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ARM Motorsports 6" Downpipe | F22 · F23 · G42 · F30 · F34 · G20 · F32 · F33 · F36 · G30 · G32 · G11 · G01 · G02 · G05 · G06 · G07 · MK5 Supra | 3.0L Turbo I6 [B58]The ARM 6" B58 Downpipe takes the title of being the largest catless downpipe available for the B58 platform! The sound coming from your B58 with the 6" section of the ARM B58 Downpipe will astonish you. Even deeper tones, even better sound, and improved turbo spool. The ARM 6" B58 Downpipe is one of the foundational upgrades for giving your B58 powered BMW more power, torque, and sound. The stock B58 downpipe comes from the factory with a catalyst

The outlet of the muffler pipe has a cross sectional area 66% larger than stock

We recommend combining with our Engine / Trans Cooling Ducts for increased functionality

tuned intake manifolds

We blank of the original PCV port as not required and fit our TTE smooth flow-optimized billet blanking plate cover

Select comfort to drive around your suburb like a civilized neighbor -or select dynamic to blow their ears out with that 5-cylinder roar

Lower CNC cut and formed lower hanger bracket

It's all in the details

These main caps are specially designed to work with a crankshaft girdle plate

ARM Motorsports 4

The IE manual timing belt tensioner is a much more reliable timing upgrade over the stock hydraulic setup

we were able to increase HPFP output by 50%

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