Muffler Sports Combines a less-restrictive replacement sports-model air cleaner with a low back-pressure sports muffler to improve intake and exhaust flow. Ideal as a first-time turbo upgrade. Improves high-rpm torque in non supercharged engines. Semi-Racing A competition-grade air cleaner with urethane sponge filter is combined with a low-back pressure muffler designed to enhance engine performance at high rpm. Ideal for large-displacement turbo engines. When using with a non-supercharged engine, proper tuning beforehand is a must. Racing Delivering even better intake efficiency than the semi-racing model, this racing air cleaner with a velocity stack is combined with a high- efficiency straight muffler designed for racing cars that normally operate in the high-rpm range. Suitable for tunings that maximize peak power. Reduces low-rpm torque and so requires proper consideration of engine characteristics, gear ratio, and other factors. Brakes Sports Brakes Contains carbon metallic brake pads for dependable stopping power, even during long-distance driving. With far more initial stopping power and fade resistance than ordinary brakes, these brakes are also suitable for endurance races. Brake fluid (DOT 5) is also changed. Brake Balance Controller Controls the anti-lock braking system to maintain the desired balance in braking power between the front and rear brakes. Strengthen the front to increase understeer for extra stability, or strengthen the rear to increase oversteer for better maneuverability. Remember that a too-strong rear brake balance increases the likelihood of spinout. Engine Performance Chip The most basic upgrade. Altering the Engine Management Program settings allows you to boost power by adjusting engine ignition timing, the air/fuel ratio, and other variables. For turbocharged vehicles, the air filter and muffler are also replaced, for a beginner's-level upgrade. Full-Engine Balancing An extensive upgrade that includes piston and connecting rod weight balancing, and a precision-balanced crankshaft. Reduces vibration and bearing loads, and allows higher engine speeds. The rev limiter is reset to take advantage of this. Port and Polish Polishes the interior of the intake ports, reducing air-flow resistance boosts engine power by what may seem a low degree, but is essential for normally aspirated and supercharged engines alike. NA Tune-up STAGE 1: Boosts the power of non-supercharged engines by adjusting the ignition and valve timing and by installing thinner head gaskets for a higher compression ratio. The exhaust manifold is also replaced. Peak power is enhanced without affectinglow-rpm torque. STAGE 2: Picks up where Stage 1 leaves off. Not only raises the compression ratio even further with high-compression pistons and head polishing, but also boots high- rpm output by replacing the cams, mounting reinforced valve springs, and Port and Polish. Although low-speed torque is diminished somewhat, the emphasis here is on boosting high-rpm power. The Engine Management Computer is also reset according to your vehicle specs. STAGE 3: Following up on Stage 2 enhancements, this upgrade completely overhauls the engine to enhance high-rpm performance. Higher- compression pistons, special high-lift racing cams with a large amount of valve overlap, heavy-duty competition valve sprins and connection rods, and engine block strengthening are all part of the package. The power band is shifted to the medium to high range to boost maximum horsepower. Displacement Increase There's no replacement for displacement. This upgrade raises cylinder displacement by increasing engine bore and stroke. Greater displacement generally boosts the engine's torque in all rpm ranges.  Drivetrain Transmissions Sports Transmission Replaces a normal transmission assembly with a transmission with closer gear ratios in all five gears. Prevents revs from dropping below the powerband when upshifting, and allows smoother downshifts. Ensures useful power ina  variety ofturns. Recommended for non- supercharged engines. Semi-racing Transmission These gear ratios are even closer than those of the Spors Close- Ratio Transmission. This gearbox is ideal for highly-tuned cars with a narrow powerband. Note that upshifting and downshifting will become more frequent. Because of time loss during shifting, this transmission may be counterproductive in cars with high-torque, wide-powerband engines. Full-racing Transmission For races that permit the replacement of all gears, including the final drive gear. This upgrade also makes it possible to fine-tune the gear ratios according to vehicle specs and circuit features. Clutch Heavy-Duty Single Plate Clutch Changes the clutch feeling during upshifting, so that upshifting feels more direct than with a normal clutch. Twin Plate Clutch This racing clutch kit features dual clutch places, ideal for high-torque, high- power vehicles. Reduces clutch slippage during upshifting, improving acceleration. Triple Plate Clutch Featuring three clutch places, this clutch kit boosts torque transmission and enhances the directness of the power. Ideal for highly-tuned cars. Limited-Slip Differential(For Professionals) 2-Way Limited-Slip A limited-slip differential that delivers the limited slip effect during both acceleration adn deceleration. Stabilizes the vehicle attitude during braking, thereby permitting even harder braking. Delivers powerful traction during acceleration, but clearly makes turning more difficult and so is suited to drivers who are skilled at turning. 