rickya

Many thanks for your help so far, but I feel the Invidia Q300 and Js Racing 70rs single would be a tad too loud for UK track day sound regs. If I go decat they would get even louder. Though they are both great exhausts, especially like the Js Racing

As far as I can tell, the only quiet ones would be (dual exhausts) : Fujitsubo LegaliseR, Tanabe Medalion Touring, Miltek....... and I cant think of any more!

lovegroova

Mugen.

rickya

Bump

Chuck S

Tanabe Medalion Touring measures 94 dBA. I personally confirmed it on my car with a certified meter.

94dBA is still louder than the OEM system. I'd not want 98dBA which is MUCH louder -- like twice as loud. The scale is logarithmic, not linear. In a (US) industrial setting a worker is allowed two (2) hours of exposure at 94dBA without hearing protection but only (1) hour at 97dBA. 3 dBA makes that much difference. Noise level is measured about 2 feet from the exhaust tips and diminishes as that distance increases but 98dBA is still loud in the driver's seat. (There's a protocol I don't have time to link.)

The Invidia Q300 measured in excess of 105dBA on my car. Stupid loud.

-- Chuck

rickya

Thanks for that interesting bit of information, I didn't realise db were not linear. Definitely need to try and stick to under 95db, probably only going to be Tanabe Medalion or Fujitsubo LegaliseR within budget.

boys2k

J's racing 60 RS dual?

Singh_snisen

Any js products are loud but make most power compared to the others. Invidia is loud period. Ur best best is tanabe touring, T1r dual, and hks maybe.

rickya

Bump

NicoS

I have a tanabe medallion I'll be putting up for sale soon.

rickya

Pm'd