exhaust pipes

Chris&Adam · Post by **Chris&Adam** » Mon Dec 05, 05 9:59 pm

Ok guys, does anyone know the MOT ruling on where exhaust pipes should exit ? Do they have to clear the car body? Does the age of the car affect this? ( different rules for different years). Thanks in advance for any help you can give...................Chris.

Anonymous · Post by **Anonymous** » Mon Dec 05, 05 10:17 pm

mine point down in front of the rear axle, not failed an mot yet with them, my last car was also the same

latil · Post by **latil** » Mon Dec 05, 05 10:35 pm

From memory there's nothing to say that you even have to have a silencer box in the system,let alone where the pipes should end. So long as the system effectively reduces the noise.
Go to a library and have a look at the current testers manual. I've had pipes coming out all over the place and never had test trouble yet,most would fail Construction & Use regs though,not a prob unless you're sva testing

Chris&Adam · Post by **Chris&Adam** » Mon Dec 05, 05 11:48 pm

Thanks guys for your info.....I will be able to sleep better tonight, thanks again.

Holly · Post by **Holly** » Tue Dec 06, 05 12:05 am

latil wrote:From memory there's nothing to say that you even have to have a silencer box in the system,let alone where the pipes should end. So long as the system effectively reduces the noise.

Which is good, as that means I can run straight pipe

TrevD · Post by **TrevD** » Tue Dec 06, 05 7:12 am

wots an exhaust pipe , mopars sound better on open headers

Blue · Post by **Blue** » Tue Dec 06, 05 7:22 pm

The exhaust system is supposed to be long enough to terminate beyond the passenger compartment and exit at the rear or side of the vehicle, and noise is supposed to be not more than 90db at so many feet, I can't remember exactly. MOT stations don't normally have the means of testing the noise so that's down to the testers opinion. By the book even a quiet system that ends at the axle and underneath the car should be a fail but many, testers will pass it.

TrevD · Post by **TrevD** » Tue Dec 06, 05 8:19 pm

so fenderwells that exit through the rear of the front wings are ok if i only drive in reverse

Anonymous · Post by **Anonymous** » Thu Dec 15, 05 1:05 pm

had n problem with these where they are, only use tiny moroso race mufflets (3") which dont make a whole lot of difference to noise ! the mot guy did mention something about the noise levels, but i couldnt hear him, not much they can do about it anyways,

we did have a thread on this subject a long time back, i'll see if i can find it, but i think as long as the exhaaust is whole and not leaking, they cant do much about it.

here's the link http://www.mopartalk.co.uk/mopartalk/vi ... e+mufflers