K03 Hybrid Turbo 1.8T 20V | Audi A3 Seat Leon VW Golf | 260 HP

Serious Performance Upgrade

Your 1.8T 20V deserves more than a stock K03. This JRspec street hybrid turbo retains the factory housing and bolt-on convenience while upgrading the rotating assembly and bearings. The result is a linear, responsive powerband that pulls harder to redline – without sacrificing low-end drivability or reliability.

Why This Turbo Wins

• Faster spool than stock K03/K03s
• Stronger mid-range torque for daily driving and spirited pulls
• Better top-end airflow – holds boost past 6,000 RPM
• OEM-style fitment – uses original oil/water lines and manifold
• Reinforced 360° thrust bearing for increased load tolerance
• Lightweight billet-style compressor wheel reduces rotating mass
• Strengthened actuator for stable boost control
• Plug & Play – no housing machining or custom parts

Internal Upgrades

• Larger, lightweight compressor wheel (hybrid spec)

• Sport 360° thrust bearing

• Reinforced journal bearings

• Upgraded actuator with stiffer spring

• Precision-balanced rotating assembly

• Factory housings machined for hybrid internals

• Oil-cooled core (standard 1.8T cooling layout)

• Plug-and-play fitment on transverse engines

Performance Characteristics

This hybrid spools incredibly quickly – matching stock response below 2,500 RPM. From 3,000 RPM onward, you’ll feel stronger mid-range shove compared to any factory K03. Unlike the stock turbo that runs out of breath after 5,500 RPM, this hybrid continues delivering usable boost to 6,500+ RPM. Perfect for spirited street driving, backroads, and light track use.

Technical Specification

Waga	5 kg
Product type	Complete Turbo
Power range	260HP

Vehicle Compatibility

Vehicle	Engine Code	Displacement
Audi A3 8L	—	—
Seat Ibiza 1.8T 20VT	—	—
Seat Leon Mk1	—	—
Seat Toledo Mk2	—	—
Skoda Octavia Mk1	—	—
VW Golf IV GTI	—	—

If unsure about compatibility, contact us with VIN number before ordering.

⟶ Warranty
Every upgraded turbocharger comes with a 12-month warranty with no mileage limit.

⟶ Lead Time & Shipping
We typically need around 2 weeks to complete and dispatch your upgraded unit. In more complex cases, allow up to 3 weeks (turbo upgrades demand precision, and our machining process is not something we rush).

Shipping costs and carriers:

• European Union: €25 via DPD
• United Kingdom: €49 via DHL
• Rest of the World: €99 via UPS

Average delivery time: 3–14 working days.

⟶ Full Insurance
Every parcel is fully insured from our workshop to your door.

⟶ Don't See Your Turbo Listed?
Our catalogue is just a fraction of what we can do. Contact us, our development team is constantly working on new models and we can likely build what you need.

⟶ Required Information at Checkout
To ensure your turbocharger is built correctly, please include the following when placing your order:

• Engine code
• Car model
• Stock power output
• VIN number

⟶ Which Option Is Right for You?

• Just Upgrade: You send us your existing turbocharger and we modify it. The unit must be genuine and free of cracks.
• Complete Turbo: We supply a fully built, ready-to-install turbocharger set. Nothing to send, just order and fit.

• Turbo Modification Service (Core Exchange Type)
  This listing is for the modification of your original turbocharger. You must send your turbocharger to us for upgrade.
• Turnaround Time: up to 14 working days after receiving your turbo.
• Ready-built turbocharger may be available separately after prior arrangement.
• If the electronic actuator/controller is damaged, repair/replacement is not included.
• If no old turbo is sent, a refundable core deposit applies.