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      12-23-2012, 09:03 PM   #3
Drives: 128is
Join Date: May 2009
Location: N. Vancouver, BC

Posts: 38
iTrader: (0)

My experience is similar to yours - I only feel the flaps activating under part throttle. However I haven't even got through a full tank of gas since installing the manifold and have no tune yet.
'09 128i 6Sp Man Sport (263 18" wheels), Space Grey / Coral Red leather, BMW Perf Intake, Exhaust & Suspension, 3-Stage Manifold, AA Ver 2 tune, Carbon Filter & CDV Delete, Yoko S-Drives
Light_Em_Up is offline   Canada
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