Classic Porsche 911 Race Parts & Outlaw Builds: The Ultimate RS / RSR Guide
From the homologated 1973 Carrera RS to today’s bespoke outlaw hot-rods, pre-1999 air-cooled 911s remain the gold standard for analog performance. This long-form resource breaks down the best race-proven upgrades & styling tweaks—sport-purpose bodywork, wide-fender conversions, engine & suspension mods, interior and safety gear—backed by parts you can order right here on Bexco Automotive.
Porsche 911 RS & RSR: Small-Batch Racing Legends
The Carrera RS debuted with a larger 2.7-L flat-six, wider flares, bigger brakes and the famous ducktail spoiler. Its competition sibling—the 911 Carrera RSR 2.8—pushed output to roughly 300 hp and dominated GT endurance racing. Today you can replicate that look with modern composites and precise fitment.
Kick off an authentic build with our 1973 RSR Body Kit — everything needed to turn an early long-hood shell into an RSR-spec beast.
What Makes a “911 Outlaw” Build?
An outlaw 911 throws concours correctness out the window: bigger engines, modern EFI, coil-overs, race buckets, personalized paint—whatever serves your vision. The result? A one-of-one hot-rod that still honors Porsche’s competition DNA.
Core Performance Upgrades
Engine & Exhaust
- Larger pistons & cylinders (e.g. 2.7 → 2.9 L or 3.0 → 3.4 L) plus performance cams.
- Twin-plug ignition for cleaner combustion at high rpm.
- Individual-throttle-body EFI or big PMO carbs for maximum airflow.
- Equal-length headers and lightweight megaphone or sport mufflers.
Suspension & Brakes
- Thicker torsion bars or true coil-over conversions with adjustable dampers.
- Poly / monoball pivot bushings and adjustable sway bars.
- 930 Turbo or aftermarket four-piston big-brake kits with braided lines.
Lightweight Body & Aero Mods
- 11″ RSR Rear Fender Flares for massive 315-section tires.
- 9″ RSR Front Flares (’65-’73) to balance the stance.
- RSR Front Bumper with center oil-cooler inlet.
- Ultra-light Race Doors to shed serious kilograms.
- RSR Back-Date Conversion Kit (’74-’94) for later chassis.
Interior, Safety & Driver Feel
- Bucket seats and 5-point harnesses paired with a half-cage for track days.
- MOMO Prototipo wheel for quicker steering and period-correct flair.
- Delete rear seats, fit RS-style carpet, mount a fire extinguisher—easy weight savings.
Classic 911 Race-Parts FAQ
Which years does this guide cover?
All air-cooled 911s from 1965-1998 (964/993 included), with emphasis on long-hood ’65-’73 cars and impact-bumper ’74-’89 chassis.
Do widebody flares hurt resale value?
Quality steel or OEM-style fiberglass flares installed cleanly often increase desirability among RS/RSR and outlaw enthusiasts—especially when well-documented.
Will an RSR body kit fit my 1986 Carrera?
Yes—use the dedicated back-date conversion kit linked above, which includes correct mounting brackets for ’74-’94 chassis.
Next Steps: Build Your Dream 911
Define your vision—period-correct RS tribute, all-out RSR track weapon, or personal outlaw. Then balance power, chassis and safety in stages, using premium components and documenting every step. When you finally bolt on the first flare or fire up that freshly rebuilt flat-six, you’ll understand why these cars— and the culture around them—are legendary.
