Endura | ENDURA-ST3-5FAWD-01
Give your Seat Leon 5F Cupra 4WD the power it deserves with this Stage 3 Performance Kit . This package offers the most horsepower per pound and prepares your Cupra for extreme performance. Instead of squeezing the full potential of the original IS38 turbo, you replace it directly with the Endura IS38 Performance Turbo , designed for maximum flow, raw power, and reliability at higher outputs.
With upgrades to the intake, exhaust, fuel system, cooling, and ignition, all restrictions are addressed. The result? Explosive acceleration and an aggressive sound perfectly suited to a Stage 3 Cupra.
Unique: This kit includes 12 top upgrades in one complete package. No separate purchases, no hassles, no missing parts – everything is included for a complete Stage 3 build.
Note: Professional ECU and TCU tuning is mandatory for safe and maximum power output. Without a tuner, you won't be using the hardware to its full potential and risk engine damage. Need help finding a tuner? Feel free to contact us.
Compatibility
Seat Leon 5F Cupra 4WD
Not suitable for FWD models. For FWD models, see the Stage 3 Performance Kit .
Contents of the package
• Endura IS38 Performance Turbo
• Endura Turbo Muffler Delete
• Endura Turbo Inlet Elbow
• Endura Performance Air Intake 3.5″
• Endura Performance Downpipe 3.5″
• Endura Performance Intercooler
• Endura Performance LPFP Fuel Pump
• Endura HPFP Fuel Pump Upgrade Kit
• Endura Performance Ignition Coils
• NGK R7437-9 Iridium Racing Spark Plugs
• GFB DV+ T9381 Diverter Valve
• Integrated Engineering 5 Bar MAP Sensor Set
Advantages
• Fit guarantee: seamless fit, just like the original
• Complete Stage 3 kit – everything in one package
• Turbo upgrade included – up to 550 hp achievable
• Perfectly matched air, fuel and cooling upgrades
• No separate purchases or missing parts
• Most affordable Stage 3 kit on the market
• Ideal for heavy tuning and track days
Main components
Endura IS38 Performance Turbo:
Reinforced internals, dual ceramic bearings, and bolt-on mounting. Choice of 500 hp or 550 hp versions.
Endura Turbo Muffler Delete
For a more direct turbo response and a more audible turbo sound.
Endura Turbo Inlet Elbow
Increases airflow by 50%, up to 7 hp gain with stage 2 tuning.
Endura 3.5″ Air Intake
More air flow towards the turbo and up to 16 hp gain with stage 1 tuning.
Endura 3.5″ Downpipe
TIG-welded T304 stainless steel, available with sports cat or decat.
Endura Intercooler
101% larger volume than OEM, maximum cooling for 600+ hp setups.
Endura LPFP Fuel Pump
Delivers 525 LPH, supports powers above 550 hp and E85 fuel.
Endura HPFP Upgrade Kit
38% more flow, tested to 300 bar pressure, plug & play installation.
NGK R7437-9 Iridium Racing Spark Plugs
Heat level colder, ideal for engines above 500 hp.
GFB DV+ T9381 Diverter Valve
Better boost control and more durable than OEM.
Integrated Engineering 5 Bar MAP Sensorset
Necessary for higher turbo pressures on Stage 3 builds.
Frequently Asked Questions
Do I need tuning for this kit?
Yes, ECU and TCU tuning are required to safely utilize the power.
Does this kit also fit FWD models?
No, this package is exclusively for 4WD Cupras. For FWD models, see our Stage 2+ kit.
