best exhaust for Duramax

Who has the best exhaust system for Duramax?

Programmer?

Propane injection?

Reply to
junkncrud
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don't know about which is best but I thinkg Gale Banks and a place called Bully Dog seem to be big in this.

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Reply to
Elbert

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After you browse the site call and talk to Bill Heath if you have questions. Good guy to deal with and he knows his stuff!!

Snowman

Reply to
Snowman

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