1965–98 Porsche 911, air-cooled chassis stiffening
4 kits to stiffen the frame, from frame rails and connectors to braces and roll bars.
Stiffening kits
| Area | Kit | What it is | Price |
|---|---|---|---|
| Shock & strut tower braces | Rennline Billet Strut Tower Brace - 2 Point (SB160.90) | Bolt-in adjustable aluminum brace, 1966-89 911/930. | $207 Listed price Source |
| Shock & strut tower braces | Rennline Strut Tower Brace - RSR Weld On (SB81.91) | Brackets weld to front towers; adjustable bar; 1965-89 911/912/930. | $262 Listed price Source |
| Seam & weld-in plates | Elephant Racing Rear Coilover Crossmember (Shock Tower) Reinforcement Kit | One of several 1965-89 weld-in reinforcement kits (control arm, spring plate, swaybar). | See source No price on category page Source |
| Roll bar & cage | Autopower (sold by PMB Performance) Street-Sport Roll Bar for Porsche 911/912 (1964-89), 52340 H | 4-point bolt-in DOM bar with harness bar. | $739.95 Sale price (was $869.96) Source |
Prices are from the linked seller pages and change often. Confirm fitment for your exact year and body style before ordering; many weld-in parts need professional installation. Some links earn us a commission.
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