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GROUND CONTROL E46 M3 RACE/TRACK COMPLETE COILOVER KIT,

GC REF 2031.77

THESE KITS ARE CUSTOM BUILT TO ORDER, PLEASE LET US KNOW THE EXACT MODEL AND USAGE OF YOUR VEHICLE, INCLUDING ANY TRACK USE ETC.

THIS KIT INCLUDES THE FOLLOWING:

-2 SHORT single adjustable, custom valved Konis in Ground Control short strut housings

Complete Shortened Front Strut Housing - Machined from seamless DOM 1026 steel alloy tubing. Heavy-duty sway bar bracket welded on. Our design is much stronger and more rigid than any of the aftermarket housings that are actually modified stock housings, with skip-welded gussets and and all original brake line and abs tabs retained.

Koni Single Adjustable Front Strut - Struts are externally adjustable from underneath the hood, even with the factory strut brace. This strut is prepared for coil over use, and eliminates machining of critical suspension components.

Ground Control Threaded Sleeves - This system is designed to eliminate stress risers caused by machining notches into the strut housing. Unlike other companies that claim superiority by cutting threads into a critical component of the suspension, Ground Control uses engineering common sense to maximize the strength of the suspension.

Ground Control Adjustable Spring Perch - A unique design, which uses an Allen head bolt to clamp the single threaded perch into the correct position. No secondary pieces are needed to "jam" the threaded perch into position.

-2 SHORT Koni single adjustable rear shocks

Koni Single Adjustable Rear Shocks - Preadjusted to match rear spring rates using our shock dyno. Your choice of two adjustable versions. The standard version, which needs tools and a jack to adjust, and the "top-adjust" version, which adjusts from inside the trunk with no tools needed. The "top-adjust" option adds $100 to the kit price.

-1 PAIR front Camber Plates

Ground Control Racing Camber/Caster Plates - More camber adjustment than stock, caster adjustment, aircraft bearings, engraved with calibrated degrees, with stainless steel reinforcement. Every component is anodized or plated, including fasteners. Adds extra travel to avoid excessive bottoming out, this is a very well engineered product. The stainless steel reinforcement prevents electrolysis between the steel fender and the aluminum camber plate.
Camber and caster are separately adjustable by sliding the mounts, without removing any components from the car. The priority of this design is to allow fast, repeatable alignment changes at the track.
The Ground Control camber plates feature two sets of bearings, a proprietary bearing, made to our specs by Aurora in the USA, which allows for articulation of the shock shaft. This spherical bearing is very under stressed, as the Ground Control design does NOT support the weight of the car on the spherical bearing. Instead, the weight of the car is supported by a completely separate articulating needle bearing, which is also manufactured for Ground Control in the USA

-4 EIBACH ERS springs, any racing spring rate

Eibach Springs - Any spring rate is available. Eibach springs are made on German machines both in the USA and in Germany, however all Eibach springs have a lifetime guarantee against sagging, rate change, or any manufacturing or material failure. Lifetime guarantee. Compare!

-4 Ground Control bump stops (made in Germany)

Ground Control Bump Stops - We do not just ask you to reuse your stock bump. The stock bump stop is designed for stock suspension we provide a bump stop designed to work with our suspension. These are soft foam, same quality as OE BMW parts, but made to our specs in Germany. Our race bump stops are even different than our street bump stops.

-2 REAR Ride Height Adjusters

Ground Control Rear Ride Height Adjustment Kit - Billet aluminum threaded adjusters bolt on top of the rear control arm. The e36 M3 has a larger diameter rear axle than the standard e36, so it is necessary for clearance to not have any portion of the adjuster below the control arm.

-1 Pair rear upper shock mounts (urethane)

Ground Control Rear Shock Mount - Billet aluminum, urethane bushings, pre-assembled. Includes gaskets and reinforcements.

Suspension is shipped completely assembled and preadjusted.
**PLEASE specify exact vehicle model and if you require any particular spring rates front and rear .

Estimated Volumetric Shipping Weight : 25.00 Kg

 

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GROUND CONTROL E46 NON - M COILOVER KIT, STREET / TOURING

GC REF : 2067.75

THESE KITS ARE CUSTOM BUILT TO ORDER, PLEASE LET US KNOW THE EXACT MODEL AND USAGE OF YOUR VEHICLE, INCLUDING ANY TRACK USE ETC.

Does not fit M3.


THIS KIT INCLUDES THE FOLLOWING:

-2 KONI single adjustable struts

Complete Front Strut Housing - Machined from seamless DOM 1026 steel alloy tubing. High clearance sway bar bracket welded on.

Koni Single Adjustable Front Strut - Struts are externally adjustable from underneath the hood, even with the factory strut brace. This strut is prepared for coil over use, and eliminates machining of critical suspension components.

Ground Control Threaded Sleeves - This system is designed to eliminate stress risers caused by machining notches into the strut housing. Unlike other companies that claim superiority by cutting threads into a critical component of the suspension, Ground Control uses engineering common sense to maximize the strength of the suspension.

