need info on 4-2-1 manifold
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From: benfleet
need info on 4-2-1 manifold
right guys just been told manifold has a crack in it 
i will be replacing it but was thinking of getting a 4-2-1 what are the pros and cons of getting one
and are the rumours true about loosing top speed and are they really worth it ?
for a Renault megane mk2
also if anyone knows if this the best manifold to go with if not please advise etc
i will be replacing it but was thinking of getting a 4-2-1 what are the pros and cons of getting one
and are the rumours true about loosing top speed and are they really worth it ?
for a Renault megane mk2
also if anyone knows if this the best manifold to go with if not please advise etc
Last edited by Conor Harrington; Mar 26, 2010 at 05:35 PM.
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From: telly tubby land
4-2-1 will generally give more torque mid range where as a 4-1 will give more top end power
some people say that a 4-2-1 will flow as well as a 4-1 until about 8000rpm though, have a look at what other people have done with that engines and the gains theyve made
the effects on a modern car though are minimal as the engines are far more presise
some people say that a 4-2-1 will flow as well as a 4-1 until about 8000rpm though, have a look at what other people have done with that engines and the gains theyve made
the effects on a modern car though are minimal as the engines are far more presise
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