This 12-15 BMW 335i cold air intake is from Injen's original RD line.
Injen has got to be the last true engineers in the intake world. Compare an Injen intake to any other 335i intake and you can immediately tell that it's not just thicker, but are also shaped different. Unlike the other big names in intakes, Injen does NOT just simply copy your stock intake tube. Injen really cares about performance, so they spend a lot of time to design the absolute best intake for your 335i.
The RD line of intakes is Injen's classic line of cold airs. They are geared towards cars like the 335i that are relatively straight forward and don't require the more complicated (and expensive) features of their other intake lines. They are best for creating mid-range power. Also, as a cold air, it sits deeper and further forward in your engine bay in order to pull the "colder" air from outside.
BMW 335i Cold Air Intake System Frequently Asked Questions
Can I install my new Cold Air Intake myself?
If you have a decent amount of technical knowledge and can follow instructions, you should be able to follow the instructions and install a cold air intake onto your BMW 335i yourself. K&N FIPK intakes by far offer the best instructions with multiple pictures, though AEM is close behind.
What kind of power can I expect to get on my BMW 335i from an AEM, Spyder, or K&N FIPK Cold Air Intake?
Power increases vary by application, but you could expect anywhere from a 3-15hp increase under optimal conditions.
Are Cold Air Intakes safe in the rain?
NO CAR should ever be operated during flooding. Unlike short ram intakes, cold air intakes draw air from a relatively low position. Your vehicle can technically ingest water from rain puddles, streams, floods, etc if your car is lowered or the water is deep enough, and damage your engine. To prevent this, you could install the appropriate sized AEM Bypass valve onto your BMW 335i's AEM or Spyder Cold Air Intake, however, we instead recommend switching to your vehicles stock intake system if you anticipate driving through flood conditions. K&N FIPK Intakes do not require bypass valves since their design is higher than AEM and Spyder, and are relatively safe from water ingestion.
