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  1. QUESTION: Flowmaster 40's w/ 12 inch glass packs

    Performance Modifications
    I am searching places around me to do this. I've been getting quotes of around $450 to $500. Should I just let them use the glasspacks they have there or should I buy all the stuff -- and have them just do the labor? Any suggestions would be great. I'm in the Hollywood area by the way. Thank you.