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How loud/decibels(dB) are true duals?

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Old Feb 6, 2007 | 09:59 AM
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Default How loud/decibels(dB) are true duals?

I had a conversation with an Audiologist the other day and we got on the subject of cars. She told me that many of her clients were former drag racers and that exposure to loud cars caused hearing loss in their later years.

It got me thinking about my tsp duals. How loud do you imagine duals are?

You know that you are listening to an 85-dB sound if you have to raise your voice to be heard by somebody else.

Eight hours of 90-dB sound can cause damage to your ears; any exposure to 140-dB sound causes immediate damage.

150 Firecracker
120 Ambulance siren
110 Chainsaw, Rock Concert
105 Personal stereo system at maximum level
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Old Feb 6, 2007 | 10:12 AM
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I thought it was interesting that volume level doubles every 3 dB.

So 103 dB is twice as loud as 100dB.
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Old Feb 6, 2007 | 10:17 AM
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I don't believe there is any published data. Someone would have to measure their car with a decible meter in order to get an accurate measurement. That's a good question, but hard to answer.

Also some duals are quieter than some. The TSP duals are known to be one of the loudest exhaust systems. OTOH the Bassani True Dual kit is well refined, and not too much louder than a normal Magnaflow catback.
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Old Feb 6, 2007 | 11:36 AM
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I think an LT/ORY/LM setup is still one of the loudest damn things I've ever heard, easily louder than my duals... but not by much If I can find a dB meter I'll measure mine, what the hell.

-J
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Old Feb 6, 2007 | 03:30 PM
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Ive got you all beat... Straight headers wooohooo LOL. But ive got True duals to be put on so it will quite it down quite a bit. I love the sound of true duals though.
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Old Feb 6, 2007 | 04:38 PM
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I'd guess mine is over 105 dB for mine...it pretty easily overpowers my car's stereo (and it is all aftermarket).
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Old Feb 6, 2007 | 04:46 PM
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Originally Posted by MeentSS02
I'd guess mine is over 105 dB for mine...it pretty easily overpowers my car's stereo (and it is all aftermarket).
It overpowers your cars stereo while cruising or at WOT?, I couldnt imagine it does while cruising.
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Old Feb 6, 2007 | 04:48 PM
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Originally Posted by SScott236
It overpowers your cars stereo while cruising or at WOT?, I couldnt imagine it does while cruising.
Yes...definitely WOT. Cruising below 2000 RPMs you don't even have to raise your voice to have a conversation.
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Old Feb 6, 2007 | 05:26 PM
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my neighbor car has borla lm with oem manifolds, i got the headers with td and while cruising his is louder at wot i think they are about the same.
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Old Feb 6, 2007 | 06:05 PM
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I'd like to find this out as well. I am thinkin about gettingthe TSP package.
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Old Feb 6, 2007 | 06:16 PM
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I Just Went Long Tubes/td's Dumped Before The Axle And To Tell You The Truth It Is Quieter Than When I Had Stock Manifolds And Exhaust W/ A Cutout? Sounds Better But Its Just Not As Loud...well Maybe Over 5k Rpm It Is But For Everyday Driving It Is Quieter...weird Cuz I Thought It Was Gonna Be A Lot Louder...lol Nothing Compares To When I Drove The Car With Open Headers For 3 Days...now That Was Intense
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Old Feb 6, 2007 | 07:32 PM
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I have the pacesetter LT's and 3 in y pipe and the LM1 and it is the loudest that I have heard other than open headers
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Old Feb 7, 2007 | 12:55 AM
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well my freind has a DB meter to mesure car steros and .i have no subs just aftermarktet cd plaers and Alpine speaker and it was like a 110 db i think .so i thaugh lets DB my car. i thaugh i was crazy but i maxxed the meter out at about 4000rpm i think the one we used maxed out at like 140db not bad for long tubes and Xpipe lol but its still not loud enough
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Old Feb 7, 2007 | 01:11 AM
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I have LT's and duals with bullets dumped and i dont think its that loud. But by the reactions i get from people while cruising around tells me different
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Old Feb 7, 2007 | 01:16 AM
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Exactly i belive us true dual guys get acustom to the sound we have and are dead to it.but a quick bleep of the throttle and ppls reaction will bring a smile to your face again
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Old Feb 7, 2007 | 01:31 AM
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Originally Posted by ls1chris
Exactly i belive us true dual guys get acustom to the sound we have and are dead to it.but a quick bleep of the throttle and ppls reaction will bring a smile to your face again


I am always thinking about how quite it is until i scare the **** out of somebody
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Old Feb 7, 2007 | 02:14 AM
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i cant lie; my car's loud, very loud..especially for being stock everything except exhaust




but i wouldn't mind it being louder!!
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Old Feb 7, 2007 | 02:18 AM
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Originally Posted by SIK02SS
i cant lie; my car's loud, very loud..especially for being stock everything except exhaust




but i wouldn't mind it being louder!!
Your car is loud!
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Old Feb 7, 2007 | 04:57 AM
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I have no idea either, but my td's are loud *****!
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Old Feb 7, 2007 | 08:46 AM
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i won a "sound off" with pacestters,tsp catted y,and lm1.measured 1 foot from the tips it was 136.2db.a 69 big block camaro with open headers came in second at 125.xx.it was loud as hell
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