Unsilenced exhaust

[Boatbuoy]

No, 4.2 exhaust is slightly smaller diameter than the 4.5

That's why I have two sets! My 4.2 tails got damaged so I sourced a replacement set, which were 4.5's and they didn't fit.

[jamieduff1981]

What sort of condition are you spare 4.5 tails in?

[madjules]

Anyone tried upgrading / improving the soundproofing in a Cerb?

My sports tails sound awesome and I don’t want to remove them, but I do have to resort to ear plugs on a long run!

I’m toying with the idea of stripping the back seats, carpets, etc and upgrading the soundproofing as a possible solution?

[Boatbuoy]

jamieduff1981 said:

What sort of condition are you spare 4.5 tails in?

Reasonable, a few scratches but nothing that wont polish out as far as I can remember. They are in the workshop which is 150 miles away so can't look right now. If you can hang on until the B/holiday w/end I can send you some pictures then, and if you can make use of them you're welcome to them for the cost of P&P.

[Superjuiced]

Hey russ. not yet, I'm done at the back apart from bolting the diff to drive shafts but still got to get the starter and pas pump refurbed. I'm moving in July so I've got have it done by then!!

[jamieduff1981]

Boatbuoy said:

jamieduff1981 said:

What sort of condition are you spare 4.5 tails in?

Reasonable, a few scratches but nothing that wont polish out as far as I can remember. They are in the workshop which is 150 miles away so can't look right now. If you can hang on until the B/holiday w/end I can send you some pictures then, and if you can make use of them you're welcome to them for the cost of P&P.

Thanks! I'm moving house in 3 weeks so am in no rush to accumulate any more stuff in the short term My exhaust works fine but sounds a bit lame.

[Vee8ight]

I have electric valves on mine, with a custom exhaust, so switchable noise I know it's in the region of 143 dB with the valves open

Was thinking about doing a production run?

[robsco]

That sounds fantastic. Do you mind if I ask the approximate cost?

[Vee8ight]

robsco said:

That sounds fantastic. Do you mind if I ask the approximate cost?

Mine? Parts cost? (As fabricated myself)

[Byker28i]

madjules said:

Anyone tried upgrading / improving the soundproofing in a Cerb?

My sports tails sound awesome and I don’t want to remove them, but I do have to resort to ear plugs on a long run!

I’m toying with the idea of stripping the back seats, carpets, etc and upgrading the soundproofing as a possible solution?

I run with an ACT quiet system, decatted and it's fine. It has extra silencing in the long centre pipes

[tony cerbera]

i have straight through exhausts on mine and it sounds explosive when i fire it up, i love it, would recommend it big time. pops like gun shots and i love it. when i had pipes put on and heard it fire up i bloody jumped out of the way ! sounded like a top fuel dragster on tick over ! go for it, some of my neighbours moan but i cant hear them !

[Mr Cerbera]

Bollycerb said:

Mine was measured at 123dB and it does get a bit wearing on a longer journey. But the sound on shorter trips is awesome!

Ummm, I don’t know which Time/Space Continuum you live in but, given that each increase in 3 db requires double the sound power, then 123 db would be 64 times louder than 105db…..

Vee8ight said:

….I know it's in the region of 143 dB….

Emmmm, that’ll be 4,000 times more powerful and you’ve either mustyped or your grey matter has become porridge