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GIAC USAGIAC USA


GIAC is a software engineering company with 17 years experience tuning cars. We are known for creating "factory smooth" performance software with exceptional power and reliability. Our software replaces the standard software in your car’s engine control unit. It is programmed to adjust ignition timing, fuel delivery, fuel metering, boost settings, rev limiters, and/or speed limiters to optimize performance and, in some applications, fuel economy. Performance-tuned programs are designed to dramatically increase torque and HP without sacrificing smooth drivability. Many programs are also created to accommodate numerous after market performance modifications.

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Best Sellers

Forge Upgraded Air To Air Intercooler - MCS (<2007)

Forge Upgraded Air To Air Intercooler - MCS (<2007)

£494.81


After a comprehensive development program involving thorough testing in various environments we are convinced that you will not find a superior Intercooler for this application.

Our development program included the use of many types of Intercooler core and end tank designs. At the initial stages we ran two development projects alongside each other, one an air to air Intercooler and the other an air to water Chargecooler system. The air to air development achieved significantly improved temperature reductions in comparison, which convinced us to solely concentrate on this option. At each stage of development testing was conducted using a vehicle in various states of tune. (With and without, performance software, supercharger reduction pulleys, bonnet scoops and performance air intake systems.)

With this Intercooler offering up to a 29% reduction over the original equipment it is a must for those wishing to increase engine power.

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KW Variant 3 Coilovers - M3 CSL

KW Variant 3 Coilovers - M3 CSL

£1,560.00


The new Variant 3 is state-of-the-art technology for the skilled and experienced driver. The separate and independent compression and rebound damping options allow a truly individual driving set-up. These unique systems with the 3 individually adjustable components, allows for adjustment of the compression of the damper in the low-speed range, while the highspeed set-up, so decisive for driving comfort, has been preset by our engineers

• Independently adjustable damping technology -rebound and compression damping
• inox-line stainless steel technology at no extra charge
• Individual height adjustment
• German TUEV-tested adjustment parameters
• High-quality components for long life
• Infinitely adjustable rebound damping
• 14- level adjustable compression damping
• Unique, independently functioning damping power adjustment
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VF Engineering Stage2 Supercharger Kit - BMW E46 M3

VF Engineering Stage2 Supercharger Kit - BMW E46 M3

£10,207.66


Supercharger system setup for 8.5-9.0 PSI, V3-SC trim supercharger with air/water cooled cartridge inside cast intake manifold. OEM spring tensioner upgrade, Stage 2/3 Bosch fuel injectors, Hitachi MAF conversion, with custom GIAC Software flash. Requires sport Cats downstream from header. Cold weather requires boost gauge monitoring and AFR gauge monitoring.
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Bastuck Exhaust System - BMW M3 E93

Bastuck Exhaust System - BMW M3 E93

£1,271.48


Bastuck exhaust system suitable for E93 Cabrio models only.

Twin 85mm exit tailpipes on each side of the car.

Price includes pair of rear silencers, link pipes and gaskets to suit.

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