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up to 6 weeks
internal cross sectional area is increased by approximately 78 percent
Dinan's Performance Spring set for the F97 X3M and F98 X4M provides greater control over body roll by virtue of carefully calibrated spring rates
The intercooler may also be used in conjunction with the Dinan oil cooler and Stage 3 Engine Software with increased boost pressure to take advantage of the improved intercooler efficiency
Dinan High Flow Intake System - 2006-2010 BMW 550i Brake Kits up to 6 weeks'Dinan's high flow intake system for the 550i dramatically increases intake air flow volume and velocity as well as ensuring the lowest possible intake air temperatures for maximum power gains, as well as improved throttle response. The system takes full advantage of the ram air effect by adding a second air inlet in conjunction with the stock configuration, force feeding more cool, oxygen rich air to the enhanced air box. The system includes a