Bexco Automotive
1991 Porsche 911 (964) IROC Whale Tail
1991 Porsche 911 (964) IROC Whale Tail
Not sure it fits your build? Ask us about this part or call 858-345-5644. Include your year, model, and any body or brake modifications.
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This is the wide, 53-inch IROC whale tail and replacement deck lid for a 1991 Porsche 964 Carrera 2 or Carrera 4 build. GT Racing part 16A uses the earlier 911 deck-lid mounting pattern and weighs about 15 lb. It replaces the lid rather than fitting into the factory electric spoiler.
How does it mount to a 964?
The original tubular 964 hinges need the 11A hinge-adapter pair, sold separately. Those adapters connect the earlier lid pattern to the C2/C4 hinges. If your hinges have already been changed, identify the mounting pattern before ordering hardware.

Grille and fitting details
The small 16G aluminum grille for the rear recess is separate. It is the small rear grille, not the large engine-grille opening shown in the photo. Plan the grille pieces and check engine-bay clearance, hinge movement and latch alignment during trial fitting.
Prefer the early Turbo shape? Compare the part 16 whale tail. For the wider tail's other applications, see the main IROC whale-tail listing or browse 964 tails and spoilers.
Application notes
A 53-inch IROC tail and replacement deck lid for a 1991 964 C2/C4 build. Original tubular hinges need the separate 11A adapter pair.
Fitment and installation
Porsche 964
Listed year: 1991
Check the additional parts and hardware listed below.
Your car will need:
- 964 C2/C4 tubular decklid hinges
- Original tubular 964 C2/C4 hinges need the separate 11A adapter pair.
- Check the grille pieces, engine-bay clearance, hinge movement and latch alignment before paint.
Parts you may need separately
- 911 (964) Hinge Adaptors — GT11A connects the earlier 911 decklid bolt pattern to tubular 964 hinges.
Check these notes against the parts already on your car. Body panels may need trimming and alignment; trial-fit before paint.
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More tails and spoilers
Different styles and specifications. Check the fitting notes on each product.