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The MTS Street E31 Gold is a height-adjustable weld-in insert kit (coilover) from MTS Technik for the BMW E31, model years 1990 to 1999. Street is the standard setup from MTS Technik: a good balance between comfort and firmness.

On the Gold version, the steel parts have a yellow zinc coating and the aluminium parts are black anodised. This is a weld-in insert kit: the original front struts are shortened and welded.

Key benefits

• Zinc-plated damper bodies with a yellow zinc coating to protect against rust
• Lower by 25 to 75 mm, front and rear independently adjustable
• Eibach springs of 84 N/mm front and 80 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
• Front camber plates included, so you can adjust the camber
• 2 year warranty with no mileage limit

Suitable for

The MTS Street E31 Gold fits the following versions:

• 8 Series E31 (01/1990 to 12/1999): 840Ci, 840i, 850Ci, 850 CSi, 850i, Ci

Note for the MTS Street E31 Gold: only for cars without electronically controlled damping. Axle load: maximum 1150 kg front and maximum 1200 kg rear; check your car’s vehicle type plate.

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

Technical specifications

• Product: MTS Street E31 Gold
• Manufacturer: MTS Technik
• Article number: MTSGWBM48
• EAN: 5903855611238
• Version: Street, Gold (zinc-plated steel)
• Type of kit: weld-in insert kit, the original front struts are shortened and welded
• Lowering: front 25 to 75 mm, rear 25 to 75 mm
• Springs (Eibach): GWFE255VA with 84 N/mm front, GWFE206 with 80 N/mm rear
• Helper springs: GWHE02 (20 N/mm)
• Height adjustment: front via threaded damper body, rear via separate adjuster element
• Thread block rear: at the bottom
• Damper body for: diameter 55 mm
• Camber plates: included at the front
• Included: complete front and rear set with springs and height adjustment, plus front camber plates
• TÜV certificate: no
• Weight: 29.9 kg
• Warranty: 2 years with no mileage limit

Fitting and delivery

To fit the MTS Street E31 Gold, the original front struts are shortened and welded as described in the manual. Have this done by an experienced mechanic or welder.

• 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 E31 Gold combines zinc-plated damper bodies, Eibach springs of 84 and 80 N/mm and up to 75 mm of lowering for the BMW E31.

Why choose the MTS Street E31 Gold?

With the MTS Street E31 Gold 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. The Gold version is the most affordable way to get an MTS Technik coilover kit, with a zinc coating that protects well against rust. If you also drive in winter, take a look at the Inox version with stainless steel damper bodies. With the included camber plates you set the camber, which with a large lowering means less tyre wear and more grip.

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.

Do the struts really have to be welded?

Yes. With this weld-in insert kit, your original struts are shortened and welded as described in the manual. If you don’t want to weld yourself, check whether a send-in kit exists for your car: with that, MTS Technik does the welding.

How long does delivery take?

The MTS Street E31 Gold is delivered within 4 to 7 working days as long as the manufacturer has stock.

Other MTS Technik sets for the E31

• BMW E31 (90-99) MTS Technik coilover kit (front camber plates, send-in kit)