Manifold Exhaust Twin Point Injected Mini Cooper

Manifold Exhaust Twin Point Injected Mini Cooper

Manifold Exhaust Twin Point Injected Mini Cooper
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$499.95
Upgrading to the latest model exhaust can be a big benefit to many of us. This high flow cast iron manifold can be installed on any Mini; use with the RC-40 exhaust system.
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Related Technical Articles:
How to pick the correct exhaust manifold for Classic Mini Coopers
Created: September 28, 2000
The third stroke, that following the compression stroke, of our four stroke Mini engine is the only one producing power. The other three consume it. Here we’re looking at with exhaust manifolds, so what we need to consider is how to minimise power consumed on the exhaust stroke as the piston pushes the spent gases out.
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Pros: together with the matching downpipe, this is supposed to yield equivalent breathing to a LCB or Maniflow header, but with less noise, on engines up to about 80hp.

Cons: The oxygen sensor hole needs to be plugged. Though having this is VERY useful to use for rolling road tuning, the hole does need to be filled in with something all of the rest of the time.

Other Thoughts: To plug the O2 sensor hole, you have two choices: - get an old O2 sensor from a scrappie and use it to fill the hole (just look for one 18mm diameter). or - get an "engine plug" from your local hardware store 18-1.5 (metric, 18mm dia, 1.5 mm / thread), and a matching copper washer (anything other than copper or aluminum will melt). Any foriegn auto parts store will carry an assortment of copper sealing washers.
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