VTT A90/A91 TOYOTA SUPRA BOV SILICONE CHARGE PIPE KIT

VTT is proud to offer our BOV Silicone Charge Pipe Kit for the Toyota A90/A91 Supra, designed to eliminate the restrictive, multi-connection factory charge pipe system while adding a high-quality external blow-off valve option.

The factory system utilizes multiple sections and connections between the turbocharger and throttle body. The VTT system replaces that arrangement with a single 6-ply, heat-resistant, wire-reinforced silicone charge pipe rated to over 200 PSI.

The result is a simpler, stronger charge-air system with fewer potential boost-leak points, a full 3-inch flow path, excellent thermal isolation, and your choice of external BOV.

Built for everything from stock-turbo street cars to high-boost performance applications.

KEY FEATURES

• 6-Ply Wire-Reinforced Silicone Construction
• Rated to Over 200 PSI
• Full 3″ Charge-Air Path
• Reduces Factory Connections from Four to Two
• CNC-Machined Barbed Connection Adapters
• Integrated External BOV Flange
• Turbosmart RacePort Gen V or HKS SSQV Options
• Dual 1/8″ NPT Methanol/Auxiliary Ports
• VTT-Branded CNC Sensor Adapters
• Heavy-Duty VTT T-Bolt Clamps
• Designed for A90/A91 Supra Fitment
• Compatible with Aftermarket Intake Manifolds We Have Tested
• Fast, Straightforward Installation

FEWER CONNECTIONS. FEWER FAILURE POINTS.

One of the biggest advantages of the VTT design is eliminating unnecessary connections in the factory charge-air system.

The factory arrangement utilizes four primary connections between the turbocharger and throttle body.

The VTT system reduces that to just TWO.

Fewer connections mean fewer potential boost leaks and fewer opportunities for a charge pipe to separate under high boost.

Our CNC-machined adapters feature barbed, multi-ridge retention surfaces designed to mechanically grip the reinforced silicone hose. Combined with the supplied heavy-duty VTT T-bolt clamps, the connection becomes extremely difficult to pull apart under boost.

No more worrying about a charge-pipe connection blowing apart during a hard pull, at the track, or on the road.

6-PLY WIRE-REINFORCED SILICONE

This is not a basic silicone coupler being used as a charge pipe.

The VTT pipe utilizes 6-ply, heat-resistant, wire-reinforced silicone construction rated to over 200 PSI.

The internal reinforcement provides the strength necessary for serious boost pressure while preventing expansion and deformation.

The silicone construction also helps thermally isolate the charge-air path from conducted engine-bay heat compared with a conventional metal charge pipe.

You get the strength required for high-boost use without turning the entire charge pipe into another piece of heat-soaked aluminum sitting inside the engine bay.

FULL 3″ FLOW PATH

Flow was a major consideration when designing the VTT system.

The hot-side connection begins at:

64mm / 2.50″ at the turbocharger outlet

It then immediately transitions to:

77mm / 3.00″

From there, the system maintains a FULL 3-INCH DIAMETER all the way to the throttle-body inlet.

No unnecessary reductions or restrictive transitions.

INTEGRATED EXTERNAL BLOW-OFF VALVE

For customers who want additional boost venting during throttle lift—or simply want the unmistakable sound of an external BOV—the VTT charge pipe incorporates a dedicated blow-off valve flange.

We offer two BOV options:

TURBOSMART RACEPORT GEN V

If your primary goal is performance and effective boost venting on throttle lift, this is our recommended option.

The RacePort is a proven high-flow BOV designed for serious boosted applications.

HKS SUPER SEQUENTIAL BOV

If your primary goal is sound, the HKS SSQV is the choice.

It provides the distinctive, aggressive HKS blow-off sound that has made the SSQV one of the most recognizable BOVs available.

ALREADY HAVE A BOV?

No problem.

The kit can also be ordered without a BOV if you already have a compatible valve or would prefer to supply your own.

STRUT-BRACE FRIENDLY BOV LOCATION

BOV placement was intentionally considered during development.

We positioned the BOV underneath the charge pipe, keeping it out of the way of common strut-brace configurations.

This maintains a clean engine-bay layout while allowing customers to retain their strut bars without unnecessary interference.

METHANOL INJECTION READY

The CNC-machined throttle-body adapter includes:

TWO 1/8″ NPT auxiliary ports

These can be used for methanol injection nozzles or other compatible pressure/boost accessories.

No drilling or modifying the charge pipe is required.

WHAT’S INCLUDED

• 1 VTT 6-Ply Wire-Reinforced Silicone Hot-Side Charge Pipe with BOV Flange
• 1 VTT Vacuum/Boost Reference Kit with 90-Degree Barb
• 1 BOV of Your Choice — Turbosmart RacePort Gen V or HKS SSQV
• OR No BOV if Supplying Your Own
• 24″ Vacuum Line
• 2 Zip Ties
• 2 VTT-Branded CNC MAP Sensor / Temperature Probe Adapters
• 2 VTT-Branded CNC Turbocharger Outlet / Throttle-Body Adapters
• 2 Integrated 1/8″ NPT Methanol/Auxiliary Ports
• 2 VTT-Branded Heavy-Duty T-Bolt Clamps

INSTALLATION

Installation is straightforward and requires no permanent modification to the vehicle.

For an experienced installer or someone who has previously removed the factory charge pipe system, installation can generally be completed in approximately:

30–45 Minutes

For someone working on the vehicle for the first time, we recommend allowing approximately:

1 Hour

FITMENT

Designed for:

Toyota A90 Supra
Toyota A91 Supra

Compatible with the aftermarket intake manifolds we have tested.

IMPORTANT AFTERMARKET MANIFOLD NOTE

Some aftermarket intake manifolds may require minor trimming of the 3″ silicone end due to dimensional differences between manifold designs.

This is normal and allows the silicone pipe to be adjusted for proper fitment with different aftermarket manifold configurations.

THE VTT DIFFERENCE

The VTT A90/A91 Supra BOV Silicone Charge Pipe Kit isn’t simply designed to replace the factory pipe.

It is designed to simplify and improve the entire charge-air path.

You get a reinforced high-boost silicone construction, a full 3-inch flow path, dramatically fewer connections, secure CNC-machined retention adapters, integrated BOV capability, methanol-ready ports, and a package designed specifically around the tight A90/A91 engine bay.

Fewer connections. Fewer potential boost leaks. Full 3″ flow. Built for boost.