This is topic Failed Noise Test @ 122.5db in forum Tech Talk at Northern California Ford Owners  .


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Posted by 35thanniversary (Member # 2226) on :
 
need some help on how to bring this noise level down. Ran a test with state ref and highest was 122.5db on the deacceleration around 3k. I only have magnaflows with 4" tips. EVERYTHING else is stock! If i replace the tips to 3.5 or even 3, would that help or do i have to go back to the stock mufflers? everybody at that damn shop told me it wasn't even that loud!!! [Mad] any help is much appreciated. thanks...
 
Posted by MikeD. (Member # 8060) on :
 
Stock mufflers really. Tips wont do you much. Whats the max DB?
 
Posted by BlowN67 (Member # 4229) on :
 
look up the penal code they got ur for. should tell u the break down of it of how many feet an so on where the sound should be at a certian level. from what i can remember. been there done that with Godd Ol'e ROSSETTI of FPD
 
Posted by Blind (Member # 3052) on :
 
I think the limit is like 92db, you're a bit off LOL.


stock mufflers, a guy in socal with a stock `99 cobra failed their test with stock manifolds, stock mid pipe, stock catback, he ended up having to bolt resonators in place of the tips iirc.
 
Posted by 707vibrantcobra93 (Member # 4702) on :
 
I believe it's 93Db at 3k rpm at 3 feet which is bullshit because you can buy dealership modified vehicles with "sport tuned" exhuast which is louder than that. California, fucking amazing. How many fine officers of the law issuing these tickets have stock exhuast and there suv/trucks/cars and so on...
 
Posted by 35thanniversary (Member # 2226) on :
 
Damage. Thanks for the advice. I guess im going stock. State ref told me 95db is max. My farts are louder than 95db. Even the shop teacher in the next bay over was surprised i hit 122 wit magnaflows. This is whack man. Cant believe im gettin sweated over mufflers that are and were sold legally. Yeah thanks Rosette. [BS flag]
 
Posted by essasin (Member # 4741) on :
 
Which Magnaflows are you running? Are you running the oval/canister shape ones?
 
Posted by 35thanniversary (Member # 2226) on :
 
Its the ones that look like reg mufflers (oval) and not the long cans that look like glass packs. Haha. Why wassup?
 
Posted by essasin (Member # 4741) on :
 
quote:
Originally posted by 35thanniversary:
Its the ones that look like reg mufflers (oval) and not the long cans that look like glass packs. Haha. Why wassup?
Just wondering because I've heard cars with the regular magnaflow catback and like everyone else I'm really surprised those hit 122db. If you want something that is really toned down, the Borla Pro XS is as quiet as they get.

Officer Rossetti is still going at it. I swear everyone has had a run in with him or at least knows someone who has.
 
Posted by Slowback (Member # 6348) on :
 
^ what town is this cop in? Sounds like he owns a hybrid......It would be some shit if this cop owned a Harley with straight pipes or some shit like that.
 
Posted by sleeping stallion (Member # 8162) on :
 
wow thats strange i passed here in modesto with stock manifold stock h and single chambers dumped. he even put it on the paper passed with flowmasters.
 
Posted by 92stangLX (Member # 3252) on :
 
wow.. i have never even heard of having a rep to check your db level on your exhaust.. that fucking sux!

Let's fire some more teachers so we can hire more doods to shove more shit up our tailpipes... lol [Roll Eyes]
 
Posted by 50 Deep (Member # 6216) on :
 
Buy a set of dynomax race bullets and have them welded in front of your mufflers. They will act as a resonator to quiet the exhaust and won't hurt your exhaust flow. Should pass with no problem. Mufflers are like 40 a piece.
 
Posted by built95faleen (Member # 8828) on :
 
my 95 was loud as hell and when i got a ticket for it i put my plates on my little sister's 94 which was the same color and the cop signed it off. her car was stock with an o/r h pipe and flows and it blew a 93. later found out how much trouble i could have got in. not gonna do that again lol
 
Posted by 35thanniversary (Member # 2226) on :
 
thanks guys. i appreciate all the help/advice. Rosette is in Fremont so beware. sometimes he's on a motorcycle, sometimes he's in a charger and sometimes he's in a truck (from what i hear). so if you have to go through fremont, keep those rpm's down under 2K [Cool]
 
Posted by Secnd2nun64 (Member # 1431) on :
 
Have you unbolted your pipes to check and see if the cats still have stuff inside them and are not burned out?
 
Posted by 35thanniversary (Member # 2226) on :
 
No i havent, but would i be able to pass smog if they were burnt out?
 




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