Vehicle & Technical > Discovery

tubular manifolds / exhaust system

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Eeyore:
Swapping your manifolds'll make next to squat diffrerence to the noise or your performance - there are much more effective ways of eeking some more horses out if thats what you want.

Ditch the centre box on the exhaust - she'll sound better for it - it's cheaper and you shouldn't fall foul of the MOT man.  :wink:

Cheers
 8)
Eeyore

disco-v8:
thanks for all the help lads,

but i still need to know if the rangie Y piece is the same as the disco's????

Henry Webster:
I'm not sure, though it would be useful to know.  I do know that the non-cat y-piece is a different pipe diameter to a cat'd y-piece.

Range Rover Blues:

--- Quote from: "Eeyore" ---Swapping your manifolds'll make next to squat diffrerence to the noise or your performance - there are much more effective ways of eeking some more horses out if thats what you want.

Ditch the centre box on the exhaust - she'll sound better for it - it's cheaper and you shouldn't fall foul of the MOT man.  :wink:

Cheers
 8)
Eeyore
--- End quote ---


Tell me more mate :D

I'm fitting a stainless tubular header system, it was a bargain S/H and I'm sick of replacing the downpipe gaskets every month, my 5.0 just spits them out :shock:

Now I didn't notice much difference when I fitted the sports system to Blue, it reves a bit more freely that's all.

daveyravey:

--- Quote from: "Range Rover Blues" ---

Now I didn't notice much difference when I fitted the sports system to Blue, it reves a bit more freely that's all.
--- End quote ---


Thats the main reason for fitting a " free flow " tubular manifold & system.

It enables your engine to get rid of the exhaust gasses quicker, letting in more fuel/air mix into the combustion chamber. Hense it seems to rev a bit easier/quicker.
A good manifold & system should give you a few BHP increase over standard .
Had a RS 2000 a few years ago, the Janspeed man & system gave me another 10 bhp . Got bored with that & wanted more ! Fitted a kent rl21 cam & that gave another 8 bhp, on the standard 26/32 Weber carb.

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