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Evolution Racewerks (ER)

B58 catless downpipe for BMW M240i, M140i, 340i, 440i, 540i, Z4 M40i, X3/X4 M40i, Toyota GR Supra A90

B58 catless downpipe for BMW M240i, M140i, 340i, 440i, 540i, Z4 M40i, X3/X4 M40i, Toyota GR Supra A90

Regular price £557.53 GBP
Regular price £599.50 GBP Sale price £557.53 GBP
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Evolution Racewerks ER 4.5-inch V-band catless downpipe for the B58 engine - no cats, no compromises. Direct bolt-on fit for all listed B58 applications, including the GR Supra A90.

  • True 4.5-inch V-band flange: CNC-machined to match the turbo outlet - no step-down, no flow restriction
  • Full 304 stainless steel: TIG welded, brushed finish, lifetime warranty
  • Includes O2 bungs & hardware: Works with factory and aftermarket cat-backs
  • Gains: Up to 32 whp and 16 wtq with supporting stage 1 or stage 2 tuning

Fast spool, stronger mid-range, zero guesswork. For fast road or track day use - not a daily-driver compromise.

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