handling

STI Stage 4 Tuning Package - 9,500.00* inc. VAT, 9,250.00** inc. VAT or 10,050.00 inc. VAT

*Original Turbo, Intercooler and Injectors exchanged subject to condition.

**PPP Package, Original Turbo, Intercooler and Injectors exchanged subject to condition.

Price is inclusive of fitment, mapping and rolling road tested.

Please call us on 07973 787812 or E-mail to book a test drive in our Stage 4 Demo Car and discuss any optional extras and prices.

Flywheel Power Output:

GRD Race Exhaust System - Weighing in at just 16KG`s this exhaust is possibly the lightest on the market - a massive 40% lighter than the standard system. Using fully slip jointed stainless steel construction this exhaust gives exceptionally good flow as it utilises a very straight and smooth exhaust path.

Specification is as our Drag Exhaust System but instead re-vents exhaust gas from the screamer pipe back into the mainpipe reducing noise levels to help comply with both track and road regulations.

Custom Turbo With Garrett GT30 Roller Bearing Internals - Custom Turbo With Garrett GT30 Roller Bearing Internals.

Samco Turbo Inlet Pipe - This Samco Turbo Inlet Pipe omes with integral aluminum inlet reinforcing ring and 5 aluminum vacuum spouts. This fits underneath the inlet manifold and has been developed for hybrid turbos with a 76mm inlet.

GRD Stainless Steel Exhaust Manifold And Turbo UpPipe - Made from high grade stainless steel pipe work, flanges and smooth flowing joining faces thus removing and kind of gas flow restriction. This results in an increase in torque, engine response and a smoother delivery of power.

Hyperflow Monster Front Mount Intercooler - The system is fully complete and ready to bolt on, retains the Factory fog lights, does not compromise strength, requires no cutting and is supplied with the Hyperflow Billet mounts and blow off valve bracket. A high flow Intake system is also required with the Monster Intercooler System, fully engineered Rampod and cold air intake systems are available from Hyperflow to compliment the system.

Hyperflow Wing Mount Air Intake - Unlike ram pods which source hot air from under the bonnet, this system delivers cold air from the inner guard for optimum engine performance.

Syntek Motorsport Fuel Pump - A crucial part to any engine modifications, is the ability to reliably supply your engine with enough fuel. This pump directly replaces the standard unit and has the ability to supply 2.25 litres per minute @ 5 bar pressure. The standard pump generates 1.1 litres per minute @ 5 bar.

650cc Fuel Injectors - They are 650cc and will improve your fuel delivery for high safe horsepower when used in conjunction with one of our Fuel Pumps.

Apexi AVC-R Boost Control - The A'PEXi Super AVC-R is the ultimate boost controller. It is the only boost controller on the market boasting an integrated injector pulse monitor. It is the only boost controller on the market engineered to increase boost response (up to 1500 RPM in some vehicles). The A'PEXi Super AVC-R is the only boost controller with an RPM-specific self-learn mode which allows the boost controller to memorize the boost characteristics of a particular vehicle and adjust the boost pressure accordingly. This allows the unit to control boost unlike any other unit on the market. Vacuum and boost pressure are shown on the unit's easy-to-see display. A series of colored LED's also serve as a bar graph and monitor for the unit's various functions. The booster controller is a boost duty setting that allows the user to control the amount of boost overshoot. The Super AVC-R is the only boost controller that combines the self-learning mode with an RPM specific overshoot protection feature for unparalleled boost stability. There are no dangerous calibration modes associated with Fuzzy Logic systems.To control boost, the Super AVC-R uses a high-quality solenoid valve as opposed to a stepping motor. This is the same technology that was used on the turbocharged Honda F-a race cars. These solenoid valves are proven to control boost more accurately and are much sturdier in design and construction than a stepping motor. The Super AVC-R reads information from an injector pulse signal wire from the vehicle's ECU and a self-contained pressure sensor. The signals are then interpreted by the AVC-R and used to control the solenoid valve. Gear Judge Feature allows full boost to be achieved in every gear giving huge gains in performance. Switchable settings allow for low and high boost to suit driving conditions.

EcuTek ECU - We use EcuTek software to reprogram your ECU via the diagnostic port of the car. We retain all the car's clever electronics but re-map ignition curves, fuel maps and the closed loop boost control system. The ECU remains programmable so if in the future something needs to be changed then we can. The only way to tell that that either conversion has been performed is to drive the car. There are no visual clues. Even the Subaru diagnostic tool does not show that the ECU has undergone brain surgery.

