| the easier the engine can breathe then the easier it can produce power in other words it will be more efficient
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2004 LB7
Allison 5 speed
S & B CAI
275/65/18 Toyo AT on Weld EVO Velociti 8
2" leveling kit (GM green torsion key)
Wish List: Quadzilla Stealth 2, 4" turbo back single exhaust |