Janspeed

Manufactured to origonal equipment standards, this performance rear silencer from Janspeed is made in nothing but the highest grade stainless steel. Each backbox comes with a lifetime guarantee and offers advantages in performance and sound quality to that of the standard silencer.

Brooke Exhaust System

Larger diameter bores than the official Lotus system. Without doubt the best system available on the market to day.We have received many compliments on the sound quality.

There words not mine.

Bell and Colville

Looks like this has been discontinued
and they are now selling Janspeed.

Link pipe

For track use the link pipe replaces the catalyst to give you that little bit extra horse power. Note catalyst is required for MOT tests.