R300 - Trackday Noise Limits

[Eriedor]

Finally decided life's to short to wait to own a house with a garage to buy a Caterham so I'm purchasing a car cover and going alfresco storage! Hence I'm currently in the market for a supersport/light 140bhp or R300K.

One thing I'm concerned about with the R300 is it's ability to get under most track day noise limits (100db).

Anyone had any issues with static tests or drive bys? Do roller throttle bodies, 4-1 exhaust systems etc affect it's db output significantly enough to avoid them?

[TeflonT]

Mine was 97db when tested at Cadwell a couple of months ago.

[curley]

My R400 ( K ) is always below 100Db when tested but watch the silencer , you may need to swap for the larger box to be sure .

[Steve Campbell]

I've been doing track days for 8 years with 2 of my mates ..both with "standard" R300 k's. They have never had a problem getting under 100Db

[grenpayne]

Mine was measured recently as 98db at Castle Combe. R300K engined car with standard 4 into 1 primaries and normal silencer.

[MikeO996]

My R300k has been a bit marginal a couple times (Donington and Bedford), but repacking the exhaust sorted it out.