{"id":2208,"date":"2026-04-29T18:10:59","date_gmt":"2026-04-29T16:10:59","guid":{"rendered":"https:\/\/performanceturbo.eu\/?post_type=product&#038;p=2208"},"modified":"2026-04-29T18:25:29","modified_gmt":"2026-04-29T16:25:29","slug":"vag-1-8t-k04-023-hybrid-turbo-s3-cupra-r-300-330-hp","status":"publish","type":"product","link":"https:\/\/performanceturbo.eu\/pl\/produkt\/vag-1-8t-k04-023-hybrid-turbo-s3-cupra-r-300-330-hp\/","title":{"rendered":"VAG 1.8T K04-023 Hybrid Turbo S3 Cupra R | 300-330 HP"},"content":{"rendered":"<h3><b>Serious Performance Upgrade<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">For the 1.8T enthusiast, the transition from Stage 2 to Stage 3 often requires expensive manifold changes. This Hybrid K04 solves that problem. It is engineered to maximize the flow potential of the original 225 HP engine architecture. By utilizing a larger turbine and a lightweight billet compressor wheel, we have shifted the efficiency map higher, allowing for sustained boost pressures that the factory unit simply cannot handle.<\/span><\/p>\n<h3><b>Why This Turbo Wins<\/b><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Ultra-fast spool for immediate throttle response<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Increased exhaust gas flow via a larger turbine shaft<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">300-330 HP capability (setup dependent)<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">True Plug &amp; Play installation\u2014no custom lines required<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Heavy-duty reinforced bearings for longevity<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Brand new high-quality cast iron housing<\/span><\/li>\n<\/ul>\n<h3><b>Internal Upgrades<\/b><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Enlarged Billet Compressor Wheel:<\/b><span style=\"font-weight: 400;\"> Lighter than OEM for reduced inertia and higher airflow.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Over-sized Turbine Shaft:<\/b><span style=\"font-weight: 400;\"> Reduces backpressure at high RPM.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Sport Reinforced Bearings:<\/b><span style=\"font-weight: 400;\"> Specifically designed to withstand the higher thrust loads of increased boost.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>New Cast Housing:<\/b><span style=\"font-weight: 400;\"> Eliminates the common cracking issues found in used factory housings.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Precision Balancing:<\/b><span style=\"font-weight: 400;\"> VSR balanced to ensure vibration-free operation at speeds exceeding 150,000 RPM.<\/span><\/li>\n<\/ul>\n<h3><b>Performance Characteristics<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">This turbocharger is designed for &#8220;area under the curve.&#8221; While many big-turbo builds suffer from late-onset boost, this K04 Hybrid retains the &#8220;snappy&#8221; feel of the original 1.8T while providing a massive surge in mid-range torque. Expect a strong pull from 3,000 RPM all the way to the redline, making it an ideal choice for technical tracks or fast road use where driveability is king.<\/span><\/p>\n<h3><b>Vehicle Compatibility<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Direct fit for transverse 1.8T 20V engines (210\/225 HP variants):<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Audi:<\/b><span style=\"font-weight: 400;\"> S3 (8L), TT (8N) 225HP<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Seat:<\/b><span style=\"font-weight: 400;\"> Leon Mk1 Cupra R<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Engine Codes:<\/b><span style=\"font-weight: 400;\"> BAM, AMK, APY, APX<\/span><\/li>\n<\/ul>\n<p><i><span style=\"font-weight: 400;\">Please verify fitment before ordering.<\/span><\/i><\/p>","protected":false},"excerpt":{"rendered":"<p><span style=\"font-weight: 400;\">The K04-300-HSP is the ultimate bolt-on solution for the legendary 1.8T 20V transverse engines. Built on a brand-new turbine housing, this hybrid unit replaces the stock K04-020\/022\/023 found in the S3 and Cupra R. Featuring an enlarged, lightweight CNC compressor wheel and a high-flow turbine shaft, it pushes the 1.8T platform to a potent 300-330 HP while maintaining the rapid spool-up characteristics required for spirited street and track driving.<\/span><\/p>","protected":false},"featured_media":2209,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_seopress_titles_title":"VAG 1.8T K04 Hybrid Turbo Upgrade | S3 Leon Cupra | 330 HP","_seopress_titles_desc":"High-performance K04 hybrid turbo for Audi S3 &amp; Leon Cupra 1.8T. CNC billet wheel, reinforced bearings, 330 HP potential. 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