How loud is an STS setup???
Hmm..db figures would be interested to get, but its really hard to say.
Under normal driving, you hear a lite turbo whine (sounds really nice) and under boost you can hear it quite well.
As for exhaust, if you have cats on the car, it really quiets down the exhaust and turbo whine and is very quiet overall.
If you are wondering whether or not it is too loud, the answer is definitely not, either way (cats or not).
We actually did a custom dual pipe setup on one of our Trans Ams that involved quite a bit of extra exhaust piping coming out of the turbo, and with that particular setup, you could barely hear the turbo whine at all. So if you want the loud turbo whine, you can go with a single short pipe. If you don't want it, you can go with something bigger. Some guys have even put bullets in the exhaust pipe, but that is not for me
Under normal driving, you hear a lite turbo whine (sounds really nice) and under boost you can hear it quite well.
As for exhaust, if you have cats on the car, it really quiets down the exhaust and turbo whine and is very quiet overall.
If you are wondering whether or not it is too loud, the answer is definitely not, either way (cats or not).
We actually did a custom dual pipe setup on one of our Trans Ams that involved quite a bit of extra exhaust piping coming out of the turbo, and with that particular setup, you could barely hear the turbo whine at all. So if you want the loud turbo whine, you can go with a single short pipe. If you don't want it, you can go with something bigger. Some guys have even put bullets in the exhaust pipe, but that is not for me
Originally Posted by SSnakekiller
Hmm..db figures would be interested to get, but its really hard to say.
Under normal driving, you hear a lite turbo whine (sounds really nice) and under boost you can hear it quite well.
As for exhaust, if you have cats on the car, it really quiets down the exhaust and turbo whine and is very quiet overall.
If you are wondering whether or not it is too loud, the answer is definitely not, either way (cats or not).
We actually did a custom dual pipe setup on one of our Trans Ams that involved quite a bit of extra exhaust piping coming out of the turbo, and with that particular setup, you could barely hear the turbo whine at all. So if you want the loud turbo whine, you can go with a single short pipe. If you don't want it, you can go with something bigger. Some guys have even put bullets in the exhaust pipe, but that is not for me
Under normal driving, you hear a lite turbo whine (sounds really nice) and under boost you can hear it quite well.
As for exhaust, if you have cats on the car, it really quiets down the exhaust and turbo whine and is very quiet overall.
If you are wondering whether or not it is too loud, the answer is definitely not, either way (cats or not).
We actually did a custom dual pipe setup on one of our Trans Ams that involved quite a bit of extra exhaust piping coming out of the turbo, and with that particular setup, you could barely hear the turbo whine at all. So if you want the loud turbo whine, you can go with a single short pipe. If you don't want it, you can go with something bigger. Some guys have even put bullets in the exhaust pipe, but that is not for me
I have STS with a customized Borla with a Dynomax bullet after that. I'm planning on adding another bullet that runs to the driver side outlet and connects the wastgate. With cats its not loud but i wouldnt run it with cats either. With my current setup its at the same sound level as the small flowmaster POS muffler my car had before. Mufflers after the turbo have a greater affect then on a NA car.
TECH Addict
Joined: Nov 2001
Posts: 2,659
Likes: 1
From: Bellevue, Wa
It's loud with no cats and no mufflers after the turbo.
I built a custom dual exit, dual muffler setup for mine and it's now as loud as your average cat back system at worst, alot quieter in alot of situations. Still plenty of turbo whistle when you get on it as well.
I built a custom dual exit, dual muffler setup for mine and it's now as loud as your average cat back system at worst, alot quieter in alot of situations. Still plenty of turbo whistle when you get on it as well.
Thread Starter
TECH Addict
Joined: Aug 2004
Posts: 2,866
Likes: 4
thanks guys. just wondering about using a STS on another car (with a LS enigne) here inthe UK.
for track days we ahve tight noise reg! some are as low as 100bd wich makes it hard to get alot of modded cars through!
Chris.
for track days we ahve tight noise reg! some are as low as 100bd wich makes it hard to get alot of modded cars through!
Chris.
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
Here is a quick burn http://video.ls1tech.com/video/3745ee8d-64f7-4ea1-90f3-bad9a9c2783d.htm]video[/URL] I made a while back. I still have cats but it's not that loud at all.
i dont see how you guys could be putting mufflers in these i LOVE the sound....all of it...there is not one point where i think "man that is annoying"
sure it louder than stock but not by much at idle......and WOT i want my car to sound loud...as long as its a good loud....and i think the jet engine sound is great
sure it louder than stock but not by much at idle......and WOT i want my car to sound loud...as long as its a good loud....and i think the jet engine sound is great
I have long tubes with 3" piping back to the turbo with no cats and it is loud. I like the sound at idle, cruising around town and WOT, but long cruises on the highway are not really pleasurable sound-wise. It drones like crazy. Of course my 4.11s don't help that either.
I will probably be going back to stock manifolds for heat retention later. This will make it easier when I have to put the cats back on every year after next year for emissions anyway. I'll do some testing to see the power and spool time differences and post the results...
I will probably be going back to stock manifolds for heat retention later. This will make it easier when I have to put the cats back on every year after next year for emissions anyway. I'll do some testing to see the power and spool time differences and post the results...
Without cats on my gto the highway drone can get annoying. It never really bothered me until this week when I drove it from Atlanta to Houston and back instead of my work truck.
My buddy has one. He started w/o a muffler, it was somewhat raspy alomst obnoxious. We added a bullet after the turbo and it sounds tons better. Not so much exhaust rasp anymore, makes the turbo noise more noticeable. Sounds good.