Power
Spark plugs
+0–5whp est. · Restores lost power
Medium$60–$1501–2 hrs
Home › BMW 3 Series E90 / E92 / E93
BMW 3 Series E90 / E92 / E93 mods
Pick your model first. The 328i, the turbo 335i and the V8 M3 share a platform but take very different parts.
Your E90/E92/E93
Pick your year to see what fits.
This page covers the US sedan, coupe and convertible. It doesn't cover the 335d diesel or the E91 wagon.
Engine 3.0L inline-6 / 4.0L V8
Stock ~215–414 hp
Weight ~3,500–3,800 lb
2006–2013
Power
Cold air intake
+5–15whp est. · More sound, small gain
Easy$100–$1,0001 hr
Reliability
Charge pipe
Stops boost leaks
Medium$130–$2501–2 hrs
Power
Downpipes
+20–40whp est. · More power + turbo sound
Expert$250–$5004–8 hrs
Power
Intercooler
+5–20whp est. · Stops heat soak
Hard$350–$6003–4 hrs
Power
JB4 tune
+50–80whp est. · Biggest bang for the buck
Medium$480–$6201 hr
Sound
Exhaust
+0–10whp est. · Better sound
Medium$300–$2,5002–3 hrs
Sound
X-pipe
+5–15whp est. · V8 sound + power
Hard$800–$1,5003–4 hrs
Handling
Coilovers
Lower, flatter corners
Hard$1,200–$1,4005–8 hrs
Handling
Lowering springs
Stance + less roll
Hard$320–$3804–6 hrs
Handling
Sway bars
Flatter cornering
Medium$280–$6002–3 hrs
Brakes
Brake pads + fluid
Firmer pedal
Medium$320–$4202–3 hrs
Reliability
Water pump + thermostat
Protects the engine
Hard$570–$6803–5 hrs
Want to add your own mod?Send a part link, we'll write the guide
HP numbers are wheel-horsepower estimates.