PLM & JB4 BMW 135i / 335i / 335xi ( N55 ) CATLESS DOWNPIPES 2011 - 2012

Availability: In stock

Retail Price:   $995.00
Sale Price:   $695.00

Product Code: PLM-N55-DP-JB4-N55-A

Available Options


How about 100hp+ horsepower gain at the wheels??!!!

PLM Private Label Mfg. has partnered up with Burger Motorsports (BMS) to offer the best tuning software JB4 for BMW with our Downpipes!

PLM Private Label Mfg. downpipes are designed to improve your turbo charged vehicles performance.  Made from stainless steel, this PLM downpipe directly connects to the turbo with a 4" diameter opening and v band flange, with inner inside diameter of 2.60" or so.

The larger diameter design will improve exhaust flow, keep boost pressure up and provide improved throttle response.  This down pipe eliminates the catalytic converters.  Each downpipe has 2 oxygen sensor locations.  Thick flanges, sturdy hangers and increased flow make these down pipes a must have for all BMW enthusiasts.

  1. Burger Motorsports BMS JB4 (N55 JB4) ** PLEASE SELECT HARNESS A OR B **
  2. PLM N55 Downpipe

PLM Downpipe Key Features:
  • Brand New In Box
  • 100% TIG welded
  • Exhaust gaskets included.
  • Factory location O2 bungs
  • 4" catless downpipe currently on the market!
  • Built with a carefully made 4" to dual 2.5" collector that mates to the factory style exhaust.
  • Typical gains with tuning in the 20+hp range!
  • 100% hand crafted from Stainless Steel - flanges and O2 bungs included! 
  • CNC machined stainless v-band flange.
  • Added bung for a wideband O2 sensor!
  • One year limited warranty
  • One piece design Mandrel Bent
  • 100% Guaranteed Perfect Fitment
  • Competition Vehicles Only / Off Road Use Only / Not CARB legal.

JB4 Features and Benefits: 
  • Power gains of up to 100hp and 100tq to the wheels on a stock vehicle
  • Quick Plug & Play Installation
  • CANbus integration offering unrivaled tuning features and performance
  • Runs as smoothly as stock, this is how your N54 should have come from the factory
  • Compatible with all driving modes
  • Fuel economy unchanged during normal driving
  • Compatible with JB4 Mobile for smartphone logging, tuning changes, and adjustment
  • Ethanol (E85) compatible tuning maps
  • Able to read/delete fault codes
  • Not VIN locked, can be removed without a trace and resold down the road
  • Made in the USA
  • 5 year warranty on the JB4 tuner
  • Competition Vehicles Only / Off Road Use Only / Not CARB legal.

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