The Enhanced Fit Kit provides every bespoke part you need to physically mount an Audi 20V in a Porsche Boxster with a functioning clutch and electronics system. The kit is supplied with a hardbound build manual that details specifics ranging from the cooling systems to wiring looms and details off the shelf parts and components as required.

PN: BST012

Front Engine Mounting

The front engine mounting comprises of three parts, the upper mount, the tombstone mount and the anti rotation mount all of which are CNC machined from billet aluminium.

These components bolt to the VAG 06A block using the same mounting locations as used by production VAG vehicles and pickup the standard Porsche front engine mount at the original location. No changes or modification to the monocoque are required in any way.

PN: BST014

Flywheel

The Audi 20V is fitted with a dual mass flywheel as standard which carries a 220mm clutch. Whilst acceptable for reliable use at lower torque outputs in a front wheel drive application for use at higher engine outputs in a mid engine application a higher performance solution is required.

When engineering this solution reducing weight and common failure points in the flywheel design was also a high priority and as such the flywheel is of a single piece, single mass design and is engineered to carry the 240mm clutch used in the Audi RS4.

The RS4 clutch offers standard road car levels of driveability and increased durability in the Booster application with a manufacturer torque capacity of 325ftlbs, the spline of the friction plate is also directly compatible with that of the 012 986 gearbox and as such the gearbox requires no modification.

PN: BST009

Gearbox Mounting And Crossmember Mod Kit

To place the engine and gearbox in the optimum position and take advantage of the opportunity to reduce the centre of gravity the gearbox mounts and cross member must be modified. The modification kit provides a 3D printed cut template and laser cut steel weld ins to allow for easy modification of the gearbox mounts along with a weld in laser cut and prefolded cross member element that also forms the required cut template. All modified parts are bolt in and no modifications to the monocoque are required in any way.

For those who don’t have a friendly welder or don’t have the capability to weld these components themselves then let us know, we’ll provide you with contact details of someone who can help.

PN: BST0016

Coolant Temperature Sensor Kit

The standard coolant temperature sensor fitted to the rear of the cylinder head on the VAG 20V is extremely tall. When fitting the engine to a Boxster this causes a clash against the rear of the engine bay.

The coolant temperature kit includes a low height flying lead coolant temperature sensor which is a direct fit to the standard housing and is calibration identical to the standard sensor. A loom side connector is also included which uses the terminals present on the standard loom to allow fitment of a flat connector - you don’t even need a crimping tool.

PN: BST021

Throttle Body and IAT Extensions

The repower fit kit is designed around the use of a Passat or A4 inlet manifold, when using this manifold with the wiring loom from a Golf/TT/A3 the throttle body and IAT sensor connectors come up short.

Two extensions are supplied which use OEM connectors to allow connection of the Throttle Body and IAT to the standard FWD engine wiring loom.

PN: BST033

High Flow Fuel Pump Kit

The standard Boxster fuel pump is suitable for low 300bhp power outputs. To support power outputs up to 500bhp the high flow fuel pump kit includes a 340 litre per hour, high pressure fuel pump mounted in the later 986.2 fuel pump housing, which is directly compatible with the .1 chassis 2.5L cars. The high flow fuel pump assembly is a straight swap for the original fuel pump assembly and connects to the original tank top / level sensor assembly.

PN: BST0027

Fastener Kit

The standard gearbox mounting bolts are not compatible with the 06A VAG engine. The fastener kit is supplied with a complete set of gearbox bolts to allow the Porsche specification 01E gearbox to bolt to the 06A engine.

In addition all fasteners required to fit the front engine mount assembly and secure the standard Porsche front engine mount are also included.

PN: BST0027

The Manual

The manual is an extensive hard bound tome designed to be a reference guide when building a Booster. It includes the following topics:

General Build Guide: How to remove the M96 flat 6, getting the 20V ready to fit, sensible things to do during the process and what tools make it easy.

Standard Parts, the repower kit includes all required bespoke parts which are not available “off the shelf”. The standard production parts required for the repower are extensively detailed with part numbers and quantities to allow for quick and easy ordering from your preferred motor factor or local VAG dealership.
Wiring Looms and the ME7.5 ECU, how to modify a VW FWD 20V engine loom to plug and play with a 986 Boxster, how to use a standard ME7.5 ECU, aftermarket ECU options, Porsche and VW Connector pin outs, wire colours and much more.
Cooling System and how to integrate the 20V engine cooling system with the existing 986 cooling system. What off the shelf parts are required and what needs to go where.
Exhaust system, how to modify and reuse the standard silencer box, aftermarket exhaust system options, sensible downpipe sizes and where to locate the Lambda sensor and Catalytic converter.
….. and more.

