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Looking to add more low end power to my 05 Bonneville GXP. My car has the same engine as the seville SLS 275hp at 300 tq. Do they make headers for the 275 hp NorthStar engine?
Posted by: inurok
Dont everybody reply at once...
Posted by: HappyMofo
the headers arent cheap...go to http://www.gmotors.com/ for original parts. peeps like aluminum but i prefer steel... less cracking at hot engine temps even though they weigh more.