Description
AST Weld-in Roll Cage Nissan Silvia S14 Coupé V5
The Weld-in S14 V5 is the most comprehensively equipped weld-in cage AST designs for the Nissan Silvia S14 Coupé. A full roll cage with eight welded mounting points and the complete set of bars, supplied as a weld-in kit.
Where the V4 stops at a harness bar and one extra diagonal brace, the V5 carries on until the structure is fully designed all the way round. For a car that competes and where the regulations call for the most comprehensive bar layout, this is the version you are looking for.
Key benefits
- Complete set of bars: the highest specification level in the weld-in range.
- Eight welded mounting points: the cage is permanently welded to the bodyshell.
- Door bars and harness bar: side protection plus a fixed point for your shoulder straps.
- Front reinforcement bars: the structure continues through to the bulkhead.
- X-shaped rear structure: the rear section is braced in an X.
- E355 steel: main hoop with a diameter of 45 mm, the rest of the structure 40 mm.
- Custom reinforcement plates: 3 mm thick steel, designed for each specific car rather than as a universal part.
- Exact fit: the bodyshell is digitised with laser scanners before the cage is designed in 3D.
Suitable for
Nissan Silvia S14, 2-door coupé
- Nissan Silvia S14 Coupé, known in some markets as the 200SX or 240SX
- Type: full roll cage, weld-in, version V5
- High-level drifting and competition
This cage is designed around the two-door S14. This version anchors in the rear suspension area and is made for a roof without a sunroof and without headlining.
Technical specifications
- Manufacturer: AST Roll Cages
- Manufacturer part number: CMBN01676
- Sunroof: for roofs without a sunroof
- Headlining: for roofs without headlining
- Rear anchorage: in the rear suspension area
- Rear structure layout: X design
- Type: full roll cage, permanently welded in, complete set of bars
- Main hoop: E355 steel, 45 mm diameter
- Secondary structure: E355 steel, 40 mm diameter
- Reinforcement plates: 3 mm steel, custom-designed for each car
- Mounting: 8 welded mounting points on the bodyshell
- Weight: 210 kg (manufacturer’s figure)
- Finish: supplied as a weld-in kit, unpainted
- Included: weld-in kit, gussets, reinforcement plates, bolts, washers and nuts, documentation, fitting instructions and sticker set
Fitting and delivery
The cage is built to order; the standard delivery time is 15 to 35 working days. This is the most extensive fitting job in the weld-in range: the entire interior comes out, as do the dashboard and the door cards, and the cage is welded to the bodyshell at eight points. Allow several days of work at an experienced roll cage builder. This cage is intended for track and competition use; check the regulations of your own sporting organisation beforehand.
Everything AST can design for an S14, in a single unpainted weld-in kit.
Why choose this Weld-in S14 V5?
If you compete in a class where the cage is scrutineered, you do not want any discussion about missing bars. The V5 gives you the full specification of this range and is welded in, so it is as rigid as this bodyshell can get. You give up space and convenience for it, but in return you get a car that leaves no questions unanswered.
Frequently asked questions
What does the Weld-in S14 V5 add compared with the V4?
The complete set of bars. Where the V4 stops at an extra diagonal brace and the harness bar, the V5 has the entire structure fully designed.
Is this cage suitable for competition?
It is built for competition use. The exact requirements vary by class and by country, so check the regulations of your own motorsport governing body.
Is there a version with NASCAR door bars?
Yes, AST also offers this version with curved NASCAR door tubes.
How involved is the fitting?
It is the most extensive fitting job in the range. The entire interior has to come out, and the cage is welded to the bodyshell at eight points.
What is the delivery time?
The standard delivery time for this roll cage is 15 to 35 working days, as AST builds every cage to order.








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