The Lotus Elise exhaust is purposely built by the factory to optimize engine performance but the exhaust manifold used with the S3 is a stock Toyota manifold designed for NA applications and a lot lower flow of exhaust gases. Even with a smaller supercharger pulley, you are limited to about 260hp.
PB racing developed this exhaust manifold for use on their Lotus Cup Italy race cars.
Comes with a downpipe and manifold. Fits the stock back box.
Perfect, an incredibly good value for money product.
We suggest using new exhaust manifold nuts and gasket when installing.