Loud exhaust

[ilovespeed]

I have a Caterham Seven and have recently fitted an exhaust which has no silencing and is virtually a pipe coming straight out of the manifold with no cat to go through. Although it is good fun, it is obviously very loud. I am considering doing some trackdays in it but I know many tracks enforce noise restrictions and I am sure my car will exceed them. I am therefore asking if anyone knows of any device e.g. a temporary muffler that I could stuff up the tail pipe, to quieten it down temporarily. Also I’m sure my neighbours will be getting quite annoyed soon!

Thanks for any help in advance,

Geoff

[dannylt]

Refit the standard exhaust? Very likely the easiest and most likely thing to help, unless it's bike engined in which case you're probably still in trouble. You will need a lot of add on silencers to get down to any reasonable limit.

Alternatively, only book days without noise limits, but they're getting all the more rare.

danny

[m-five]

You have three options:

1) Fit a standard exhaust & silencer
2) Fit a SuperTrap baffle
3) Fit an exhaust where you can remove/refit the silencer when appropriate.

I know one guy who has a silencer cartridge where he simply unclips the side of his exhaust pipe (level with the driver's seat) and drops it in if it's too loud!