Italian Tuning - Offers a variety of parts and equipment for street and racing applications. Includes product catalog. [English, Italian] Ontronic Engine Management Systems - Manufacturer of programmable electronic engine management systems for racing applications. Includes specifications, manuals and software. [English, German, French] Dan's Performance Parts - High Performance parts for your Sand Car, Buggy, Performance Boat, ATV and PWC. Rebco Performance Products - Specializing in electronic wheel scale systems, dashboard instrumentation, chassis setup, and pit equipment. Includes tech tips and classifieds. Spyder Engineering - Lotus compatible parts. Ryan Falconer Racing Engines, Inc. - Racing engines for every form of auto racing from off-road trucks, to high endurance Rally cars, to sports car racing. Also for marine and aircraft applications. Shop talk forum. Pace Performance Parts - Offers factory crate engines, transmissions, performance products and books. Includes technical specifications and product catalogue. Pro-Gram Engineering Corp - Manufacturer of race engine speciality parts. Steel billet main caps, main cap support straps and stud kits. Rear main oil seals, and carburetor spacers. Hypertech - Offers tuning modules, chips, pulleys and related equipment for most vehicles. Moroso Products - Manufacturer and supplier of automotive equipment for racing and street applications. Race Car Supply - Provides products, services, and information on Formula Vee and Pro Formula Vee racing. Includes contact information and related links. DFUSER - Offers diesel performance parts. Also includes a photo gallery. Wilson Manifolds - Manufacturer of performance parts and kits, with focus on nitrous injection systems. Includes product overview, company profile and catalogue. BoostController - Offers gauges, valves, pipes, spark plug wires and intercooler assemblies. Taylor Vertex - Manufacturer of high performance racing ignition wire, battery cable, primary wire, magnetos and accessories. Precision Industries - Manufactures high performance torque converters and supplies transmission components for Ford, GM, Dodge and Import vehicles. Technical information is provided online. Turner Motorsport - Specialist in high performance BMW parts and accessories, as well as standard replacement parts. Online catalog with photos, prices and online ordering. Jet Performance Products - Offers fuel and electronic systems, power chips and transmissions. Includes product catalogue. White Racing and Marine - Offering plug and play electronic fuel injection kits for most car models from 1985 to 2002, as well as tuning systems. HKS Performance Products - Offers engine, suspension and drivetrain components. Includes company profile and product catalogue. LG Motorsports - Offers tuning equipment, suspension components and cold air induction systems. Includes technical tips and product catalog. Lingenfelter - Designs and sells performance automotive and marine engines and components. Includes product catalogue. Performance Tuning - Performance and aftermarket auto parts. Marren - Offers fuel injection parts and equipment for racing and aftermarket applications. Includes product catalog and company profile. Outlaw Performance - Manufacturer of chassis and fiberglass bodies, street rod accessories, parts, bodies suspension components, and gas tanks. Weber Carburetors - Distributor of carburetors, conversion kits and fuel systems. Includes catalogue and pricing. Performance Suspension Technology - High technology suspension components and replacement parts. Powertech - Porsche heavy duty turbo sump pumps, crankshaft double pulleys for street or track use and aluminum clutch conversion packages. High performance engines, transmissions, brakes and suspension. Roll bars and cages. Pro-Systems - Builds and modifies carburetors. Also conversion to alcohol. NASCAR approved race carburetors plus circle, track, drag and street. Fuel pumps, regulators and logs. Century Performance Center - Offers automotive products and accessories. Includes product catalogue, bulletin board and technical articles. Trick Flow - Manufacturer of high performance cylinder heads, camshafts, pistons and intake manifolds. Technical data and installation instructions online. Lone Star Performance - Offers a wide range of performance products. Includes catalogue and company profile. Magnecor Race Wires - Manufacturer of spark plug wires, ignition cables and ignition leads for street and race applications. Includes technical information. Pro-Max Performance - Specialists in exhaust, from stock replacement to total performance for imports, domestic, RVs and race cars. Also radiators and brakes. Technical data and photos online for many manufacturers represented. Schneider Racing Cams - Manufacturer of camshafts and valve train components. Custom grinds from mild to wild. Paragon Performance - High performance automotive stainless steel braided hose, aluminum adapters and fittings plus hose assemblies lined with Teflon. Technical information and prices online. Speedway Engineering - Manufactures quick-change rear ends, full floating rear ends based on 9" Ford SVO housings, anti-sway bars, front hubs, drive flanges, axles and other parts. Photo catalog online. Longacre Racing Products - Manufacturer of racing related products. Includes product catalogue and company profile. Winters Performance Products - Manufacturer of high performance auto parts including rear ends, hubs, differentials, axles, transmissions, shifters and gears. RPS Performance Products - Manufacturer of high performance clutches and clutch systems for street and racing vehicles. Technical information and articles online. RAM Clutches - Manufacturer of performance clutch systems. Flywheels, pressure plates and clutch disks. Unorthodox