Drivetrain (Cooper S) MINI Cooper S (R56) intakes, exhausts, pulleys, headers, throttle bodies, and any other modifications to the Cooper S drivetrain.

Drivetrain CNT Downpipe Exhaust Leak at Manifold

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Old Jun 14, 2017 | 09:46 AM
  #1  
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JewFro
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CNT Downpipe Exhaust Leak at Manifold

Hello Mini friends

I bought a used catted CNT downpipe on the forums last year and have always had an annoying exhaust leak at the manifold until the car fully warms up.

At first I thought it was a damaged gasket and replaced it but its actually likely a slightly warped CNT flange that conforms as it warms up.

So my question is this... Do I bite the bullet and buy a new downpipe or try stacking two gaskets together?

If a new downpipe is recommended what is the general consensus on catless downpipes? WMW and Miltek? Its tempting to just get an ebay pipe but I don't want to wind up in the same boat.
 
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Old Jun 14, 2017 | 03:44 PM
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njaremka
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I like my WMW pipe
 
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Old Jun 14, 2017 | 06:42 PM
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Miltek here, I actually ordered WMW pipe but he wasn't able to fab at the time. Pipe fits great been on for 50k miles
 
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Old Jul 11, 2017 | 01:19 PM
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Ended up going with Milltek, thanks for the recommendation!
 
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Old Jul 12, 2017 | 07:40 AM
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Find someone with a belt sander and sand it flat.
 
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