Injen 12-16 BMW 328i/ix F30/F31/F34 / 14-16 BMW 428i/ix F36 / 14-16 228i/ix F22 Evolution Intake

The Injen Evolution Cold Air Intake System (Part No. EVO1103) is one of the better-engineered intake systems available for BMW’s N20/N26-powered F-Series models, including:

• BMW 328i F30
• BMW 328i Touring F31
• BMW 328i GT F34
• BMW 428i F36
• BMW 228i F22

Key Technical Features

• Fully enclosed (“sealed”) intake design rather than an exposed cone filter.
• Large dry-flow SuperNano-Web filter.
• Rotomolded polyethylene housing and intake tube to reduce heat soak.
• Direct bolt-on installation with no ECU tune required.
• Retains OEM-like fit and engine bay appearance.  

Claimed Performance

Injen advertises:

• Up to +15 hp
• Up to +17 lb-ft (23 Nm) torque on dyno testing.  

Independent BMW tuners generally report:

• Faster turbo spool
• Sharper throttle response
• Noticeably louder induction and turbo sounds
• Actual power gains are usually modest unless combined with tuning.  

Real-World Community Feedback

Among N20 BMW owners:

• Most praise the intake sound and turbo noises.
• Reliability appears good with relatively few CEL (check-engine light) complaints compared with some open-cone intakes.
• Many owners report the sound improvement is more noticeable than the horsepower increase.  

The Verdict

For a stock or Stage 1 N20 BMW:

Category	Rating
Power Gain	7/10
Turbo Sound	10/10
Throttle Response	8/10
Reliability	9/10
Installation Ease	9/10
Value for Money	8/10

Injen 12-16 BMW 328i/ix F30/F31/F34 / 14-16 BMW 428i/ix F36 / 14-16 228i/ix F22 Evolution Intake