noisy new exhaust

[davidmason]

HI FOLKS
I'VE RECENTLY BOUGHT A NEW STAINLESS EXHAUST SYSTEM FOR THE PICKUP AND IT SEEMS REALLY NOISY ' VERY RASPY AND BOOMS AT CERTAIN REVS . IT HAS BEEN FITTED CORRECTLY AND IS NOT LEAKING .
I WAS WONDERING IF I COULD FIT AN ADDITIONAL SMALL SILENCER BOX IN THE LONG TUBE SECTION AFTER THE EXISTING STAINLESS BOX .
ANY THOUGHTS ?
CHEERS , DAVE

[Scotland]

Good morning, sounds like we both have similar problems but from opposite angles. My son wants the car to be noisier rather than quieter and this has been easily achieved by shortening the tail pipe.

If though you are finding the new exhaust noisier than you expected, I take it that this is relative to the previous exhaust system on the same car? If not and you are comparing it with another vehicle it may be the other car has better sound proofing than your car.
Alternatively you may just need to check you have used all the correct exhaust supports and brackets - any missing or poorly located ones could give you an irritating resonance - might even be worth trying to relocate the on underneath the rear passenger seat by an inch or so either way.

Finally of course you may just have a poor exhaust box with the baffles either missing or in the wrong place!. Putting in a further box is no doubt an option but will probably be awkward and expensive.

Finally try comparing it to a friends morris exhaust or contact your local club for assistance [/u][/i][/b]

[Willie]

If you changed to a stainless system after a mild steel one then it
will be louder anyway! I have fitted an additional stainless straight
through box to my convertible and it gives a pleasant sound and
also gets rid of that awful roar on the overrrun! The problem is that
to have the extra box made to my specifications (to fit between the
rear spring and the petrol tank) cost more than the whole stainless
steel system! I tried using the old box from the original mild steel
rig and it did the trip noisewise but didn't last long. The rear box
does not get hot enough and will contain condensation which will
rot it through very quickly unless it is stainless. You could search
through 'Kwik fits' stock to see if you can find a suitable item which
should be quite cheap!

[Kevin]

Yes as Willie has said most owners notice the increase in noise when changing to a Stainless System.

[Peetee]

The rear box
does not get hot enough and will contain condensation which will
rot it through very quickly unless it is stainless

Alas many people have found to their disgust that 'stainless' refers to the pipework and not to the internal baffells. the result being a very shiny and VERY noisy exhaust.

[turbominor]

other thing to remember is your old exhaust was probably full of soot and muck.. so it would be quieter.. My stainless big bore is very noisy but i am loving it!!

[davidmason]

THANKS FOR THAT PEOPLE , SOUNDS LIKE I,VE GOT TO GET USED TO IT , MAYBE I'LL COME TO ENJOY THE NEW NOTE IN TIME ! REGARDS , DAVE

[minor_hickup]

look on the bright side, you didnt have to pay extra for a noisy exhaust, many people do

[aupickup]

i have a staunless steel exhaust on my van, engine is an 1275 ital, and is ok for noise and no rasps on overrun .
i had a van with a 1098 and again stainless steel exhaust, a bit noisier and loud rasp on overrun until i cut the tailpipe at 45 degrees and no rasp on overrun.

i think it just depends on what i do not know

[Kevin]

Hi Dennis the 1275cc uses a different manifold and exhaust which eliminates the sound, if you wish it restored re-fit the original type exhaust manifold and matching exhaust from a 1098cc and it will be restored, however you will probably loose a touch of performance.

[aupickup]

no want to keep the bigger exhaust
just wanted to point out on vans and pick ups that if the tail pipe is cut at an angle then that can quiten the exhaust