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  1. Cosworth High Performance Head Gaskets for Subaru Impreza WRX STI 2008-2010
    $110.00
    Cosworth High Performance Head Gaskets engineered to seal in power under most demanding condits. Constructed from stainless steel with a folded stopper layer; each application features superior sealing compared to conventional multi layer steel gaskets. Additionally; Cosworth High Performance Head Gaskets manufactured from pre-coated cut stainless steel resulting in uniform coating distribution consistent shape.
    Key Features
    Individual cut layers of stainless steel with superior consistency compared to laser gaskets
    Pre-coated stainless steel with a 0.25 micron layer of nitrile rubber ensures consistent distribution of coating with no high or areas
    Manufacturing dimensional tolerance of 0.001
    Die manufacturing process ensures smooth edges; unlike laser gaskets
    Cosworth's gaskets feature a folded stopper layer additional torque around each cylinder. width of sealing area is specific each application thereby providing ultimate sealing properties
    Available in a range of thicknesses specific applications Learn More
  2. Cosworth High Performance Head Gaskets for Subaru Impreza WRX STI 2008-2010
    $122.00
    Cosworth High Performance Head Gaskets engineered to seal in power under most demanding condits. Constructed from stainless steel with a folded stopper layer; each application features superior sealing compared to conventional multi layer steel gaskets. Additionally; Cosworth High Performance Head Gaskets manufactured from pre-coated cut stainless steel resulting in uniform coating distribution consistent shape.
    Key Features
    Individual cut layers of stainless steel with superior consistency compared to laser gaskets
    Pre-coated stainless steel with a 0.25 micron layer of nitrile rubber ensures consistent distribution of coating with no high or areas
    Manufacturing dimensional tolerance of 0.001
    Die manufacturing process ensures smooth edges; unlike laser gaskets
    Cosworth's gaskets feature a folded stopper layer additional torque around each cylinder. width of sealing area is specific each application thereby providing ultimate sealing properties
    Available in a range of thicknesses specific applications Learn More
  3. Cosworth TGV Delete Kit for Subaru Impreza WRX STI 2007-2011
    $737.00
    The Cosworth Tumble Generating Valve (TGV) Delete is designed to maximize airflow to your engine by eliminating obstructions inherent to OEM intake ports. TGV deletes made of a fiber reinforced polymer to insulate cylinder head from intake tract; providing your engine with a cooler; denser charge of air. To further increase performance; Cosworth deletes port matched to CNC cylinder heads intake manifold. This product is a direct for 07+ Subaru due to top feed injector design due to a revision to upper bolt pattern of TGV; specifically moving center M6 holes. With manifold top feed injectors; TGV delete will work without issue on most WRX/STI applications. Learn More
  4. Cosworth High Flow Air Intake System for Subaru Impreza WRX STI 2002-2007
    $313.00
    Cosworths High Flow Intake Systems feature increased diameter; large smooth radius bent aluminum inlet tubes superior flow management coupled with a high flow filter maximum flow performance.
    Each includes an integrated heat shield designed to isolate air intake from engine heat delivering cold into engine superior power conversion. filter element is large; conical in shape engineered to dramatically reduce intake restriction resulting in additional power torque.
    Specs:
    Increase in performance by typically up to 15%
    Conical Cosworth blue filter with Cosworth embossed composite cap
    Lightweight aluminum mandrel shaped inlet tube maximum airflow
    Integrated heat shield cold isolation
    Hardware included easy; perfect fit
    Reusable filter
    Manufactured in USA Learn More
  5. Cosworth High Flow Air Intake System for Subaru Impreza WRX 2008-2010
    $313.00
    Cosworths High Flow Intake Systems feature increased diameter; large smooth radius bent aluminum inlet tubes superior flow management coupled with a high flow filter maximum flow performance.
    Each includes an integrated heat shield designed to isolate air intake from engine heat delivering cold into engine superior power conversion. filter element is large; conical in shape engineered to dramatically reduce intake restriction resulting in additional power torque.
    Specs:
    Increase in performance by typically up to 15%
    Conical Cosworth blue filter with Cosworth embossed composite cap
    Lightweight aluminum mandrel shaped inlet tube maximum airflow
    Integrated heat shield cold isolation
    Hardware included easy; perfect fit
    Reusable filter
    Manufactured in USA Learn More
  6. Cosworth High Flow Air Intake System for Subaru Impreza WRX STI 2008-2010
    $332.00
    Cosworths High Flow Intake Systems feature increased diameter; large smooth radius bent aluminum inlet tubes superior flow management coupled with a high flow filter maximum flow performance.
