Mugen RR

Hello! I´m bought an Invidia Q300 in this page. I tested the sound and to 9000 rpm the meter is 130db. Is this normal? The car only have a berk test pipe,

https://h-tune.co.uk/invidia-q300-ti...m-honda-s2000/

Chuck S

That's how loud this POS exhaust is! If your employer subjected you this much noise you'd need ear plugs under ear muffs. A-weighting Slow-response is the protocol. About 27" at a 45° from the exhaust tips. 130 dBA is louder than the typical chain saw.

It's a shame you didn't check here before buying. Ya gotta hear any exhaust candidate in person. Sound clips are less than useless. I only measured mine at 105dBA with the a high flow cat. Came off the car with in two or three weeks.

-- Chuck

kevinS2OOO

Q300 with TP is the worst combo. I had it for a week or two. Couldn't stand it.

BoboTheMonkey

I have the Q300 single and it is pretty quiet. Way quieter than my Subaru with an HKS exhaust. That is insane! I have no idea how you got it to be that loud. I thought the Q300 was supposed to be one of the quieter exhausts? 130DB is super loud, was this right out of the muffler?

Fokker

The majority of Q300s are very loud; occasionally people will get one that is quiet, but most are well over the 100 dB mark.

Charper732

I second this

X13A

you should hear my Q300 with headers and 70MM HFC... el oh el was it stupid.

gotta hks single now... so much better.

davidc1

What did you test it with, and from how far away?

If you tested it with any cell phone app (android or iPhone) it means absolutely nothing as the apps can't be calibrated and are inaccurate. They are absolutely meaningless.

It's also meaningless if you tested it right at the tip.

130db will damage your hearing within minutes. I am sure it was not anywhere near this. How do I know? Take a look at this chart (which is valid).

Military jet aircraft take-off from aircraft carrier with afterburner at 50 ft (130 dB).

Comparitive Examples of Noise Levels | Industrial Noise Control

Chuck S

The Q300 is an exhaust designed for and sold to high schoolers as a public service to show them what AlfaHotels they can be with a little effort.

Actually my iPhone Ap matches my OSHA calibrated noise meter in the 80 to 110 range (only tested area).

-- Chuck

mertb

cant wait to get rid of my q300.

Still looking something light and silent