Ground Control Adjustable Spring Perch - A unique design, that uses an allen head bolt to clamp the single threaded perch into the correct position. No secondary pieces are needed to "jam" the threaded perch into position. This method of clamping onto the threads also prevents sand, grit, and water from getting into the threads, which is a common problem with jam nuts.

-2 SHORT Koni single adjustable rear shocks

Koni Single Adjustable Rear Shocks - Preadjusted to match rear spring rates using our shock dyno. The street/touring is now exclusively the ";top-adjust"; version, which adjusts from inside the trunk with no tools needed. The rear shocks are custom built and valved by Koni to GC specifications, and are shorter than standard Konis.

-4 GROUND CONTROL springs, manufactured by Eibach, your choice of 4 rates

Eibach Springs - All popular street spring rates are available. Ground Control springs are made by Eibach on German machines both in the USA and in Germany, however all Eibach springs have a lifetime guarantee against sagging, rate change, or any manufacturing or material failure. Lifetime guarantee. Compare!

-4 GROUND CONTROL bump stops (made in Germany)

Ground Control Bump Stops - We do not just ask you to reuse your stock bump. The stock bump stop is designed for stock suspension; we provide a bump stop designed to work with our suspension. These are soft foam, same quality as OEM BMW parts, but made to our specs in Germany. Our race bump stops are even different than our street bump stops.

-2 REAR Ride Height Adjusters

Ground Control Rear Ride Height Adjustment Kit - Billet aluminum threaded adjusters bolt on top of the rear control arm. The E46 M has a larger diameter rear axle than the standard Z4, so it is necessary for clearance to not have any portion of the adjuster below the control arm.

-1 PAIR front Street/Touring Camber Plates

Ground Control Racing Camber/Caster Plates - More camber adjustment than stock, caster adjustment, aircraft bearing, engraved with calibrated degrees, with stainless steel reinforcement. Every component is anodized or plated, including fasteners. Adds extra travel to avoid excessive bottoming out, this is a very well engineered product. The stainless steel reinforcement prevents electrolysis between the steel fender and the aluminum camber plate.
Camber is quickly adjustable by sliding the mounts, without removing any components from the car. The priority of this design is to allow fast, repeatable alignment changes at the track. Caster is adjustable, when necessary to correct the car, by changing a shim under the plate.
The Ground Control camber plates feature a urethane bushing that carries the side loads only, and does not rotate (no squeek!) and allows for articulation of the shock shaft. This urethane bushing is very under stressed, as the Ground Control design does NOT support the weight of the car on the urethane bushing. Instead, the weight of the car is supported by a completely separate rotating ball bearing, which is also manufactured in Germany. The entire assembly is machined at an angle, just like the stock upper mount. Beware of less expensive machining that bends the strut shaft after installation.

-1 PAIR rear upper shock mounts

Ground Control Rear Shock Mount - Billet aluminum, urethane bushings, pre-assembled. Includes gaskets and reinforcements.


* Suspension is shipped completely assembled and preadjusted. When ordering please specify the below info and we will build the kit accordingly:

- Exact vehicle model
- Required ride quality (normal street/sporty/firm sporty/aggressive)
- What the car is generally used for (weekend only, family, occasional track day etc

Estimated Volumetric Shipping Weight : 25.00 Kg

 

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GROUND CONTROL E46 NON - M TRACK / SCHOOL FULL COILOVER KIT

KIT REF: 2031.76

THESE KITS ARE CUSTOM BUILT TO ORDER, PLEASE LET US KNOW THE EXACT MODEL AND USAGE OF YOUR VEHICLE, INCLUDING ANY TRACK USE ETC.

THIS KIT INCLUDES THE FOLLOWING:

-2 SHORT Koni single adjustable struts in MZ4 specific Ground Control shortened strut housings

Notes: This kit is specifically designed for the E85/E86 MZ4. These front struts are completely different from the E36, although they are similar in appearance. Additionally, although the rear is similar to an E46 sedan, the dimensions of the hardware are different. Because Ground Control suspension manufactures our own suspension kits, we are able to make a true suspension kit for the MZ4 rather than adapting E36 and E46 kits.

Complete Shortened Front Strut Housing - Machined from seamless DOM 1026 steel alloy tubing. Heavy-duty swaybar bracket welded on. Our design is much stronger and more rigid than any of the aftermarket housings that are actually modified stock housings, with skip-welded gussets and and all original brake line and abs tabs retained.

Koni Single Adjustable Front Strut - Struts are externally adjustable from underneath the hood, even with the factory strut brace. This strut is prepared for coil over use, and eliminates machining of critical suspension components. This is a custom valved strut inserts made for ground Control by Koni in Holland, and has a lifetime warranty.

Ground Control Threaded Sleeves - This system is designed to eliminate stress risers caused by machining notches into the strut housing. Unlike other companies that claim superiority by cutting threads into a critical component of the suspension, Ground Control uses engineering common sense to maximize the strength of the suspension.

Ground Control Adjustable Spring Perch - A unique design, which uses an Allen head bolt to clamp the single threaded perch into the correct position. No secondary pieces are needed to "jam" the threaded perch into position.