Racing, Inc. - Manufacturer of performance parts for imports and domestics including underdrive pulleys, adjustable cam sprockets, aluminum flywheels, HD Kevlar clutches and phenolic spacers. Price list online. U.S. Radiator - Manufacturer of radiators for the restoration and high performance marketplace. Specializing in reproduction radiators for the muscle car era; also street rods and customs. Distributors of SPAL electric cooling fans. Steeda Autosports - Airfilter systems, exhaust systems, superchargers, suspension, and rims for most Ford vehicles. West Coast Differentials - Ring and pinion gears, lockers and axle parts. Rear end and differential parts for 4 wheel, off road or performance vehicles. Melling - Manufacturer of oil pumps, kits and components. Includes product catalogue, technical information and tips. RaZor Performance Products - Manufacturer of dry sump oiling systems. Racing Performance Works - Australian company specialising in the production of high performance Mitsubishi, Hyundai and Chrysler motors to suit street, drag, four wheel driving and rallying. Road Race Engineering - Performance automotive aftermarket services and accessories. Complete fabrication services for roadracing, autocross, pro rally and high performance street applications. Specialists in Mazda 323 and Mitsubishi. Pankl Racing Systems - Manufacturer of engine components and drivetrain systems. Materials used are aluminium, titanium, MMC and carbon composite as well as magnesium and ultra high strength steel. Split Second - Manufactures instrumentation and calibration products. Split Second products are widely used to add turbos and superchargers to naturally aspirated engines. PowerMist Racing Fuels - Manufacturer of racing fuels, methanols, lubricants, and performance additives. Nology Engineering - Manufacturer of ignition systems and related components for street and emission sensitive applications. Includes product catalogue. Need For Speed - Offers a range of aftermarket performance car parts. Includes product catalogue. The Winner's Circle - Distributor of Austin Healey Sprite and MG Midget restoration and competition parts. Classified ads. Perma-Cool - Manufacturer of automotive oil coolers, electric and mechanical cooling fans and components, fan clutches, oil and fuel filtering systems, oil filter adapters, and remote filter brackets. Ross Racing Pistons - Manufacturer of stock and custom pistons. Different types of racing require different piston designs. Custom pistons are made to the customer's specifications. Total Seal Piston Rings - Manufacturer of piston rings for racing and street engines. Total Seal Engine Development Center produces custom engines for street, racing and marine uses. Sube Sports - Driving suits, gloves, shoes, pit crew accessories, seats, harnesses, safety equipment, PIAA lights and light accessories plus more products for racers. Overseas Auto - Performance parts and accessories for import and domestic sports cars, trucks, SUV's. Warehouses in both the U.S. and Canada. 4x4 Tuff - Offers parts and accessories including engines, rails and chassis. TurboXS - Offers blowoff valves, boost controllers and related equipment for turbocharged engines. Includes product overview and company profile. Car Shop - Offers parts and accessories for racing, street rod and other specialized applications from major manufacturers. Forced Performance - Offers custom turbochargers for racing applications. Includes product overview and company profile. OnTrack Digital - Offers vehicle performance testing tools and software. Includes technical data and product overview. Shark Racing - Supplier of aftermarket parts for Korean and Japanese cars from strut bars to body kits and spoilers. Includes product overview. Wizard of NOS - Nitrous oxide injection systems. Make own products and specialise in performance modifications. SD Concept Engineering, Inc. - Centrifugal supercharger kits and intercoolers. Technical information and system prices online. Tokyo Express - Provide performance and tuning parts for Honda, Mitsubishi, Subaru, Nissan, Mazda, and Toyota. RR-Racing - Performance parts and accessories for Ford Probe GT, Mazda MX6, MX3, and 626. Nitrous Direct - Offers a line of nitrous oxide kits, supplies and parts. Includes detailed technical information and a FAQ. Think Automotive Ltd. - UK manufacturer of Mocal oil coolers and components. Laminova water to oil coolers. Remote filter heads that enable relocation of the oil filter. Transmission oil coolers. Competition Products - Offers parts and accessories for engine builders and car enthusiasts. Includes product overview and company profile. Green Filter - Manufacturer and supplier of cotton air filters for racing applications. Includes product catalogue and company profile. PerformanceParts.com - Supplier of performance automotive parts for foreign and domestic cars. Includes part search by keyword, catalogue and company profile. BHP Plus - Offers tuning systems and intake filters for diesel engines. Includes product overview and company profile. Eng-Tek - Offers tuning modules for diesel engines, exhaust systems and related accessories. Includes product catalogue. Lethal Performance - Offers aftermarket parts and accessories for muscle cars. Includes product overview and company profile. Nippon Power - Offers performance accessories for the sport compact market. Includes product catalogue. Forge Motorsport - Offers alloy tuning components for chassis and engines. Includes dealer list and product catalogue. SuperchargersOnline.com - Retailer of superchargers and related accessories for all major brands. Includes news, technical data and product catalog. Hawkins Speed Shop - Retailer of performance racing parts and related accessories. Includes product catalog. USDieselChips.com - Offers