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Performance ideas please!!

1K views 3 replies 4 participants last post by  bimmerguy82 
#1 ·
So I just bought a full exhaust, cold air intake, and a Programmer for my 99 328I. The car is stock and I want to add performance. What else can I do to the car to gain performance? Natural asperation is the goal and not spending thousands on each part.
 
#4 ·
+1 and headers, higher differential ratio, software. Maybe a inexpensive NOX kit, 50-75 wet shot.
 
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