Generation III External Engine LS1 | LS6 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

decibel readings

Thread Tools
 
Search this Thread
 
Old Oct 7, 2009 | 01:33 AM
  #1  
some_punk's Avatar
Thread Starter
Launching!
 
Joined: Apr 2008
Posts: 269
Likes: 0
Default decibel readings

Does anyone have decibel readings for each catback with LTs and catted Y, I am sure now set on buying some ARH's with a catted Y, but not sure which catback to get. There is a harsh noise restriction in Pitt Meadows for autoxing cars, which is 95 db.

So I would like to know if anyone has decibel readings for ARH LTs with a catted Y and the following catbacks:
-Magnaflow
-GMMG
-TSP rumbler
-Borla adjustable
-And any other catbacks that have good flow.
Reply
Old Oct 7, 2009 | 08:29 AM
  #2  
01ssreda4's Avatar
TECH Senior Member
15 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (96)
 
Joined: Aug 2007
Posts: 24,241
Likes: 89
From: Turnin' Wrenches Infractions: 005
Default

There is a list, maybe located in a sticky, that has decibel readings for like the top 15 catbacks. You have to search around for it.
Reply
Old Oct 7, 2009 | 02:17 PM
  #3  
mph476's Avatar
Launching!
20 Year Member
Photogenic
Photoriffic
iTrader: (7)
 
Joined: Aug 2004
Posts: 288
Likes: 0
From: Valley Village, CA
Default

well after running the gmmg, kooks lts metallic cats that setup was way over 95db....I also remember that someone took a video of a corsa exhaust with lts and cats and it db'd around 95db on a a cold start.
Reply
Old Oct 7, 2009 | 08:57 PM
  #4  
some_punk's Avatar
Thread Starter
Launching!
 
Joined: Apr 2008
Posts: 269
Likes: 0
Default

the readings are taken from 50 feet 90 degrees perpendicular to the car at WOT
Reply
Old Oct 8, 2009 | 05:43 PM
  #5  
Viper's Avatar
12 Second Club
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (6)
 
Joined: Dec 2001
Posts: 4,909
Likes: 3
From: Cleveland, OH
Default

There is a list around but my old Random Tech catback was 90db on startup cold and the stainless works catback I have now tested at 102db on cold startup. 3-1/2" exhaust. No cats, H/C/I.
Reply




All times are GMT -5. The time now is 05:01 AM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE