AR Design Catless Downpipes for BMW M3/M4, S55 Engine

  • AR Design Catless Downpipe for BMW M3/M4, S55 Engine (AR-01-09000)
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$1,159.00 $1,077.87
(You save $81.13)
18.00 LBS
Calculated at checkout

BMW Performance Parts: AR Design Catless Downpipes for BMW M3/M4, S55 Engine (AR-01-09000)

Product Features & Benefits

These TRUE 3" downpipes will add significant power and virtually eliminate turbo lag, making the S55 engine even more responsive!

Hi-Flow 3" Downpipes Feature:

Typical gains WITHOUT tuning in the 25-30whp range!
100% hand crafted in the USA from premium 304 Stainless Steel - flanges and O2 bungs included!
CNC'd 304 Stainless cat-back flanges, and CNC'd 304 Stainless V-Band flanges.
100% TIG welded, argon back-purged.
Grade 10.9 Metric Hardware (145,000PSI tensile strength, C32-C39 Rockwell, Zinc Plated), and Nord-Lock positive locking re-usable washers included.
Factory location O2 bungs
Available with a 2000°F ceramic coating. Coatings come with a 3 year warranty against corrosion and rust to original owner.
Lifetime warranty against any manufacturing defects given to original owner. 

Additional Details


  • F82/84 BMW M4 S55 Engine
  • F80 BMW M3 S55 Engine



   We make no claims as to emission performance for street or highway use.  Some equipment is not sold for street use in any state or country where state or federal regulations prohibit its use.  Some items listed in the online catalog are intended for off road use and for purpose built race cars only.  EUROTEK TUNING, LLC does not make any claims of street legal use of these products that are not intended for use on public roads.  We do not ship any emissions related equipment to the state of California.  We require an off-road/track use only waiver completed, signed, faxed, emailed or returned to our facility before emission related equipment is shipped to customer supplied address.  We are not affiliated with Volkswagen Audi Group, Porsche AG or any of their subsidiaries.  EUROTEK TUNING, LLC is not responsible for errors on our website.

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