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Product category- Select -Exhaust ValvesIntake ValvesValve Spring KitsConical Valve SpringPistonsConnecting RodsRetainersValve Stem SealValve LocksPiston RingsPiston Wrist PinPiston CirclipsLash capsEngineBMWS55 TurboB38B15B48B58B30M20M20 B25M42M50M52M54M70N53N54 TurboN55 TurboS14S38S42S50S50B30 Euro VersionS50B32 Euro VersionS52S54B32S55 TurboS63B44S65 V8S85 V10Searchx+
Exhaust Valvesview productsIntake Valvesview productsValve Spring Kitsview productsConical Valve Springview productsPistonsview productsConnecting Rodsview productsRetainersview productsValve Stem Sealview productsValve Locksview productsPiston Ringsview productsPiston Wrist Pinview productsPiston Circlipsview productsLash capsview productsSUPERTECH CONFIGURATORHELP ME CHOOSE✕FIND YOUR PERFECT BUILDAnswer 3 quick questions about your build goals and we\'ll recommend the exact Supertech parts for your .Takes about 30 seconds · You can adjust any selection afterward1 BUILD PURPOSE2 HP DELIVERY3 CAM PROFILESTART GUIDED SETUPQuestion 1 of 3WHAT'S YOUR PRIMARY BUILD PURPOSE?This helps us match the right valve and sealing specifications to your use case.🏁Street & Track DaysMost PopularOccasional track use, daily-driven or weekend car🏆High Performance RacingRegular competitive events, sustained high-RPM operation⚡Drag / Time Attack / Max PerformanceHigh OutputMaximum performance, extreme heat cycles, high-output builds BackSelect an option to continueQuestion 2 of 3How is horsepower delivered?Forced induction creates significantly higher heat and pressure loads on valvetrain components.🔵Naturally AspiratedStandardNo turbo or supercharger — standard intake air🔥Forced InductionTurbocharged or supercharged — elevated heat and pressure BackSelect an option to continueQuestion 3 of 3What cam profile are you running?Higher-lift cams increase valve spring demands and affect valve guide wear rates.📐StockRecommendedFactory camshaft profile — standard lift and duration📈Mild Profile / LiftSlightly increased lift and duration for improved flow🚀High Profile / LiftAggressive cam profile for maximum airflow and power BackSelect an option to continueRecommended ConfigurationPerformance SpecStreet & Track Day Build The ideal all-rounder for high-performance street use with occasional track days. Naturally aspirated with a stock cam — triple groove stainless valves provide excellent retention without over-engineering.Key Selections Triple groove stainless valves — best street/track balance Dual valve spring kit with steel retainers Stock cam profile — factory-spec valve spring rate H-beam connecting rods for high-RPM durability Why Performance Spec? Street & Track Days + naturally aspirated + stock cam is the only combination that fits within Performance Spec tolerances — no additional heat or spring-rate demands require an upgrade. Restart Apply performance SpecRecommended ConfigurationExtreme SpecExtreme Spec Build Maximum-output configuration with full Inconel valvetrain, beryllium copper guides, and high-lift titanium spring kit. Built for forced induction with a high-lift cam — drag, time attack, or any application demanding absolute reliability under extreme conditions.Key Selections Full Inconel triple groove valvetrain — maximum heat resistance High-lift titanium retainer spring kit for aggressive cam profiles Forced induction spec — PTFE extreme stem seals Billet H-beam connecting rods and fire-ring MLS head gasket Why Extreme Spec? Forced induction combined with a high-lift cam creates thermal and mechanical loads that exceed Race Spec limits — Extreme Spec's full Inconel valvetrain and beryllium copper guides are required. Restart Apply extreme SpecRecommended ConfigurationRace SpecRace Spec Build Configured for competitive performance with Inconel exhaust valves and titanium retainers. Optimised for naturally aspirated with a stock cam — the right spec for sustained high-RPM track operation.Key Selections Triple groove stainless intake with Inconel exhaust for track durability Dual valve spring kit with titanium retainers Stock cam profile — optimised spring rate I-beam connecting rods for sustained high-RPM operation Why Race Spec? High Performance Racing demands Race Spec's Inconel exhaust valves and titanium retainer spring kit for sustained competitive operation beyond Performance Spec limits. Restart Apply race Spec
