16 replies to this topic

[LewisS303]

So I've got a 1991 mini cooper carb. Im wanting to change the exhaust system, something stupidly noisy as i don't drive her much, she's doesn't have a radio so was thinking get a noisy exhaust instead. She's got a stage 1 exhaust kit on at the moment, was thinking of taking off the center pipe which has two silencers and the backbox and putting a straight through pipe then maybe just putting an exhaust tip on the end. Has anyone done this before, any problems? I know that the police are going to hate it, but i live in a very rural area so it shouldn't be a problem, also i dont drive her often as I'm at university. 

 

Has anyone got a videos of something similar or picture maybe?

 

My mini is the silver one.

 

Attached Files

•  mini.jpg   51.35K   11 downloads

[Batmini]

You're quite right, the police will hate it, possibly fine you, possibly force the car off road until it's rectified.

Why??? It will sound crap and i would imagine run like a dog.

Just fit a single box system, that should be loud enough (and still legal)

[Dusky]

Do you want permanent hearing damage? Because thats how you get permanent hearing damage.

[Gadgets]

You need a back box to keep manifold pressure and keep the noise down. It will drive like crap as well.

[GraemeC]

 

Do you want permanent hearing damage? Because thats how you get permanent hearing damage.

 

 

 

Pardon? 

 

Edited by GraemeC, 04 December 2015 - 08:42 AM.

[Mon_Papillon]

Go for a large bore single box system.

[fwdracer]

Some single box system will ensure you have a roadside chat with a not very accomodating policeman. An RC40 rear box only is pretty raucous and they are the quietest system.

 

Straight pipe? Google the Swiftune Longman Rep 1275GT at Goodwood this year.

[racingbob]

we used to run straight thro in mini 7 in the 70's in was very noisey to noisey

 

just put straight thro with rc40 on the back or a maniflow or have a chat with maniflow at salisbury

[lawrie124]

ever started your car without the exhaust on?

 

dreadful; forget it!

 

as said above, single back box (I prefer maniflow)

[IainNeon91]

I've done this before, by all means try it out yourself (It's a bit of a laugh). 

 

While I was waiting for my mid box to arrive, I just put a straight piece of exhaust pipe onto the manifold. I started it up, revved it a few times but daren't drive it because I probably would have gotten an ASBO. It was that loud!   It didn't sound good at all either, lost all of that 'mini rasp' 

 

Have a listen to the exhaust set up I made for my mates track mini, it's just using the mid silencer from a twin box RC40.

 

[cal844]

I have a large bore single box system on both my Minis....

My 998 has:: 2 inch manifold and link pipe onto a 3 inch piped back box

My 1275 has::
1.75 inch manifold
1.75 inch to 2.25 inch Y piece
2.25 inch to 3 inch link pipe
3 inch piped back box

By the way the 998 is louder ;)

[coopdog]

I will be buying a by pass valve soon and adding that to my exhaust, but I have a turbo so that makes the exhaust quieter anyway, but I will have a straight pipe and a silenced exhaust at a flick of a switch haha

[mininuts]

Single box RC40 or Maniflow, 1.75" - nuff said

[JetBlackEreg]

I've done this before, by all means try it out yourself (It's a bit of a laugh). 

 

While I was waiting for my mid box to arrive, I just put a straight piece of exhaust pipe onto the manifold. I started it up, revved it a few times but daren't drive it because I probably would have gotten an ASBO. It was that loud!   It didn't sound good at all either, lost all of that 'mini rasp' 

 

Have a listen to the exhaust set up I made for my mates track mini, it's just using the mid silencer from a twin box RC40.

 

 

I can vouch for this exhaust, sounds awesome.

 

If not you could fit a dtm style exhaust they're anti social.

[LewisS303]

Okay so straight through pipe to single back box it is, thanks very much, might make a video of when i put the straight pipe on to hear the noise and post it here though haha, thanks for all the responses