Give your Seat Leon 5F Cupra 4WD the power it deserves with this Stage 3 performance Kit. This package offers the most horsepower per euro and prepares your Cupra for extreme performance. Instead of squeezing the maximum out 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 power outputs.
With upgrades to the Intake, exhaust, fuel system, cooling and ignition, all performance bottlenecks are addressed. The result? Explosive acceleration and an aggressive sound that perfectly suits a Stage 3 Cupra.
Unique: this kit contains 12 top upgrades in one complete package. No separate purchases, no doubts or missing parts – everything you need for a full Stage 3 build is included.
Please note: a professional ECU and TCU tune is mandatory to ensure safety and achieve maximum power. Without a tune, you won’t be making full use of the hardware and you risk engine damage. Need help finding a tuner? Feel free to get in touch.
Compatibility
• Seat Leon 5F Cupra 4WD
Not suitable for FWD models. For FWD, see the Stage 3 performance Kit.
Contents of the pack
• 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
Benefits
• Fitment guarantee: seamless fit, just like the
original• Complete Stage 3 kit – everything in one package•
turbo upgrade included – up to 550 pk achievable•
Perfectly matched air, fuel and cooling upgrades•
No separate purchases or missing parts•
Best-value Stage 3 kit on the market•
Ideal for heavy tuning and track days
Key components
Endura IS38 performance turbo
: Reinforced internals, dual ceramic bearings and bolt-on fitting. Choice of 500 pk or 550 pk variants.
Endura turbo muffler Delete
For a more direct turbo response and a more audible turbo sound.
Endura Turbo Inlet Elbow
Increases airflow by 50 per cent, delivering up to 7 pk of power gain with Stage 2 tuning.
Endura 3.5″ Air Intake
Provides more air to the turbo and up to 16 pk gain with Stage 1 tuning.
Endura 3.5″ Downpipe
TIG-welded T304 stainless steel, available with sports catalytic converter or decat.
Endura Intercooler
: 101% greater volume than OEM, maximum cooling for setups up to 600+ pk.
Endura LPFP fuel pump
Delivers 525 LPH, supports power outputs above 550 pk and E85 fuel.
Endura HPFP upgrade kit
: 38% more flow, tested up to 300 bar pressure, plug-and-play installation.
NGK R7437-9 Iridium Racing spark plugs
: cooler heat range, ideal for engines over 500 pk.
GFB DV+ T9381 diverter valve
: Better boost control and more durable than OEM.
Integrated Engineering 5 bar MAP sensor
set – Essential for higher turbo pressures in Stage 3 builds.
Frequently Asked Questions
Do I need tuning for this kit?
Yes, ECU and TCU tuning are mandatory to utilise the power safely.
Does this kit also fit FWD models?
No, this kit is exclusively for 4WD Cupras. For FWD models, please see our Stage 2+ kit.
