In previous segments of Project 987.2 Cayman we worked on our suspension and brakes to prepare our chassis for more power. Now it’s time to attack our 9A1 engine to get more naturally aspirated power and better reliability in track use. In this segment we will be replacing our factory exhaust system with some cool parts from Fabspeed Motorsports. The stock factory exhaust is very heavy, a lot of this is because in this cars case, being a mid engine, it must quiet the exhaust note in a very short distance. This means big heavy mufflers. Since this is a track focused car, being quiet isnt much of a priority but adding power and getting rid of weight is!
The factory exhaust manifolds are also heavy and not the best suited for making power with a lot of neck downs and flat spots in the tubes for chassis clearance.
To install our race exhaust system we first remove the under chassis braces that connect the cross member to the unibody.
Next we remove the triangular engine plate. As a note, do not put the cars weight on its wheels with these braces off, it can affect the alignment or even damage the subframe if you attempt to drive the car with these parts not installed on the car. If you accidentally put the weight of the car on its wheels, the alignment must be checked afterwards.
Next we removed the oxygen sensors from the manifolds and the exhaust. It’s easier to do this while these parts are on the car so you can get more leverage on them.