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The MTS Street Z4 E89 Inox is a height-adjustable coilover kit from MTS Technik for the BMW Z4 E89 Roadster, model years 2009 to 2016. Street is the standard setup from MTS Technik: a good balance between comfort and firmness, for daily use and the occasional track day or drift day.

On the Inox version, the damper bodies are made of stainless steel, so road salt and moisture don’t stand a chance.

Key benefits

• Stainless steel damper bodies, resistant to road salt and moisture
• Lower by 15 to 50 mm, front and rear independently adjustable
• Eibach springs of 24 to 47.5 N/mm front and 45 to 110 N/mm rear
• Gas-oil twin-tube dampers that stay stable even under intensive use
• hexaCOIL spring perch: the adjusting nut does not seize up during adjustment
• 2 year warranty with no mileage limit

Suitable for

The MTS Street Z4 E89 Inox fits the following versions:

• Z4 Roadster (E89) (02/2009 to 08/2016): sDrive18i, sDrive20i, sDrive23i, sDrive28i, sDrive30i, sDrive35i, sDrive35is

Note: axle load: maximum 870 kg front and maximum 1000 kg rear; check your car’s vehicle type plate.

Also suitable for versions with M-Technik (M package).

Technical specifications

• Product: MTS Street Z4 E89 Inox
• Manufacturer: MTS Technik
• Article number: XMTSGWBM60
• EAN: 5903855650732
• Version: Street, Inox (stainless steel)
• Lowering: front 15 to 50 mm, rear 10 to 40 mm
• Springs (Eibach): GWFE05VA with 24 to 47.5 N/mm front, GWFE03HA with 45 to 110 N/mm rear
• Height adjustment: front via threaded damper body, rear via separate adjuster element
• Camber plates: not included
• Included: complete front and rear set with springs and height adjustment
• TÜV certificate: no
• Weight: 24.9 kg
• Warranty: 2 years with no mileage limit

Fitting and delivery

The MTS Street Z4 E89 Inox replaces the original dampers and springs and fits on the original mounting points.

• The stated lowering applies relative to the standard suspension. If the car has a factory sport suspension, the lowering will be smaller.
• When fitting, check the clearance between tyre or wheel and the strut: at least 5 mm. If it is less, use approved wheel spacers.
• Tip for adjusting the rear: remove the height adjuster, set the spring seat to the new position and refit the adjuster.
• After lowering, have the wheel alignment checked, because camber and toe change as well.

Delivery: 4 to 7 working days while manufacturer stock lasts.

The MTS Street Z4 E89 Inox combines stainless steel damper bodies, Eibach springs of 24-47.5 and 45-110 N/mm and up to 50 mm of lowering for the BMW Z4 E89 Roadster.

Why choose the MTS Street Z4 E89 Inox?

With the MTS Street Z4 E89 Inox you choose the setup MTS Technik itself recommends as standard: enough lowering for a tight stance, and a character that doesn’t become tiring on the road. If you also drive in winter or the car is parked outside, the Inox version pays for itself: stainless steel doesn’t rust, so the thread of the height adjustment doesn’t seize up. If you mainly drive in summer, the Gold version is a more affordable alternative.

Frequently asked questions

What is the difference between Gold and Inox?

Gold has steel damper bodies with a yellow zinc coating, Inox has stainless steel damper bodies. Inox is more resistant to road salt and moisture and therefore costs more. Otherwise, the kits are identical.

How long does delivery take?

The MTS Street Z4 E89 Inox is delivered within 4 to 7 working days as long as the manufacturer has stock.