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The MTS Street E23 Gold is a height-adjustable send-in kit (coilover) from MTS Technik for the BMW E23, model years 1977 to 1981. 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 send-in kit: MTS Technik builds the kit with your own original front struts, so you don’t have to weld anything yourself.

Key benefits

• Zinc-plated damper bodies with a yellow zinc coating to protect against rust
• Lower by 35 to 95 mm, front and rear independently adjustable
• Eibach springs of 70 N/mm front and 60 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
• TÜV certificate and 2 year warranty with no mileage limit

Suitable for

The MTS Street E23 Gold fits the following versions:

• 7 Series E23 Sedan (05/1977 to 08/1981): 728, 728i, 730, 732i, 733i, 735i, 745i

Note: axle load: maximum 1040 kg front and maximum 1110 kg rear; check your car’s vehicle type plate.

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

Technical specifications

• Product: MTS Street E23 Gold
• Manufacturer: MTS Technik
• Article number: MTSGWBM91
• EAN: 5903855611405
• Version: Street, Gold (zinc-plated steel)
• Type of kit: send-in kit, made using your own original front struts
• Lowering: front 35 to 95 mm, rear 20 to 110 mm
• Springs (Eibach): GWFE93 with 70 N/mm front, GWFE101 with 60 N/mm rear
• Helper springs: GWHE02 (20 N/mm)
• Front ride height: adjustable independently via the lower damper mounts
• Damper body for: diameter 52 mm
• Camber plates: included at the front
• Included: complete front and rear set with springs and height adjustment, plus front camber plates
• TÜV certificate: yes
• Weight: 36.9 kg
• Warranty: 2 years with no mileage limit

Fitting and delivery

MTS Technik builds the MTS Street E23 Gold with your own original front struts: after receipt they are stripped of their paint, welded to size and zinc-plated.

• 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.
• Sometimes extra original parts are needed for fitting; these are not included in the set.
• On cars with level control (NIVO), the rear top mounts must be replaced with OE 33521117657 or 33521126987.
• Only fits with a rear top mount with an inner diameter of 83 mm (OE 33521117997).
• After fitting the MTS Street E23 Gold, have the wheel alignment checked, because camber and toe change as well.

How a send-in kit works

• After your order we will email you the shipping instructions and the address for your original front struts.
• Beforehand, remove all parts from the struts, such as hubs, bearings, cover caps, damper cartridges, bolts and nuts. If the struts arrive not disassembled, or if damage is found (for example broken bolts), they will be sent back or extra costs will be charged.
• Send in the struts in their original paint, even if it looks bad. Do not spray or paint them beforehand; they are stripped, welded and then zinc-plated.
• Because the kit is made to measure with your struts, the right of withdrawal for distance purchases does not apply: a send-in kit cannot be returned.
• This kit is only delivered within the European Union.

The delivery time depends on when your struts arrive. After your order we will keep you updated by email about the dispatch and the expected delivery time.

The MTS Street E23 Gold combines zinc-plated damper bodies, Eibach springs of 70 and 60 N/mm and up to 95 mm of lowering for the BMW E23.

Why choose the MTS Street E23 Gold?

With the MTS Street E23 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. And because it is a send-in kit, you don’t have to weld anything yourself.

Frequently asked questions

What is the difference between Street and Stance?

All versions use the same dampers; the difference lies in the Eibach springs and the lowering range: Street (70 and 60 N/mm) and Stance (80 and 70 N/mm). Street is the standard. Stance is the firmest and the lowest.

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.

Can I return a send-in kit?

No. Because the kit is made to measure with your own struts, the right of withdrawal for distance purchases does not apply.

How long does delivery take?

The delivery time of the MTS Street E23 Gold depends on when your struts arrive. After your order we will keep you updated by email about the dispatch and the expected delivery time.

Other MTS Technik sets for the E23

• BMW E23 (81-88) MTS Technik coilover kit (front camber plates, weld-in insert kit)
• BMW E23 (81-88) MTS Technik coilover kit (front camber plates, send-in kit)
• BMW E23 (77-81) MTS Technik coilover kit (front camber plates, weld-in insert kit)