Its quick or looks.
Depends on what your goals are, most normal mods are covered OK by the stock system with is a CAI & can get to low 12 high 11 times.
Most if not all the top end 335/135 at Drag Times are some version of the DCI system. If you like to stand around with the hood up Dinan is first class. I would never buy one but if it came with the car I would not take it off either.
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Kevin
Dravit Gray, Black Leather, Moonlight Roof, Red Calipers
2022 M4C - 2020 Z4 M40i - 2023 FORD Expedition XLT Max 4X4 400BHP - 2009 V-Star - 1998 Ranger 4X4 5MT - 1965 Cobra (R) 5MT - 2023 Jeep Wrangler Sport S 6MT
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