Vehicle & Technical > Range Rover

3.5 exhaust noise?

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DEANO3528:

--- Quote from: "Bowie" ---*DON'T* take the centre box out, it will sound horrid and not give the correct back pressure the engine requires.

If you are to remove anything, take the rear silence off, if needs be replace with a straight through item -this is where most of the silencing it done.

Bowie.
--- End quote ---


Erm, go take a look under one.

The rear box is already a 'straight thru' type!
I did have just the single pipe rear box on my pick-up. The restrictor type front box has more to do with hushing up the V8 than providing back pressure. Being a pick-up, resonance within the cabin is not a problem.
Shed has two single pipe rear boxes, one in place of that ½ ton piece of junk front box and sounds like this

And if you go on Youtube and type in 'Fun with SLROC' or 'More Fun with SLROC' there are clips of Shed doing what it does best.

Bowie:
OK, when I say 'stright through' in this case, I mean a 'cherry bomb' type silencer, which does everything BUT silence the exhaust....

It does sound nice, but someone had replaced my middle box with piece of pipe......

a) it sounded cack,

b) it screwed up the back pressure, when I changed it, the engine was totally different.......................................

So.... don't remove the middle box ;)

Range Rover Blues:
My sports pipes both have 2 straight through boxes on them, rather than the centre one being the staggered type.

Lets a lot more smoke through on startup :? , had me worried at first.

Brian the Sn@il:
I have taken the rear box off mine, and has made only a slight difference with noise.

Next job is to do something with the centre box, not sure what yet as im still looking into it.
THe way to go would to be to take out the Silencer wadding from the box. So that would leave the back pressure there but let the noise travel through ;)

Like i say im still looking into it ;)

kemo:
as the rover v8 is a buick engine i put a american turbo muffler in mine and now it sounds like a yank is suppossed to sound and at a cost of £29.00

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