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N20 Downpipe - F30 320/328iHIGHLIGHTS Gain up to 17whp 25wtq Faster Turbo Spool Improved Exhaust Note Upgrade to Stage 2+ Tuning SS304 Stainless Steel PROFILE The ARM Motorsports N20 Downpipe is the best hardware upgrade to get the most power from your 320i or 328i. The N20 has a stock downpipe with a catalyst that drastically restricts exhaust flow. This limits not only the amount of power N20 can make on the stock tune, but also prevents upgrading to a stage 2 tune due to

you can barely even see the kit once the car is assembled

This unique plug and play kit replaces your factory coolant to trans fluid heat exchanger with a high-capacity front-mounted air to trans fluid radiator

This service is available for the following chassis: E90

The upper section of the downpipe has a CNC-machined flange that mates up to the turbo and includes a flex joint to relieve stress and make installation easier

0L BMW E93 335i N55 3

9 grade heat treated extended chrome wheel lug bolts

35 to 45 minutes

The N54 WMI kit integrates to the JB4 tuning system allowing for precise mapping based on boost

The same car equipped with the ARM 5" Stepped intercooler was able to keep its power up with a very cool 106 degrees Fahrenheit

It's time to take your sound experience to the next level on your G80

What width wheel spacer should I get

Additional items: clips

Exchange/Return Notes