[andrewgotanelise]

Originally Posted by Trendy Exige

What do most forced induction Lotus owners choose when purchasing an aftermarket header for their car?

For instance, I contacted Trial, and they gave too little info on their header.
For example, what is the significant difference between the Trial headers from the Stock Exige S headers that is already equipped on the car? Is the piping of the headers bigger? If so, by how much? Does it weigh less than the stock headers that already on the 2007 Lotus Exige S?

I have a hunch that the dyno chart they provided on their website are slightly skewed. The dynorun was in Jan 31, 2005, therefore the header must have been tested on a naturally aspirated Exige. If the the numbers are accurate, the delta portion of the curve shows a huge significant gain on a NA Exige. If this dynograph does represent the Trial header, then I would assume that installing these Trial header will in fact increase tremendously on my Exige S since now I am incorporating it with a forced fed motor.


If anyone can offer more information about aftermarket header, I believe that would benefits anyone who plans to throw down on $1280+ for a car part.

Looks like the cam changeover is at like 2400rpms...