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AR Design 3" Hi-Flo Catless Downpipes

  • Sale
  • $899

AR Designs is thrilled to present their 335i/135i/1M 3" Hi-Flo catless downpipes! The only TRUE 3" downpipes currently on the market! In addition to an intoxicating and exotic sound, these downpipes add significant power and virtually eliminate turbo lag, making the fabled N54 engine even more responsive! Being 100% hand crafted in the USA out of premium 304 stainless steel you can expect perfect fitment while gaining up to 30+BHP.


  • Up to 30hp gains
  • 100% Hand Crafted in the USA
  • Premium 304 stainless steel
  • Flanges and O2 bungs included
  • 100% professionally TIG welded


  • BMW 135i 08-10
  • BMW 335i 07-10
  • BMW E82 1M 11-12