The standard Evora Exhaust Manifolds are very restrictive.
This is caused by the use of so called pre-cats. These catalysts are mounted as close to the cylinder head as physically possible.
The major disadvantage of such a construction is the lack of flow in the exhaust manifold.
elise-shop.com has teamed up with Larini systems to develop a full double 3 into 2 into 1 exhaust manifold for the Evora. This system does not only get rid of the dreaded pre-cats, it is also of a tuned length which will provide a serious power and torque hike!
Not only will you receive the actual manifolds, you will also receive plug and play extension leads for the oxygen sensors. These are needed as the oxygen sensors are being moved away from the cylinder heads towards the main catalyst.
Removing the pre-cats will not get you in trouble with MOT emissions.
Although the pre-cats have gone, you do need to install oxygen sensors. As these sensors are normally located just before and after the pre-cats, you will now have to install the sensors before and after the main cat. This means you either need a sports cat (which will come with two oxygen sensor plugs rather than one) or you’d need to work with MIL eliminators to elimate the need for secondary sensors.
Up to MY2012 all Evora’s had a secondary cat, from MY2012 onwards, only the Federal cars have a secondary catalyst.
As you might imagine not only the power but also the noiselevel of the Evora will increase.
This is a small bore system, so it’s not compatible with Evora 400 onwards or Exige 380 onwards.