    Each includes an integrated heat shield designed to isolate air intake from engine heat delivering cold into engine superior power conversion. filter element is large; conical in shape engineered to dramatically reduce intake restriction resulting in additional power torque.
    Specs:
    Increase in performance by typically up to 15%
    Conical Cosworth blue filter with Cosworth embossed composite cap
    Lightweight aluminum mandrel shaped inlet tube maximum airflow
    Integrated heat shield cold isolation
    Hardware included easy; perfect fit
    Reusable filter
    Manufactured in USA Learn More
  7. Cosworth High Performance Camshafts for Subaru Impreza WRX STI 2008-2008
    $1,292.00
    Cosworth's been engineering camshafts nearly 50 years. That coupled with years of innovative multi valve cylinder head design ensures camshaft designs the most efficient in providing maximum usable power across widest power band. Each is ground from a billet finished using same procedures we in extreme level race engines. Cosworth camshafts the perfect compliment to CNC Ported Valve Cylinder heads. cams profiled to increase boost response thereby increasing engine torque power are fully compatible with CNC Ported Valve Cylinder Heads.
    Key Features
    Ground from billets
    Engineered tested profiles
    Broad power band
    Compatible with Cosworth ported Valve Cylinder Heads Learn More
  8. Cosworth High Volume Inlet Manifold for Subaru Impreza WRX STI 2004-2008
    $1,094.00
    The Cosworth Subaru High Volume Inlet Manifold is cast from aluminum featuring large tapered runners with radiused inlets improved flow. Plenum volume been substantially increased tuned power. Engineered easy installation is key to making power. Cosworth EJ257 plenum is designed use with 2004-2009 engines equipped with electronic throttle control. plenum is designed use with cable-actuated throttle body EJ20/25 applications. This plenum is designed to replace factory Subaru plenum in vehicles equipped with an aftermarket front-mounted intercooler (FMIC) kit. Throttle body position remains stock; ensuring fitment with brand FMIC kitsigned the stock throttle body intake manifold. 2008-2009 Subaru STIs Cosworth FMIC (p/n 20005378) is highly recommended.
    Features
    Substantially increased plenum volume
    Large; tapered runners with radius inlets
    Tuned plenum volume runner length/taper
    Over increase in flow
    Integral vacuum manifold connection of brake booster; boost gauge; sensor; boost controller; etc.
    Will work with standard or forward mount electronic throttle body configurations
    Stock throttle body location compatibility with most aftermarket FMIC kits Learn More
  9. Cosworth Stroker Kits for Subaru Impreza WRX 2002-2005
    $2,375.00
    Cosworth stroker kits the perfect to displacement; torque power to your engine. Each includes select matched components from parts list ensuring reliable performance.
    Mitsubishi 4B11 (Evolution X) 2.2L
    Cosworth Forged Pistons (86mm)
    Cosworth Fully Counterweighted Billet Crankshaft (94mm)
    Cosworth Forged Connecting Rods
    Cosworth'ston Rings
    Mitsubishi 4G63 (Evolution VII-IX) 2.2L
    Cosworth Forged Pistons (86mm)
    Cosworth Fully Counterweighted Billet Crankshaft
    (94mm)
    Forged Cosworth Connecting Rods
    Cosworth and Main Bearings
    Cosworth'ston Rings
    Subaru EJ25 2.6L
    Cosworth Forged Pistons (99.5mm)
    Cosworth Fully Counterweighted Billet Crankshaft
    (81mm)
    Forged Cosworth Connecting Rods
    Cosworth and Main Bearings
    Cosworth'ston Rings Learn More
  10. Cosworth Forged Pistons for Subaru Impreza WRX STI 2004-2008
    $215.00
    The piston is of most important components within engine. It be subjected to directional change up to times every second must withstand acceleration forces of 8500gs. Cosworth high performance forged pistons designed engineered to withstand this type of punishment still perform. Cosworth's pistons manufactured using same methods as Formula pistons include features such anti scuff skirt coating; ultra-strong pins; polished and patented antidetonation bands. Additionally; each application uses a unique forging to minimize weight ensure strongest possible piston design.
    Key Features
    Unique forgings each application
    Xylan anti scuff skirt coating
    Polished tops (reduces carbon build up relieves stress)
    Manufactured from proprietary alloy (CosAl 010)
    Ultra strong pin
    Patented anti-detonation bands Learn More

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