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Remus Axle Back Exhaust for 2010+ BMW Z4 (23i/30i/35i) [E89]


Quick Overview

Do not wait any longer, be the first to run Remus's all new cat back exhaust system on your E89 Z4!!!

Sku # : Remus_Exhaust_E89_Z4_ER3
E89 Model

Remus has just released their state of the art axle back exhaust system for the Z4 30i and 35i E89.  Remus has built and designed this exhaust system from the ground up, addressing all aspects to make sure this exhaust allows the E89 Z4 to breath as deeply as possible.  Built using 304 mandrel bent stainless steel tubing for maximum durability and exhaust flow.  This Remus axle back exhaust is designed using OEM specs, so no need to worry about fitment issues, or any modifications.  This system is direct bolt on power for your e89 Z4.  Remus has dyno proven this system to gain anywhere from 6-10 rear wheel horsepower.  With Remus's patented exhaust and muffler design, this axle back system gives off a unique DEEP throaty exhaust note.  Do not wait any longer, be the first to run Remus's all new axle back exhaust system on your E89 Z4.

  • 6-10 horsepower gain
  • Deep throaty exhaust sound
  • 304 stainless steel
  • Mandrel bend tubing
  • Newly released
  • Dyno Proven

How Remus Works...

BMW Z4 E89 sDrive 30i Tip

Z4 E89 sDrive 35i 3.0l

Reduced Backpressure
Remus Exhausts reduce engine heat and backpressure and improve exhaust scavenging from the combustion chamber. They also minimize the power robbing effects of the OEM system to restore torque and horsepower to the engine.

Why is Backpressure Bad?
Problem 1:
Backpressure is a typical feature of an exhaust system. The backpressure on the exhaust flow can help to reduce sound, but at the same time, it limits engine power. This power reduction comes from an inefficient burn in the combustion chamber where spent exhaust gasses are backed-up into the combustion chamber and contaminate the next burn cycle.
Problem 2: A second problem associated with backpressure is heat build-up. This occurs in the OEM style chamber muffler. Hot exhaust gasses are forced through louvers and into dead-end chambers. The heat builds up in the muffler and then backs itself up through the entire exhaust system to the exhaust manifold and engine. This heat retention causes damage to the muffler as well as the catalytic converter, the system tubing, the manifold and gaskets. Even ignition wires can burn up due to an overheated, inefficient exhaust system.

How do Remus Exhausts Solve the Problems of Backpressure?
Eisenmann reduces the backpressure while maintaining a
rich powerful performance tone. Annoying exhaust frequencies are dampened with a dense wall of acoustical absorbing material. The straight-through design prevents excessive heat retention allowing the entire system to run cooler and last longer.

REMUS left/right sport exhaust system BMW Z4 E89 sDrive 35i 3.0l

REMUS left/right sport exhaust system BMW Z4 E89 sDrive 35i 3.0l

REMUS Sport Exhaust for BMW Z4 E89 sDrive 30i

  • Straight through free flow design
  • Made from 304 stainless steel inside and out
  • 441 Stainless steel chrome plated tips
  • Vast selection of tips
  • 3 year/unlimited mile warranty
  • Installed using factory mounting points
  • Black ceramic coating for better look and to prevent surface damages
  • Machine TIG welded and mandrel bent
  • CNC machined
  • Laser engraved REMUS logo


  • BMW E89 Z4 23i/30i/35i

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