Korman Roadsport Suspension

Our best selling suspension package is comfortable enough for daily use, yet provides substantially improved handling for winding roads and weekend club events. Kit includes: 4 progressive rate springs which lower the car .75" front, 0.5" rear; Front and rear anti-sway bars (22mm/19mm) complete with polyurethane bushings, and front and rear Bilstein Sport Shocks.

P/N 31103M3H

Korman Clubsport Suspension

For the enthusiast who is willing to accept a much firmer ride on the street and wants a distinctive competitive edge at Club events and autocrosses. This kit is similar to the Roadsport System but includes aggressive linear rate springs which lower the car 2.0" front and 1.5" rear. Also included are our heavy-duty offset lower control arm bushings (description below).

P/N 31103M3H2

This suspension package takes your M3 to the maximum allowable specifications for BMW CCA Club Racing  J-Stock class.  Kit includes special race springs, Korman valved Bilsteins, sway bars, delrin offset lower control arm bushings and diff mount, rear sway bar reinforcements, camber plates, aluminum control arms,  heavy duty subframe mounts, adjustable sway bar links, and front and rear strut braces.  Firm, yet still streetable.  Performance is comparable to full race coil-over suspensions when driven on the track.

P/N  31103M3JS

This system lets you out-handle almost everything else on the track. Neutral controlled drifts under hard throttle, faultless tracking through chicanes and slaloms, forgiving and quick to recover from excesses. Brings out the best in you and your M3. 

• Bilstein shocks re-valved to Korman specifications
• Threaded adjustable front struts (no exchange)
• Offset front upper support bearings
• Lightweight 60mm diameter front race springs
• Rear Race Springs
• Aluminum Spring Plates
• Adjustable Front and Rear Sway Bars
• Adjustable Sway Bar Links Front and Rear
• Rear Subframe Camber/Toe Assembly
• Rear Sway Bar Reinforcements

• Offset Lower Control Arm Bushings
• Hard Rubber Subframe and Differential Mounts
• Adjustable Front Camber Assembly with Solid Spherical Bearings
• Delrin Front Lower Control Arm and Differential Bushings
• Solid Subframe Mounts
• Highly Progressive Rate Racing Rear Springs
• Three Piece Tender Spring Assembly
• Aluminum Front Lower Control Arms 

P/N 31103M3H4

Components in the above suspension systems also available separately

Adjustable Camber Plate/Upper Support Bearing Assembly

These complete assemblies bolt up to your stock strut assembly with no modification required.  Adjustment of as much as 2.0° is possible for improved handling and tire wear on the track.  Polyurethane center section reduces flex (stock is rubber).  Adjusts easily from the engine compartment.  Sold in pairs.

P/N  31330030

Upper Decamber Plates

A pair of hardened aluminum plates complete with studs and bolts for easy installation. Improves front negative camber by about 1°. Legal for stock class BMW CCA Club Racing.

P/N 31062056

Eliminates a common failure area on the E30 chassis.  Kit includes billet aluminum mounting plates with replaceable bushings, special hardened washers, hardware and body gaskets. 

P/N  3352000547

Rear Subframe Camber/Toe Assembly

Our eccentrics allow adjustment of rear wheel camber and toe in just a matter of minutes. Enables the restoration of factory specified alignment settings, adjustable for racing. Sold on an exchange basis.

P/N 33203567 (camber or toe only, x 2 for both)

Strut Braces

Strengthens chassis, minimizes strut tower deflection. Polished aluminum finish.

Front-P/N 3130103, Rear-P/N 33220461

Competition Adjustable Anti-Sway Bar End Links

Allows for custom tuning of front and rear anti-sway bar preload to suit specific track layouts. Light weight aluminum threaded centers connect right and left hand threaded heim joints for quick adjustments. Front links may be used singly or in pairs, rear links must be installed in pairs.

Front Adjustable Link-P/N 3102847,  Rear Adjustable Link-P/N 3102848

Rear Anti-Sway Bar Reinforcements

The original rear sway bar to body mounting brackets are notorious for breaking. When they tear out, you're left with more work than just replacing a bracket! Our reinforcement bracket fits into the stock location but has provision for an extra through-trunk mounting bolt. The resulting vertical and horizontal rigidity completely eliminates any future breakage problems. Sold in pairs.

P/N 3133E30RACE

Aluminum Lower Control Arms

Stronger than the original steel front control arms and half the weight! 4.5 lb. reduction in unsprung weight per side.

Left P/N 31121308L, Right P/N 31121308R

Manual Steering Rack

More precise steering and a 14 lb. weight reduction when all the power steering components are removed. Parasitic load on the engine caused by the pump is also eliminated. No more steering effort required at speed, noticeably more effort required for low speed maneuvers. Kit includes new steering rack and necessary linkage parts.

P/N 32110325

Hard Rubber Bushings

Will slightly stiffen ride. Use for street, autocross, and competition.

Offset Upper Support Bearing Mounts-Improves caster and camber angles for better front end traction and reduced outer edge tire wear. Sold in pairs. P/N 3131143

Offset Lower Control Arm Bushings-Improves caster and camber angles, also provides necessary clearance for larger wheel/tire packages. This hard rubber bushing reduces fore and aft wheel movement for more precise steering. Sold in pairs. P/N 3112222

Rear Subframe Mounts-Stronger than stock, built to handle the increased loads of modified suspensions and engines. Sold in pairs. P/N 3330108

Differential Mount Bushing-Prevents unwanted differential movement under high loads. P/N 3330109.

Complete Hard Rubber Kit-Includes all above part numbers in a convenient kit. P/N 31501E30.

Offset Rear Trailing Arm Bushings-Used for making small camber and toe changes to the rear suspension. Sold in pairs. P/N 332202203

Polyurethane Bushings

Trailing Arm Bushings-Complete kit with metal sleeves. Can be used on the street or track. P/N 332202204

Delrin Bushings-Delrin solid suspension bushings are designed for hardcore autocrossing and road racing.  This bushing material will not deflect durning hard cornering.  This produces very precise steering, turn in, and quicker cornering.   Road noise and vibration are transmitted directly.  Due to their harshness, we do not recommend them for normal street use.

Offset Lower Control Arm Bushings-P/N 311202325 (pair)

Differential Mount Bushing-P/N 33120325

Trailing Arm Bushings-P/N 331201002 (complete kit)