we have an 04 gmc w a 6.6, my problem is we need someone who specializes in the duramax whose located in northern california, i'm talking like wrist pins and pistons, guys truck has a serious knock after he had injectors and pump replaced, in other words this truck has more serious problems. can anyone refer me to anyone whose damn good and in norcal, thanks

 

Siskyou Muffler and Diesel Performance in Mount Shasta. Talk to Matt Ray and tell him Scott from Alligator sent him