension beyond' fascia actually effects the 'drone' and it has to be remembered 'drone' is a personal issue that may or may not be deemed an issue for all. These extensions seem short - maybe the snapshot!!

Will a ratio change correct the drone for the OP? The inserts he mentions? Very likely the ratio change would - baffles/inserts?

barchetta1

You are correct.. oddly, its difficult to extend much/any more.. but doable with some work.. but I already slightly modified to get them out that far.. the attachments to mounts are not mounted far enough back.. so I may meed to get some new ones tig welded on.

One could play a lot to try and get rid of the drone.. Im going to say this again.. Im a drone phobic..Its not bad WITH stock everything else.. I think the guys that experience drone with ANY muffler are also removing other "stuff".. cats, in my opinion probably have a big influence.. I mean just look at the things.. big sound chambers..

Anyway.. Im happy.. once I get my 3:xx ratio in its gonna be a non factor I think.. I am also getting used to playing with staying in no overdrive around town.. Its a simple shift on a auto trans but you have to get pre-programmed.. I tell ya, with a 2:59 running under 40 in OD is lugging the crap out of this motor.. this was ALL done for EPA requirements.. there would never be a OD in a vette if it werent for the EPA and MPG requirements to keep it off the guzzler tax radar.

I also think maybe pushing them out 3/4" might help as you suggest.. good eye

barchetta1

I have no objection.. I kinda miss the stock LT1 rectangular outlets.. but everyone else says "I like that better".