The Full BOM (Bill Of Materials)… Everything that’s in the kit:

    
            Part Number
            Description
            Note
            Location
            Quantity 
        

    
            BST024A01
            Gearbox Mounting Bolt Long 
            M12 X 100
            Gearbox
            2 
        

            BST024A02
            Gearbox Mounting Bolt Medium
            M12 X 90
            Gearbox
            2 
        

            BST024A03
            Gearbox Mounting Bolt Short
            M12 X 60
            Gearbox
            2 
        

            BST024A04
            Gearbox To Sump Mounting Bolt
            M10 X 45
            Gearbox
            3 
        

            BST024A05
            Upper Engine Mount To Engine Bolt
            M10 X 80
            Engine
            3 
        

            BST024A06
            Engine Mounting Plate To Upper Engine Mount Bolt
            M10 X 120
            Engine
            3 
        

            BST024A07
            OE Engine Mount To Engine Mounting Plate
            M10 X 45
            Engine
            4 
        

            BST024A08
            Engine Mounting Plate To Anti Rotation Bracket Bolt
            M10 X 35
            Front Mount
            2 
        

            BST024A09
            M10 Washer
            Form A
            Misc
            15 
        

            BST024A10
            M12 Washer
            Form A
            Misc
            6 
        

            BST024A11
            Front Engine Mount Upper
            Billet - As Machined Finish
            Front Mount
            1 
        

            BST024A12
            Engine Tombstone Mount
            Billet - As Machined Finish
            Front Mount
            1 
        

            BST024A13
            Engine Anti Rotation Bracket
            Billet - As Machined Finish
            Front Mount
            1 
        

            BST024A14
            Flywheel Billet Single Mass RS4 Clutch
            
          Engine
            1 
        

            BST024A15
            Gearbox Mount Cut Guide
            
          Chassis
            1 
        

            BST024A16
            Gearbox Mount Weld On Drop Kit
            
          Chassis
            1 
        

            BST024A17
            Crossmember Weld In Notch Kit
            
          Chassis
            1 
        

            BST024A18
            High Flow Fuel Pump Kit
            400 LPH
            Fuel Tank
            1 
        

            BST024A19
            Coolant Temp Sensor
            Modified OE VAG
            Engine
            1 
        

            BST024A20
            Coolant Temp Sensor Low Height Mod Kit (MFAC Fit Before Shipping)
            Excluding Connector
            Engine
            1 
        

            BST024A21
            Coolant Temp Sensor 4 Way Wide Male Connector (MFAC Fit Before Shipping)
            Fit To Coolant Temp Sensor
            Engine
            1 
        

            BST024A22
            Coolant Temp Sensor 4 Way Wide Female Connector - Loom Side
            Supply Bare Connector
            Loom
            1 
        

            BST024A23
            Throttle Body Extension Loom
            Engine
            1 
        

            BST024A24
            Air Temp Sensor Extension Loom
            Engine
            1 
        

            BST024A25
            Ignitron ECU Mounting Bracket Kit
            No Cost Option
            Misc
            1 
        

            BST024A26
            0.5mm Inline Wire Splice
            Harness Modification Kit
            Loom
            22 
        

            BST024A27
            1.5mm Inline Wire Splice
            Harness Modification Kit
            Loom
            11 
        

            BST024A28
            Adhesive Lined Heat Shrink 3:1 Pre Cut Length 6mm
            Harness Modification Kit
            Loom
            33 
        

            BST024A29
            14 Way VAG Female Loom Connector
            With Terminals & Seals
            Loom
            1 
        

            BST024A30
            6 Way VAG/Bosch Female Connector
            With Terminals & Seals
            Loom
            1 
        

            BST024A31
            6 Way VAG/Bosch Male Connector
            With Terminals & Seals
            Loom
            1 
        

            BST024A32
            2 Way Junior Timer Connector
            With Terminals & Seals
            Loom
            1 
        

            BST024A33
            2 Way VAG 1.5MM Female Connector
            With Terminals & Seals
            Loom
            1 
        

            BST024A34
            8 way VAG/Bosch 0.5mm Male Connector
            With Terminals & Seals
            Loom
            1 
        

            BST024A35
            8 way VAG/Bosch 0.5mm Female Connector
            With Terminals & Seals
            Loom
            1 
        

            BST024A36
            Booster Conversion Manual - Printed And Bound
            
          Misc
            1
        

Want to build a Booster? Click here to order the fit kit.