Exhaust Manifold 2001-10 GM 6.6L The tiny digital controller inside

The tiny digital controller inside the compact housing gives you the ability to program the rpm activation points through the easy-to-view LED panel and two programming buttons

Fender Brace - Straight Razor Style - Stainless Hardware - Aluminum - Natural - GM F-Body 1967-69 - Pair

60 Ratio - Roller Tip - Chromoly - Small Block Chevy - Set of 16

Valve Spring - NexTek - Dual Spring / Damper - 575 lb/in Spring Rate - 1

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Exhaust Manifold 2001-10 GM 6.6L The tiny digital controller insideExhaust Manifold Full Bore Ductile Iron EGR Port GM Duramax 2001 10 Each