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Ships within 48 hours · Estimated delivery Aug 28 - Sep 2
Chain-only install — no crank hub removal or timing disassembly needed
RVG's precision-mandrel bent downpipes open up the exhaust flow your turbo desperately needs to hit higher boost targets and eliminate that sluggish mid-range response
which keeps the complexity manageable for experienced techs
Lead time is typically 4-8 weeks as each turbo is made to order
An experienced BMW DIYer should plan for 3-4 hours
F15 N55 High Flow CAI System engine-n54 Chain-only install — no crankYour F15's N55 single turbo is starved by restrictive factory intake plumbing that chokes airflow right when boost pressure peaks. This complete cold air intake system eliminates those bottlenecks and feeds your turbo the volume of dense, cold air it craves to hit higher boost targets consistently. Performance Gains Expect 15 25 HP and 25 35 ft lbs of torque with supporting modifications, plus noticeably sharper throttle response throughout the rev
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