Rolling Road Tested - Our Dyno Dynamics chassis dynamometer measures engine power via the driving wheels in an accurate and repeatable method. Your vehicle's dyno runs are recorded in real time, and printed out in full color for your records.


Optional Extras

Please call us on 07973 787812 or E-mail to discuss any optional extras and prices.

Exhaust Downpipe And Manifold Heat Wrapped Or Ceramic Coated - This serves 2 purposes. To reduce heat soak into the engine bay and to keep the internal pipe wall temperatures up to aid the removal of waste gases through the exhaust system.
Downpipe Heat Wrap 50.00 inc. VAT Fitted
Manifold Heat Wrap 100.00 inc. Vat Fitted

Turbosmart Blow Off Valve - Features the unique variable exhaust port system resulting in superior venting of excess pressure, a popular choice for the street. Fully adjustable via Turbosmart's unique Quick Wrist action (no tools required). Supplied with full fitting kit (where required). Easy DIY fitment.

Hyperflow Engine Oil Cooler - An oil cooler has a number of advantages: it increases the volume of oil in the system which means each unit of oil is doing less work, and lowering the oil temperature will reduce engine operating temperature dramatically.

Hyperflow Oil Catch Can - Oil vapour can rapidly reduce the octane level of fuel by contamination of the combustion chamber. By diverting this vapour and allowing it to condense in an oil catch tank, you not only remove this vapour and unwanted crankcase pressures, but also help reduce the chance of piston detonation.

Hyperflow Anti-Surge Fuel Pod - It is recognised that fuel surge does occur with light fuel loads in the Subaru WRX, leading to starvation. This shortens range on the track and adds mass to the vehicle, with unnecessarily high fuel loads for Super Sprints and track racing.

Hyperflow Baffled Sump - Titted with a sophisticated internal baffle system for enhanced surge control under extreme G Force conditions. The Sump provides a number of benefits when compared with a standard unit. A 35% increase in Oil Sump capacity. A finned Billet machined base plate to significantly increase cooling. Heavy Duty Alloy construction and thick billet base plate to reduce chance of puncturing. Two levels of internal baffling to dramatically reduce oil surge. Precision machined billet mounting flange - perfect fit.

Motec/GEMS/Autronic Re-Mapable ECU - Fully Re-Mapable ECU's whose featurs include Anti-Lag, Launch Control, Switchable Maps and Data Log.

DEFI Guage Kit - Includes Oil Temp Guage, Oil Pressure Guage, Boost Pressure Guage and Mounting Pod.

GRD Aquamist Kit Running 50/50 Methanol And Water - The main function of these systems is to suppress detonation caused by high temperature and pressure developed within the combustion chamber.

GRD Drag Exhaust System - Weighing in at under 16KG`s this exhaust is possibly the lightest on the market - a massive 40% lighter than the standard system. Using fully slip jointed stainless steel construction this exhaust gives exceptionally good flow as it utilises a very straight and smooth exhaust path.

With a unique Screamer Pipe design this exhaust system vents exhaust gases seperately from the exhaust turbine and turbo waste gate through a main 3" pipe and a second 1.5" pipe. Other exhausts on the market use an open neck design causing the paths of the exhaust gases collide once the turbos wastgate is opened, causing exhaust gas turbulance and reducing the speed at which gas can flow creating backpressure. This in turn slows down the turbo reducing the speed at which and its ability to flow air and causes exhaust gas to stay in the combustion chamber longer creating unwanted heat buildup, lowering the point of ignition advance before detonation will occur. This exhaust will give the advantage over a regular open neck downpipe of the ability to increase ignition advance, increase the speed at which the turbo can spool up and the amount of air which it can flow. All leading to a significant increase in both power and torque.
Replaces GRD Race Exhaust System: 150.00 inc. VAT Fitted

GRD Sport Exhaust System - Weighing in at just 16KG`s this exhaust is possibly the lightest on the market - a massive 40% lighter than the standard system. Using fully slip jointed stainless steel construction this exhaust gives exceptionally good flow as it utilises a very straight and smooth exhaust path.

Fully Road Legal and MOT friendly this exhaust has all the same features as the GRD Race Exhaust System but uses a 300 CELL Sports Catalitic Convertor to help it to conform with current MOT exhaust emmisions requirements. This will however reduce exhaust gas flow, slightly reducing potential power output especially on high power applications.
Replaces GRD Race Exhaust System: 350.00 inc. VAT Fitted