1.5-Way Limited-Slip Reduces the limited-slip effect during deceleration while maintaining the full limited-slip effect during acceleration. This ensures powerful traction, and during braking, prevents excessive reduction in the force of the car attempting to turn. Free of quirkiness, this is a good all-around limited-slip unit. 1-Way Limited-Slip This limited-slip activates the limited-slip effect only during acceleration, and so is suitable for front wheel drive vehicles, which are difficult to turn under any conditions. The absence of the limited-slip effect during braking makes it possible to maximize turning power. However, the tendency of the vehicle to lose stability during braking should be noted. The shortcoming of this type of limited-slip is that vehicle characteristics during acceleration change greatly when the accelerator is released to decelerate. Full Customization This special rcing modification allows independent adjustment of the limited- slip effect during acceleration and deceleration. Although capable of greatly changing a car's performance, this modification requires careful adjustment as improper adjustment can destroy the car's balance. Flywheel Sports A lightweight flywheel made with chrome molybdenum steel. Let's the engine rev mroe quickly. Improves acceleration slightly, but with narrow-powerband engines,revs may drop below the powerband unless a close-ratio transmission is also used. Semi-Racing Even lighter than the sports type, this flywheel is especially designed for racing. Makes for a quick-revving engine. Improves acceleration slightly, but with narrow-powerband engines, revs may drop below the powerband even more easily unless a close-ratio transmission is also used. Racing A super-lightweight flywheel exclusively for racing. Makes for a quick-revving engine that also drops revs quickly. Improves acceleration and deceleration, but with narrow-powerband engines, revs may drop below the powerband unless a close- ratio transmission is also used and the driver can master the proper shifting technique. Driveshaft Carbon Driveshaft A lightweight driveshaft made with a carbon composite. Situated between the engine and the differential gear in front-engined, rear wheel drive or all wheel drive cars, the driveshaft is just as important as the flywheel for acceleration performance. Turbo Turbo Kits STAGE 1: A turbo kit that uses a compact turbocharger to generate high-rpm torque without sacrificing torque in the low to medium rance.Minimal turbo lag and high response combine to create an excellent balance suitable for all types of circuits. Metal gaskets, oil cooler, are inforced oil pump, and other high- durability parts are also installed. STAGE 2: A turbo kit that stresses high-rpm peak power and low to mid-range balance. Torque in the low range is somewhat low compared to Turbo Kit 1,but mid to high range power is boosted considerably. In addition to metal gaskets, oil cooler, a reinforced oil pump, and other high- durability parts, a fuel pump, injector, computer, and other turbo components are also installed. STAGE 3: A turbo kit that focuses on quarter-mile acceleration. The powerband shifts further into the high-rpm range than with Turbo it 2. For greater effectiveness, this turbo kit should be combined with a close-ratio transmission and other parts. The cam is also replaced with one designed for turbo characteristics. In addition to metal gaskets, oil cooler, a reinforced oil pump, and other high- durability parts, a fuel pump, injector, computer, and other turbo components are also installed. STAGE 4: An oversized, high-rpm, high-output turbo kit designed purely with maximum horsepower in mind. Suitable for maximum-speed contests, for instance. The cam is also replaced with one designed for turbo characteristics. Ina ddition to metal gaskets, oil cooler, a reinforced oil pump, and other high-durability parts, a special fuel pump, injector, computer, and other turbo components are also installed. Intercooler Sports This air-cooled intercooler cools the hot intake air after it is pressurized by the turbocharger. By lowering the intake air temperature, air density is increased, allowing for more fuel to be used and boosting power. An essential part for a high-performance turbo engine. Racing Boosts the power of a supercharged engine by lowering the intake air temperature. The larger capacity increases the temperature-reducing capabilities but slightly lowers engine response. This high-capacity intercooler is a suitable upgrade for engines with a high maximum supercharging pressure. Suspension Suspension Kits Sports An all-purpose, beginner-friendly suspension kit that covers all types of driving, from street to circuit. Both front and rear shock absorbers are adjustable to one of 10 damping force