this is a preventive mod, you need this if you are runing on a chipped ECU, and about the sound, its sound pretty cool, but i cant describe sound, hahaha check for sound clips and videos on the forum, you may find some.

 

ok, if i dont sell this things today i´ll put them on ebay next monday. $160 dlls shipped to the continental US for both, or $90 each

 

i might be interseted....pmed you

 

sold, thanks anyway