12 replies to this topic

[josh austin mini city e 82]

Hi guys, in the process of having my 1275 engine fitted plus all the parts you get in a stage 1 kit. I have an rc40 exhaust to be fitted to my lcb and I'm just wondering wether to have a twin or single box. Is there an advantage of one over the other ? And how much louder is a single box ?

Any advice much appreciated !

Thanks
Josh

[Mini_Alex]

Lets just say the rc40 twin box is really quiet! So i changed mine to the rc40 single box and its not overly loud it's just got a nice note to it.

 

Also I found that the twin box would scrape over speed bumps.

[KernowCooper]

I had a twin box RC40 on my 1330 and it was really quiet to the point of near stock exhaust! I changed mine to a Maniflow 1 3/4 single box and really pleased now.

[creakyjaws5533]

My twin box is sat really high knocks againsts the tunnel loads and scraps on some speed bumps

[Gulfclubby]

Can't speak for the twin box RC40, but the twin box Maniflow is excellent both in terms of sound and performance.

[josh austin mini city e 82]

I had a twin box RC40 on my 1330 and it was really quiet to the point of near stock exhaust! I changed mine to a Maniflow 1 3/4 single box and really pleased now.

Ok, did you ever try the rc40 with single box ?

[josh austin mini city e 82]

My twin box is sat really high knocks againsts the tunnel loads and scraps on some speed bumps

What was it like in terms if sound ? Loud or quiet ?

[creakyjaws5533]

Quite little bit of noise when I accelerate i need it quite as my neighbours basically hate minis :L

[Mrpeanut]

I've got a twin box rc40 with a cooper freeflow and ramair filter. The sound is fantastic, a nice thoaty carby sound with a sweet exhaust note when revving but quiet enough when cruising.

Personally I think the twin's a nice balance. If you want more noise then go for the single.

[Bungle]

i went for a RC40 single box

 

it's slightly on the noisy side but can live with it and the kids can still sleep in the car

[josh austin mini city e 82]

Ok cool, think ill just go with the single box, ill just have to wake a few neighbours up when I go set off to work at 6 :)

[KernowCooper]

Low down it wont be bad its when you give it some

[Vipernoir]

Having used RC40 single & twin and assorted Maniflow products, I use twin box RC40s as the best performing and nicest noise.

Single box versions are slightly louder but still not excessive.