Sorry to post in this thread but I got a similar question. This relay pictured above keeps going out in mine. I replaced it 3 times now. They only last about a month then go out
http://www.grandprixforums.net/my-06-gp-gxp-72403.html OBX headers, TEP tranny cooler, ls1 IM fuel rails and injectors, ls2 TB, ls7 MAF, full custom exhaust, Quad retro headlights, full out front and rear suspension work, tuned by HPT by me 8====>