-2 SHORT Koni single adjustable rear shocks

Koni Single Adjustable Rear Shocks - Made in Holland and custom valved to GC specs. Shorter than standard length, with reduced droop length. Preadjusted to match rear spring rates using our shock dyno. Adjusts from inside the trunk with no tools needed. (standard Koni must be removed to adjust).

-1 Pair front Camber Plates

Ground Control Racing Camber/Caster Plates - More camber adjustment than stock, caster adjustment, aircraft bearings, engraved with calibrated degrees, with stainless steel reinforcement. Every component is anodized or plated, including fasteners. Adds extra travel to avoid excessive bottoming out, this is a very well engineered product. The stainless steel reinforcement prevents electrolysis between the steel fender and the aluminum camber plate.
Camber and caster are separately adjustable by sliding the mounts, without removing any components from the car. The priority of this design is to allow fast, repeatable alignment changes at the track.
The Ground Control camber plates feature two sets of bearings, a proprietary bearing, made to our specs by Aurora in the USA, which allows for articulation of the shock shaft. This spherical bearing is very understressed, as the Ground Control design does NOT support the weight of the car on the spherical bearing. Instead, the weight of the car is supported by a completely separate articulating needle bearing, which is also manufactured for Ground Control in the USA.

-4 Eibach ERS springs, any spring rate

Eibach Springs - Any spring rate is available. Eibach springs are made on German machines both in the USA and in Germany, however all Eibach springs have a lifetime guarantee against sagging, rate change, or any manufacturing or material failure. Lifetime guarantee. Compare!

-4 Ground Control bump stops (made in Germany)

Ground Control Bump Stop - We do not just ask you to reuse your stock bump. The stock bump stop is designed for stock suspension; we provide a bump stop designed to work with our suspension. These are soft foam, same quality as OEM BMW parts, but made to our specs in Germany. Our race bump stops are even different than our street bump stops.

-2 Rear Ride Height Adjusters

Ground Control Rear Ride Height Adjustment Kit - Billet aluminum threaded adjusters bolt on top of the rear control arm. The E46 M has a larger diameter rear axle than the standard Z4, so it is necessary for clearance to not have any portion of the adjuster below the control arm.

-1 Pair rear upper shock mounts (urethane)

Ground Control Rear Shock Mount - Billet aluminum, urethane bushings, pre-assembled. Includes gaskets and reinforcements. This mount, once installed allows all maintanence to be done without ever removing the carpet or interior due to the extenal bolts, a GC original design.

* Suspension is supplied completely assembled and preadjusted *

NOTE: These kits are intentionally equipped with a rigid camber/caster plate design for on-track applications. Because of this feature, some noise may be transmitted from strut shafts, sway bar links, tires, brakes, springs, wheel bearings, road surfaces, etc.


Estimated Volumetric Shipping Weight : 24.00 Kg

 

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Ref: 2031

This kit fits E46 (98-06) years with stock, Sachs, Boge only struts (please specify shock type before ordering)

- removal of stock spring seat required front
- Expected ride height change from 0 to 1.75 inches
- Ground Control Spring Kits

This spring kit gives you the option to customize the ride height of your vehicle. After several years of use in racing applications, Ground Control spring kits have been adapted for street use. Most other spring kits offer only one set ride height when installed. The Ground Control system's unique design allows for easy adjustment. Simply lift the corner(s) of the vehicle that you wish to adjust and spin the adjustable spring seat up or down to raise or lower the vehicle*. Ground Control spring kits are also designed to be used with either stock or aftermarket shocks.

*Some applications require the use of a provided wrench.

Springs: We are pleased to announce that Eibach has chosen Ground Control as the west coast distributor for their ERS (Eibach Race Spring) line of springs. All of our ride height adjustable kits now exclusively feature Eibach springs. All racing and street/show spring rates are available. All Eibach springs offer a lifetime warranty against spring rate change and sagging.

Adjusters: All adjusters consist of a threaded sleeve and adjustable spring seat. And are made using high strength 6061-T6 aluminium; anodised for greater durability and appearance. The threads on the adjusters are square cut which locks the adjustable spring seat in place under load. For further precaution, a setscrew in the adjustable spring seat can be used to secure adjustment. Upper spring perches are used to insulate the spring.

Estimated Volumetric Shipping Weight : 15.00 Kg

 

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GC part number 2031.78

GROUND CONTROL E46 XI TOURING FULL COILOVER KIT.

THIS KIT INCLUDES THE FOLLOWING:
- 2 Koni single adjustable struts
- 2 Koni single adjustable rear shocks
- 4 Ground Control springs, manufactured by Eibach, your choice of 4 rates
- 4 Ground Control bump stops (made in Germany)
- 2 Rear Ride Height Adjusters
- 1 Pair Front Street/Touring Camber Plates
- 1 Pair rear upper shock mounts

THIS KIT DOES NOT FIT THE M3 or NON XI VEHICLES

Suspension is shipped completely assembled and preadjusted



Estimated Volumetric Shipping Weight : 25.00 Kg