Dinan 17-23 BMW 540i Air Filter

While sound is undoubtedly important for a large swath of consumers, performance enhancements are equally as important to others. Common to all Dinan intake design, improvements upon the factory...

While sound is undoubtedly important for a large swath of consumers, performance enhancements are equally as important to others. Common to all Dinan intake design, improvements upon the factory...

While factory paper filters function admirably, they can be restrictive to performance goals given the material used. They also require being replaced numerous times during the lifespan of the...

Dinan's Performance Spring set for the G30 540i (RWD) provides greater control over body roll by virtue of carefully calibrated spring rates. Additionally, Dinan lowers the 540i by a 7/8" in the...

Replacement Air Filter for Dinan Cold Air Intake. Compatible w/ Dinan Cold Air Intake - E38/E39/E53 Deep pleats in multi-layered cotton for increased flow and superior filtration Steel wire mesh...