Rogue Engineering BMW Exhaust Parts, Mufflers & Catalytic Converters for BMW Z Series E85/6 (2003-2008)

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Performance exhaust options from the best BMW aftermarket producers and the most reliable replacement maintenance parts are all at Turner Motorsport. Over time, factory exhaust on the cleanest examples of BMW heritage shows their age. Our factory replacement exhausts are just what you need to keep your favorite car in showroom condition or finish off your restoration. If you are looking for a bump in sound and power, you can also find our performance options like Headers, Downpipes, and Mufflers from Corsa, DINAN, and others on this page.

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Rogue Engineering Diablo Exhaust
Rogue Engineering Diablo Exhaust
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Rogue Engineering - Corporate Logo
T#:25971886
Part#: MZ4-EX
Ships on Jul 23, 2026
$ 1,195.00 USD
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$ 1,195.00 USD
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Rogue Engineering Z4 M Diablo Exhaust

Rogue Engineering is proud to introduce their Z4 M Diablo exhaust. A cursory glance at the exhaust easily shows how this exhaust excels in both performance while saving weight. However, a closer look will show the pure artistry of its construction and elements of unique design.

Like the successful E46 M3 Diablo exhaust, the Z4 M Diablo exhaust is designed to compliment the high-revving engine concept which BMW has implemented into the M brand vehicles as of late. This means that the exhaust note will not only sound good at low RPMs, but also at the high RPM limit of the engine. Additionally, the Z4 M Diablo will improve performance at high RPMs with its straight-through muffler design.

Features:

  • Significant weight savings of 15 lbs. compared to the factory muffler
  • High-quality T-304 stainless steel construction for durability
  • Straight-through muffler design improves performance at high RPMs
  • Deep, throaty exhaust note complements the high-revving engine concept
  • Easy installation with factory-like hangers, no cutting or welding required

Installation of the Z4 M Diablo requires no cutting or welding as it requires the removal of the factory rear mufflers. Installation time is approximately 45 minutes. No new gaskets or hardware is required.

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Rogue Engineering X-Pipe - Z4 M
Rogue Engineering X-Pipe - Z4 M
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Rogue Engineering - Corporate Logo
T#:399613
Part#: RE.MZ4.XPIPE
Ships in 8 Business Days
$ 675.00 USD
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$ 675.00 USD
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The Rogue Engineering E85 MZ4 X-pipe replaces the stock BMW resonator between the catalytic converter and the rear mufflers. The RE E85 MZ4 X-pipe is made to fit in the place of the factory resonator. Other features include: Fits all MZ4 Coupe/Convertible from 2006-08 Weighs only 11.35 lbs. for the entire assembly. The factory part is over 15 lbs. 100% T-304 stainless steel construction and internals, a majority of the exhaust made from 16 gauge stainless steel. Fully mandrel bent tubing, no crimps or flattened areas Mil-finished. Full TIG welded construction, no lock seams or pinch welds. Factory-like hangers for OEM fit. Fits with factory or aftermarket mufflers (that use flanges). Optimized tubing sizes and minimized bends maintain exhaust velocity without compromising necessary backpressure Deep, throaty tone, without the drone. Will not change ground clearance Will not void factory warranty Will not affect emissions
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