Long Tubes: Louder or quieter?

[JonJon]

For those of you with LT's on 99+ GTs, I'm curious, do LT's make it louder or quieter? What if the mid pipe and cat back aren't stock?

 

[lopey4.6]

Actually I think they made my car a little quieter.

 

[NasaGT]

Can't have LTs and stock mid-pipe.

I think sound is mostly effected by the mid-pipe and catback. cats/no cats, x or h, chambered, etc...

 

[Dgaffler]

A bit quieter.

 

[stangman]

jonjon when i got mine on it actually quieted it down a bit at idle, but when i hammer it, it's definately louder

 

[JonJon]

Can't have LTs and stock mid-pipe.

I think sound is mostly effected by the mid-pipe and catback. cats/no cats, x or h, chambered, etc...

That's true. I just meant relatively stock, if you just threw LT's on as the first mod.

jonjon when i got mine on it actually quieted it down a bit at idle, but when i hammer it, it's definately louder

Yeah, that's what I thought -should- happen. Louder at WOT but some people were telling me it's quieter... and a few above you posted that it's quieter.

 

[mustang70]

Are their headers coated? Maybe the coating has some sound deadening properties.

 

[JonJon]

Actually I think they made my car a little quieter.

A bit quieter.

Even at WOT?

 

[mnbf]

hmm

Quiter and alot deeper\ less raspy sounding

 

[just some guy]

Quiter and alot deeper\ less raspy sounding

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[BNH4.6]

Much louder at W.O.T with very little rasp. Very little drone at 2,000 rpm, idle is deeper but no louder than a stock car with weld-in flowmasters. The idle is much much cleaner and more refined than the stock manifolds. My best friend has a 04 Mach 1 with Pro-Chamber and Mac cat-back. Mine is louder at w.o.t but his is louder everywhere else idle cruising etc.. His drones about 7 times louder than mine and we are both off road.

 

[el_kid_1]

At WOT, my car is much louder...sounds like a beast that wants to kill corvettes!

 

[urban96]

told u they were quietier jonjon

 

[GreekStang85]

LT's give a deep powerful sound match it with an o/r h and your choice catback and it will sound awesome

 

[CottonBurnerz]

a bit queiter but much more smoother sound... my friends like it alot

 

[JonJon]

told u they were quietier jonjon

eh??

I bolded the belows.

jonjon when i got mine on it actually quieted it down a bit at idle, but when i hammer it, it's definately louder

At WOT, my car is much louder...sounds like a beast that wants to kill corvettes!

Much louder at W.O.T with very little rasp. Very little drone at 2,000 rpm, idle is deeper but no louder than a stock car with weld-in flowmasters. The idle is much much cleaner and more refined than the stock manifolds. My best friend has a 04 Mach 1 with Pro-Chamber and Mac cat-back. Mine is louder at w.o.t but his is louder everywhere else idle cruising etc.. His drones about 7 times louder than mine and we are both off road.

it's like half for quieter, half for louder

 

[urban96]

quietier at idle/normal driving but louder at WOT

 

[kboy262]

From my experience the cars are actually quieter down low (idle-2000rpm). Once you hit it pretty hard volume climbs pretty rapidly. But it sounds a lot cleaner thou with the LT.

 

[maddogg545]

Quiter and alot deeper\ less raspy sounding

A tad quiter but a lot better sounding! Plus once you start doing Head and Cam work you will be glad you have the long tubes!!

 

[JonJon]

quietier at idle/normal driving but louder at WOT

This whole discussion came up when I said my car sounded as loud, if not louder, than the 96-98 Cobra with LT's, o/r x, Mac cat back. And I was like Shouldn't LT's be louder and you said LT's normally make a car quieter. The context was at WOT