Autopower Industries

Performance Driving Equipment


Roll Bars & Cages

77-83 BMW 320 E21

Our roll bars and cages meet or exceed the safety requirements for most competition sanctioning organizations. Our bars and cages have been designed to easily install and provide maximum protection. The fit in your vehicle allows quick and easy entry and most importantly, quick exiting, while conforming closely to your interior for a clean, unobtrusive look and feel.

All of our bars and cages are certified MIG welded and precision jig notched, providing you with the maximum strength and best fit available. Every roll bar or cage has been designed to fit ­specific car models so only minor ­modifications are necessary for the instal­lation. Most applications are a true bolt-in and require NO WELDING.

Images on this page are not vehicle specific. Actual shape will conform to the features of your vehicle.


Street Roll Bar

61870

77-83 BMW 320 E21

This roll bar will give your street car a performance look and style.

  • In most cars rear seats and/or convertible top remain in place and useable.
  • 4 point roll bar is made of 1.750 x .120 DOM mild steel tube.
  • All necessary installation and mounting hardware with back-up plates is included.
Street Roll Bar

Street-Sport Roll Bar

52870

77-83 BMW 320 E21

Our Street-Sport bar is just what you need for your high performance street car.

  • Designed for high performance street use.
  • Bolt-in harness mount tube for easy installation of safety harnesses.
  • Bolt-In Removable horizontal harness.
  • 4 point roll bar is made of 1.750 x .120 DOM mild steel tube.
  • All necessary installation and mounting hardware with back-up plates is included.
Street-Sport Roll Bar

The Street-Sport Roll Bar has a bold in harness mount tube for easy installation of harnesses and access to the back seat for street use.

Harness Mount Tube

Race Roll Bar

60870

77-83 BMW 320 E21

The race roll bar is designed for solo, autocross and high speed time trials. All Race roll bars have a diagonal cross brace and most have a harness mount tube.

  • Autopower will select tube size and type for your needs.
  • Race roll bars are made with 1.750 x .120 DOM steel.
  • Cars weighing more than 3500 lbs. use 2" x 120 ERW steel.
  • 4 point mounting with welded diagonal cross brace.
  • All necessary installation and mounting hardware with back-up plates is included.
Race Roll Bar

Race Roll Bar with Options

60870

77-83 BMW 320 E21

This 4 point roll bar has a bolt-in diagonal cross brace and harness mount tube.

  • Optional bolt-in diagonal and harness tube can be ordered for this roll bar.
Race Roll Bar with Options

Quick and easy installation and removal of these race roll bar options allows for access to the back seat for street use.

Harness Mount Tube

U-Weld Roll Bar

31870

77-83 BMW 320 E21

Cross brace and harness mount tubes are tacked, rear braces are not notched. 4 mounting pads can be welded or bolted to the car.

U-Weld Roll Bar

U-Weld Front Cage Kit

32870

77-83 BMW 320 E21

This cage kit welded to an Autopower roll bar makes a race legal 6 mounting point roll cage. Autopower will choose tubing size when you place your order.

Most Kits Include:

  • 2 forward support brace tubes.
  • Top windshield cross tube.
  • 4 door guards.
  • Under dash bar.
  • 4 top corner gussets.
  • All necessary installation and mounting hardware with back-up plates included.

U-Weld Full Cage Kit

33870

77-83 BMW 320 E21

This welded kit makes a race legal 6 mounting point roll cage. It closely conforms to your car’s interior, allowing quick entry & exiting. Precision fit, 6 mounting point U-Weld design.

Suitable for road racing, drag racing, rally racing, land speed and other high performance applications.

  • Top of the line in fit and construction.
  • U-Weld cages are made to order, allowing for tube size and type to be selected.
  • Known as the best fitting pre-fab cage available.

Also called: E21


77 BMW 320 E21
1977 BMW 320 E21
78 BMW 320 E21
1978 BMW 320 E21
79 BMW 320 E21
1979 BMW 320 E21
80 BMW 320 E21
1980 BMW 320 E21
81 BMW 320 E21
1981 BMW 320 E21
82 BMW 320 E21
1982 BMW 320 E21
83 BMW 320 E21
1983 BMW 320 E21

PAINT FINISH Most steel products are sprayed with an industrial grade gloss black cover coat for rust protection. EXPECT some paint damage during shipping. You may want to refinish products before final installation. You must check fitment and drill all holes before you have the roll bar re painted, powder coated or any other finish added to the product. AUTOPOWER is not responsible for any cost of aftermarket coatings. There is no paint finish guarantee.