Product Details
The Studio RSR bolt-in roll bar for the 1984-1991 BMW 3 Series stiffens your chassis where it matters most, giving you sharper, more confident handling on track and a serious step up in occupant protection for HPDE, time attack, and weekend racing. It is engineered specifically for the 3 Series, so it follows the lines of the interior and bolts to the car's factory mounting points for a tight, purpose-built fit.
Designed and built in-house in the USA, every 3 Series four-point structure uses wide-radius mandrel bends and CNC-machined interlocking clamps for a clean, race-grade look and a precise, repeatable install. It installs without cutting or welding, so your interior stays clean and the bar can come back out if you ever sell the car. Choose DOM mild steel or lightweight 4130 chromoly, finished in your choice of powdercoat color at no extra cost.
Features
- 100% bolt-in 4-point half-cage — no welding or drilling required
- Engineered to the car's factory mounting points with form-fitted steel brackets
- Wide-radius mandrel bends for even stress distribution — no crimping or tube-wall failure
- Proprietary CNC-machined chromoly interlocking tubing clamps
- Built to NASA road-racing geometry (per 2016.5 rulebook; not NASA-sanctioned)
- Grade-8 mounting hardware and installation instructions included
- Choice of DOM mild steel or lightweight 4130 chromoly tubing
- Powdercoated in Black, White, Red, or Yellow at no additional cost
- Ships as 2 main pieces for easier handling and install
- Designed and manufactured 100% in the USA
Installation
This is a true bolt-in structure that mounts to the 3 Series's factory hard points — no welding, no drilling, and no cutting of the chassis. The interlocking tubing clamps let the bar go together inside the car and come apart again if needed, and all Grade-8 hardware plus step-by-step instructions are included. Professional installation is recommended.
Specifications
| Part Name | Studio RSR 4-Point Roll Bar |
| Vehicle | 1984-1991 BMW 3 Series |
| Chassis | E30 |
| Configuration | 4-Point Half-Cage (Roll Bar) |
| Mounting Points | 4 |
| Material | DOM Mild Steel or 4130 Chromoly |
| Tubing | 1.75 in OD x 0.095 in wall |
| Tube Bends | Wide-radius mandrel-formed |
| Finish | Powdercoat — Black, White, Red, Yellow |
| Mounting | Bolt-in to factory points; no welding |
| Hardware | Grade-8 mounting hardware included |
| Ships As | 2 main pieces |
| Made In | USA |
| Notes |
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Vehicle Fitment
- 1984 BMW 3 Series (E30)
- 1985 BMW 3 Series (E30)
- 1986 BMW 3 Series (E30)
- 1987 BMW 3 Series (E30)
- 1988 BMW 3 Series (E30)
- 1989 BMW 3 Series (E30)
- 1990 BMW 3 Series (E30)
- 1991 BMW 3 Series (E30)
Important Fitment Note
This roll bar is intended for off-road and competition use only.