Whats included in Street/Track Coil Over Kit?

• 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. This strut is prepared for coil over use, and eliminates machining of critical suspension components .

Click on the following 2 links to learn why threads are not cut in our strut housings:

http://www.mate.calpoly.edu/mate450/MechanicalAspects2.htm
http://venus.13x.com/roadracingworld/issues/dec00/keeper.htm

• 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 are preadjusted to match rear spring rates using Ground Control's shock dyno. The street/track 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 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 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 e46 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 front 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 tha 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*

 

Fitment for E46 M3

 

 

 

 

 

PLEASE NOTE: Due to the fact that these kits are built to YOUR specs, please allow up to 4 weeks for delivery for custom spring rates. You will be contacted with further follow up info. This is standard with all suspensions that request custom spring rates as they are shipped directly from the maufacturer.

**Information above is property of Ground Control Inc. and all copyright laws apply to the content**

 

 

 

 

 

 

The Eibach Pro-Kit is the perfect answer for most frequently-driven street cars. It’s our legendary spring system that dramatically improves both a vehicle’s performance and appearance.

Pro-Kit lowers your car’s center of gravity, reducing squat during acceleration, body roll in corners and excessive nose-dive under braking. When combined with Plus-1 or Plus-2 wheels and tires, the Eibach Pro-Kit is the finishing touch to a winning recipe for performance. Pro-Kit also reduces excessive
fender-well clearance, making your car look just as hot as it performs.

Every Eibach Pro-Kit is designed and tested by our suspension engineers and performance driving professionals, to deliver aggressive good looks and high performance handling, without ever compromising safety or ride quality. By using our proprietary, progressive spring design, Pro-Kit provides the ultimate balance to take your passion for driving
to a whole new level.

Fits all E46 323/325/328/330 except for Xi's.

Whats included in Street/Track Coil Over Kit?

• 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. This strut is prepared for coil over use, and eliminates machining of critical suspension components .

Click on the following 2 links to learn why threads are not cut in our strut housings:

http://www.mate.calpoly.edu/mate450/MechanicalAspects2.htm
http://venus.13x.com/roadracingworld/issues/dec00/keeper.htm

• 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 are preadjusted to match rear spring rates using Ground Control's shock dyno. The street/track 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 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 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 e46 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 front 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 tha 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*

DOES NOT FIT M3

PLEASE NOTE: Due to the fact that these kits are built to YOUR specs, please allow up to 4 weeks for delivery for custom spring rates. You will be contacted with further follow up info. This is standard with all suspensions that request custom spring rates as they are shipped directly from the maufacturer.

**Information above is property of Ground Control Inc. and all copyright laws apply to the content**

The Eibach Pro-Kit is the perfect answer for most frequently-driven street cars. It’s our legendary spring system that dramatically improves both a vehicle’s performance and appearance.

They offer approximately a 0.6 inch drop in the front and 0.9 inch drop in the rear of your BMW M3 for a more aggressive appearance.

Pro-Kit lowers your car’s center of gravity, reducing squat during acceleration, body roll in corners and excessive nose-dive under braking. When combined with larger wheels and tires, the Eibach Pro-Kit is the finishing touch to a winning recipe for performance. Pro-Kit also reduces excessive fender-well clearance, making your car look just as hot as it performs.

Designed to fit your 2001-2005 E46 M3, coupe or cab.

Complete your suspension upgrade with an Eibach Anti-Roll-Kit! While our Pro-Kit and Sportline spring sets are regarded as the primary suspension enhancement components, the Eibach Anti-Roll-Kit allows critical fine-tuning of your car’s handling characteristics. Eibach E46 M3 Anti Roll Sway Bars include a 30mm front and 25mm rear tubular steel sway bars.
Manufactured from cold-formed, high-strength aircraft-grade steel for precision performance, and finished with a long-lasting red powder coat finish, the Anti-Roll-Kit comes complete with all necessary mounting hardware and instructions for easy installation.
Designed to fit your 2001-2005 E46 M3, coupe or cab.

SPORT The most popular spring in H&R’s line-up, Sport Springs will lower your vehicle 1.4 inches in the front and 1.3 in the rear for a lower center of gravity, improved handling and a more aggressive appearance. Sport springs feature a spring rate that is firmer than that of the OE Sport spring, but is still comfortable enough for daily use. Sport springs are an excellent choice for street and occasional track use.  

SPORT The most popular spring in H&R’s line-up, Sport Springs will lower your vehicle 1.3 inches in the front and 1.25 in the rear for a lower center of gravity, improved handling and a more aggressive appearance. Sport springs feature a spring rate that is firmer than that of the OE Sport spring, but is still comfortable enough for daily use. Sport springs are an excellent choice for street and occasional track use.