aFe Power Cat-Back Exhaust System for 2011-2012 BMW 335i [E90]

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$110.00 (Fixed Shipping Cost)

aFe Stainless Steel Cat Back Exhaust System (2011-2012 E90)

Get rid of your stock restrictive 335i exhaust system and replace it with the all New aFe Stainless Steel Cat Back Exhaust System.  The aFe Cat back Exhaust System features smooth curves, and an increase in tubing size to help remove restrictions, and keep exhaust gasses flowing smoothly.  The aFe Cat Back Exhaust System will give a one of a kind deep rumble that will tell people you mean business.  This system gives you the perfect amount of back pressure creating the optimal environment for the turbos to perform at their maximum power out put. This is shown and dyno proven to give you incredible increases in horsepower and torque.

With the option of 304 stainless steel construction, there will be no problem with rust and is guaranteed to have a long lasting finish.  The aFe Cat Back Exhaust System has race heritage, with its astounding light weight, and 2.5"" mandrel-bent high polished tubing that utilizes a unique crossover pipe that helps to equalize exhaust pressure and tunes the exhaust pulse. Which gives your 335i the ability to pull you back into your seat. This Cat Back System also comes with dual 3.5"" polished 304 stainless steel tips and muffler to build a mellow, yet powerful sound. With its OE style flanges and hangers there is no need to modify, it is a straight bolt in product.


  • Dyno proven performance gains                                                               
  • May increase fuel economy
  • Deep, aggressive exhaust tone
  • Enhances your 3-Series' appearance
  • High quality stainless steel construction
  • Up to 11 horsepower gain
  • Up to 13 Ft./Lbs. torque gain
  • Much lighter than stock


  • 2011-2012 335i E90 (Coupe/Sedan)

aFe N55 Cat Back Exhaust System E90


Bayonet Hangers: Swaged bayonet ends lock your exhaust components into place for the most secure installation possible. Other manufacturers use less expensive bent hangers that allow tubes and parts to slide from side to side, causing premature wear and damage.

Welded-on hangers: Every hanger is welded on each side to ensure a stronger connection, compared to the other manufacturers who use only inferior floating hangers.

Band Style Clamps: Premium quality band clamps are used on critical joints to provide the tightest, leak-free seal possible. Other systems use common less expensive U-bolt clamps.

Mandrel Bent: All aFe tubing is mandrel-bent. Mandrel bending ensures the tubing maintains its shape and size, providing smooth, unrestrictive airflow. Standard tubing can lose as much as 20% of its diameter in sharp bends.

Part Number: 49-36306

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