Are you saying this because they are EL or because of the brand. There are other EL headers out there that are far cheaper than TWE. How they compare in the amount of power/torque gained, I don't have any hard numbers, but the CNT EL headers I have definitely gave me a decent bump.
Also, I do not believe that TWE makes any products for the '08. At least not that they list on their website.
Originally Posted by Back Road Runner
p.s. TWE headers are the only ones you should be looking at if you're actually serious about power gains. If not, you're only fighting your own goals.