levels. Camber angle is also adjustable. Clearnace is lowered approximately 1 inch in the front and back. Two-way low- pressure gas shock absorbers (adjustable to 10 levels). Semi-Racing A ride height-altering suspension kit for intermediate drivers. Spring rate and the shock absorber damping force are harder than with normal sports suspension. Front and rear ride height is adjustable in 1-millimeter increments. Damping force is adjustable to one of 10 levels, and camber angle is also adjustable. Single high-pressure gas shock absorbers. Full Customization(For Professionals) Enables tuning of all suspension parts.Adjusts shock absorbers, replaces springs with ones with different spring rates, and replaces the stabilizar (anti-roll bar), which controls the vehicle's lateral roll stiffness. Wheel camber can be changed, and toe-in is also adjustable. Shock absorber compression (bound) and extension (rebound)are independently adjustable to one of 10 levels. Tires Sports Tires Sports tires are for paved-road driving and have a greater grip than normal tires. Mounting high-performance tires enhances a car's cornering, acceleration, and braking performance and is the most effective upgrade. Purchasing tiresentitles you to subsequent tire services for as long as you own those tires. Front and rear tires must be purchased together. Racing Slick Tires Racing Hard A set of front and rear slick tires for racing on paved surfaces. These tires have low grip but are made with a durable compund that ensures consisten grip over the long term. Because these tires warm up slowly, use proper caution during the first 2 laps on a racing course. Racing Medium A set of front and rear slick tires for racing on paved surfaces and made of a special compund that provides a proper balance between grip and durability. Tires heat to the appropriate temperature after 1 lap to ensure high grip. Thee tires are not as durable as hard tires butlast longer. * Racing Soft A set of front and rear slick tires for racing on paved surfaces and made of a special compund that provides excellent grip, although atthe expense of some durability. Ideal for time trials, for instance.After only one-half lap, these tires heat sufficiently to provide excellent grip. Limited durability requires mroe-frequent tire replacement. Racing Super Soft A set of front and rear slick tires for racing on paved surfaces. These tires, which cast durability to the win to provide maximum grip, requre only several turns to warm up to the point of maximum grip. Caution is required as loss of grip due to wear can occur suddenly. Dirt Racing Tires Dirt racing tires, which must be mounted on all 4 wheels for racing on dirt courses. These tires are designed to ensure vehicle controllability on slippery gravel and other unpaved surfaces. Dirt racing tires are available only for certain vehicle types. Simulation Tires(For Professionals) A tire that even more closely approximates the characteristic of actual, real-life tires. These tires make driving with the game controller extremely difficult and so provide a virtual experience of real-life driving (as opposed to video-game driving), requiring early braking, careful steering, and delicate accelerator manipulation. This is a set of front and rear tires for paved surfaces.  Others Weight Reduction STAGE 1: Lightens the vehicle by removing unnecessary parts and relacing others with parts made of lightweight-material. The numerous advantages of a lighter car include enchanced acceleration performance, improved cornering and braking, and better tire durability. STAGE 2: Lightens the vehicle more by removing more parts and/or replacing more with lighter materials. STAGE 3: Takes Stage 2 lightening a step further. Racing Car Modification Upgrades the car's materials and shape, changes the coloring, and adds aerodynamic parts, which adds downforce to the vehicle. Adjusting the front and rear downforce makes it possible to change the vehicle balance in the high-speed range. For Professionals Yaw Control System: This component changes the setting of the Yaw Control System, which generates rotational moment in the vehicle by controlling the distribution of torque between the left and ride drive wheels. Raising the setting creates rotational moment during cornering, making turning easier. Note that too high a setting increases the likelihood of tire spinning. Active Stability Controller: Prevents spinning due to oversteering by actively controlling the braking power of all four wheels. A high setting stabilizes the car but makes cornering more difficult. A low setting permits greater freedom of movement in cornering but diminishes the spin-prevention effectiveness of the device. TCS Controller: For adjusting the setting of the TCS (Traction Control System), which prevents wheelspin by automatically releasing the accelerator when a drive wheel is detected to be spinning. Changing the traction control setting changes car's handling. A high setting stabilizes the car by eliminating wheelspin, but may dimish acceleration. With powerful rear wheel drive, a low setting can result in oversteering when the accelerator is being pressed.

Parts