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Just wondering if anyone might be able to help. My buddy had me pick up an 03 6.0 for him with 55000km to replace his 04 6.0 (240000 km) with blown head gaskets. Before he installed the 03 he replaced the head gaskets, installed arp studs and egr delete. His issue now that the truck is back...

TTS Xtreme ECM with 3 position switch. Here are the specs from their website. http://www.ttspowersystems.com/GM_Diesel_programming.html TOW: +50 RwHp* +100 ft-lbs*Switchable Option 2: $1295Tow, Race, Xtreme RACE:+120 RwHp* +240 ft-lbs*Xtreme:**+245 RwHp* +490 ft-lbs* I purchased this ecm from...