3.5" Exhaust Downpipe Upgrade For N55 2012-2013.7 BMW M135i 335i Stainless Steel Generic


SKU: C138-B094~001

Free & Fast Shipping

Secure & Trusted Trade

Made from hand crafted, tig welded grade stainless steel.
Smooth radius bends to decrease turbulence and increase flow.
CNC SS304 stainless steel flanges.
Gains from 20-25hp with tune.

Condition:100% Brand New
Material: Stainless Steel
Type: 3.5 Inch Downpipe

For 2012-2013.7 BMW M135i N55
For 2012-2013.7 BMW 335i N55

Package including:
As shown in the figure

Shipping Information:
Free Quick Shipping.
Estimated Time of Arrival: within 3-6 working days.

Customer Notification and Disclaimer of Liability.
This is a race-only product. It is not legal for sale or use on pollution controlled vehicles that are driven on public streets, roads, or highways. Buyer's use or installation of this product for itself or for Buyer's customer is at Buyer's own risk. The Buyer is responsible for obeying federal, state, and local laws. Only Buyer can determine end customer's use and thus assumes any and all liability hereby waiving any and all claims against JCarPart in the sale of this product to the maximum extent permissible by law. Make sure to abide by all local, state, and federal laws, including emissions, vehicle safety, and traffic laws. It is Buyer's responsibility to know what those laws are and how they apply to Buyer or Buyer's customer. This product is designed and intended solely for legally-organized and sanctioned, closed-course, off-road competition use and is not for use on public streets, roads, or highways. This Product is capable of disabling the emissions system on some vehicles. Use on public streets, roads, or highways is a violation of federal and certain state (including California) and local environmental laws.

Customer Reviews

Based on 80 reviews
David Conditt
Looks Great for the Money

I haven't installed this item yet as I had oil in my pipes and want to do a refresh with a new turbo at the same time. BUT the part looks to be very nice quality for the money.

Jason Zoboroski

all fit great but get the muffler

Dominick O’Connor
Sounds awesome

It has a very nice deep tone while on those low RPM’s and a nice controlled loud tone in the high RPMS’s. It was pretty easy to install but the only problem was that it was a little bit short on the bumper so some of the exhaust fumes gets on the muffler. It also made my gas millage better. Btw if you’re gonna be installing this on a g35 coupe like me you will need an 8 inch by 3 inch wide extension pipe.

Fernando Flores


john odell
B58 f22 bmw

Bolted in no issue only concern was that I had to take the tail end of my old downpipe to make a spacer to allow me to tighten down the clamp tight enough on to the port on the downpipe it was too small needs to be flared out more otherwise works perfectly. You do not check engine light. You will need a spacer and tune