power performance chips for diesel engines. Edo Performance - Retailer of performance parts and related instrumentation. Includes product catalog. New Level Motorsports - Retailer of performance parts and accessories. Includes product catalog. Treadstone Performance - Retailer of induction and heat exchanger products. Includes product catalog. Performance Centre - Retailer of performance products. Includes company profile and product catalogue. Performance Curve - Reseller of car parts and accessories. Includes product catalog and company profile. Go Fast Bits - Manufacturer of aftermarket parts for supercharged engines. Includes product catalog and company profile. Amber Performance - Offers car parts and accessories for tuning. Includes product catalog and company profile. Silicone Intake Systems - Offers intercoolers and piping systems for turbo cars. Includes product catalog and company profile. Overspeed Motorsports - Offers a variety of components and accessories for street and racing applications. Includes product catalog and company profile. Ross Machine Racing - Offers engine air intake and fuel delivery systems. Includes product catalog, gallery and project overview. Turbo Wholesale Distribution - Distributor of turbo parts and related systems. Includes product catalog. Panhandle Performance - Offers machining and dynamometer services, as well as parts and accessories. Includes product catalog and company profile. GlowShift Gauges - Offers racing gauges in several color and tinted. Includes product catalog. Phethean Racing Products - Specializes in speed equipment. Includes product catalog and company profile. NFC Performance - Offers parts and accessories including tuning kits and wheels. World's Beyond Performance - Offers parts and kits for a wide range of cars. Includes product catalogue. Guaranteed Auto Parts - Offers diesel performance parts and kits. Includes product catalog. Mach 1 Performance - Offers parts, accessories and kits for customized and performance vehicles. Includes product catalog. Pro Civic - Offering aftermarket performance parts and body kits for the Honda Civic. Also features related news and articles. Custom Cars Central - Offers a wide range of performance parts. Includes interactive catalog to find vehicle specific applications. Upscale Automotive - Offers a variety of parts for vehicles. Includes product catalog and gallery. JPerformance - Retailer of performance car parts and accessories. Includes product catalog. Xenocron Tuning Solutions - Offers a variety of components and accessories for street and racing applications. Includes product catalog and company profile. Sound Performance - Store and manufacturing company, fabricates turbo kits. Includes project overview, product catalogue and forums. Juiced Hybrid - Source for hybrid performance car parts and accessories, with a green focus. Modern Automotive Performance - Offers performance products for several modern platforms with a focus on forced induction. Includes product catalog, detailed product information and company profile. Speed Demon Performance - Offers a range of aftermarket parts and accessories for imports and U.S. domestic cars and trucks. Includes product catalog. Prosport Performance - Offers gauges and related tuning accessories. Includes product catalog. Silicone Stop - Offers high temperature silicone couplers and related accessories. Includes product catalog, FAQs and reviews. Carbon Mods - Manufacturers and retailers of carbon fibre styling and tuning components for motorsport and modified cars. Injected Performance - Retailer of aftermarket parts for import and U.S. domestic sports cars. Includes part search and discussion blog. Slick Auto - Offers U.S. domestic and import performance parts for track and street, including bucket racing seats and carbon fiber aerodynamic components. Includes product catalog. AutoCityImports - Aftermarket performance parts and exterior aero parts for sport compact cars. Includes product catalog, technical articles and customer reviews. DTUK Diesel Tuning UK - Supplier of plug and play digital diesel tuning boxes. Includes technical reviews, FAQs and forums. Devilsown - Manufacturer of water alcohol injection parts for turbo engines. Includes technical data and forum. ERZ Performance - Dealer of tuning and specialized products for dragsters, cars and trucks. Includes product catalog sorted by car. Spider Performance Automotive - Selling high performance auto and truck parts. AEM Induction Systems - Manufacturer of performance cold air intakes for the automotive aftermarket. Includes product catalog and product sales. Advanced Flow Engineering - Manufacturer of high flow and efficiency air filters and intake systems for the automotive industry. Includes FAQs and technical data. AET Turbos Motorsport - Supplier of turbocharger, blow off valves and related accessories for the motorsport industry. Auto Specialties Performance Inc. - Manufacturer of pulleys for turbochargers. Includes technical instructions and company profile. AFCO Performance Group - Shocks for racing and street rods. Technical information online including calculators. MRT Direct - Specializing in aftermarket performance parts, exhuast, suspension and appearance accessories. Includes product overview. Outperformance Shop - Offers parts and accessories for a wide range of vehicles. Featuring popular manufacturers in the automotive performance industry. TurboKits.com - Offers turbo kits for a variety of makes and models. Southern Electronics - Wholesale and retail instrument sales and repair. Analog, digital and motorcycle repair. Top Gear Sales Ltd. - Sells a variety of snow chains, roof bars, tuning tools, and air horns. Airaid - Offers air intake systems, spacers, tubes and filters. Includes product overview and company profile.