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Polyurethane filter which won't deform from heat
After the M4 roof shape was analyzed and digitally measured
An example is the ideal tubing layout and the perfect thermal isolation from the excessive temperatures in the critical positions of the mechanical parts
Performance can be further increased with the addition of the optional downpipes
BMW CAR Magazine (Dec'08) tested our demo 335i with the ECU Upgrade at Bruntingthorpe proving grounds in October 2008
Supersprint Front Pipes - BMW 1 Series E82 1M Bilstein Polyurethane filter which won't deformFront pipes Kit (Replace catalytic convertors) Right + Left Alternative to 985902 To be installed as a kit with 985903 or 985913 and 985906 or Rear exhaust "Racing"
US$ 15.99
US$ 23.00
US$ 59.00