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Monday 09:00 - 19:00 Tuesday 09:00 - 19:00 Wednesday 09:00 - 19:00 Thursday 09:00 - 19:00 Friday 09:00 - 19:00 Saturday 09:00 - 16:00

Smart HarD TuNinG GR

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Greece
Thessaloníki
Smart HarD TuNinG GR

Smart HarD TuNinG 🇬🇷

High Performance Tuning Parts
Tuning Projects :Smart Fortwo 451 & 453

“THE POWER OF A 3-CYLINDER ENGINE”

30/07/2026

🔥 STAGE 4 Plus 🚀 ➖ Smart ForTwo 451

United Kingdom 🇬🇧 Tuning Project
by S.H.T Performance 🇬🇷

▪️ Mitsubishi 3B21 Forged Engine
▪️ 999cc • 3-Cylinder • 12-Valve
📈 230 HP | Low Boost – 1.35 bar (constant) 🌪️
📈 260 HP | High Boost – 1.80 bar (constant) 🌪️
⛽ RON 100 Fuel
🚿 Methanol Injection Kit

💯💪 Another Stage 4 Plus Engine Package is ready to leave our workshop.

✅Designed, manufactured and assembled at
Smart HarD TuNinG, every component is prepared to meet our engineering standards before its journey to the United Kingdom.

✅Each Engine Package is individually built, precision measured and carefully inspected before shipment.

✅Following final assembly, quality control and inspection, this Stage 4 Plus Engine Package is now ready for delivery.

👉We sincerely thank Lawrie Sharp for his continued trust in Smart HarD TuNinG. 👏

🌎🛫📦 Worldwide Shipping

Smart HarD TuNinG 🇬🇷

Check our website for additional information about your cars: 🖥 smart-hard-tuning.com

✉️ [email protected]
📲WhatsApp Number +30 6987987065
📞Telephone Number +30 6987987065 / +2310677810

07/07/2026

👉🚦11.3 seconds was only the beginning.
The Silver Drag Car is back. 🏁
The 10-second zone is loading… 🚀🔥

😘What will be revealed on this car over the coming weeks will be something truly extraordinary.
Stay tuned… The best is yet to come. 👊⚙️

01/07/2026

🚀 STAGE 5 PROJECT 🦾
🇩🇪 GERMANY

Smart Fortwo 451 Turbo Engine | 999cc | 3-Cylinder
👉 Another complete Stage 5 Smart Fortwo 451 project has been prepared, inspected and finalized by S*T Performance 🇬🇷 and is now leaving our workshop for Germany.

Thank you IK KFZ Werkstatt GmbH for your trust.👏
________________________________________

🚀 Complete Engine Build by S*T Performance 🇬🇷

▪️Engine Block
✅ Open Deck to Full Closed Deck Conversion
✅ Cylinder Boring for Ø72.25 mm Pistons
✅ CP-Carrillo Forged Pistons Ø72.25 mm
✅ Forged Connecting Rods
✅ Tri-Metal Performance Connecting Rod Bearings
✅ Complete Engine Bearing Set
✅ Complete Engine Gasket & Seal Kit
✅ Complete New Timing System
⸻
▪️Cylinder Head
✅ Full CNC Ported Cylinder Head
✅ Stage 2 Reprofiled Camshaft
✅ Oversized Ferrea Intake Valves
✅ Oversized Ferrea Exhaust Valves
✅ 12 Beryllium Valve Seats
✅ Bronze Valve Guides
✅ Performance Valve Stem Seals
✅ High-Temperature Coated Head Gasket
✅ Optimized Combustion Chamber Design
✅ Cat Cams Performance Valve Springs
✅ ARP Head Stud Kit
⸻
▪️Performance Tuning Parts
✅ Performance Decat Exhaust System Ø54–51 mm
✅ Performance Exhaust Manifold
✅ Performance Clutch Kit (3000951038RS)
✅ Lightweight Flywheel
✅ Lightweight Crank Pulley (295 g)
✅ Performance Intercooler
✅ Custom Racing Air Intake – Version 2
✅ 450 cc High-Flow Fuel Injectors
✅ Performance Ignition Coils
✅ NGK Iridium Spark Plugs
✅ 45 mm Throttle Body

✅ Custom Stage 5 Hybrid Turbo
• Anti-Surge Compressor Housing
• Custom Billet 7+7 Compressor Wheel (40.5 / 52 mm) & Point Milling Drawing
• 9-Blade Turbine Wheel (38 / 43 mm)
• Turbosmart Performance Wastegate

✅ Remap ECU Engine 📈
✅ Remap TCU Transmission (7000 RPM) ⚙️
✅ Performance Aluminum Radiator
✅ Hardrace Performance Engine Mount
✅ Torsen Performance Differential
✅ Ceramic-Coated Intake Manifold
✅ Complete Methanol Injection System
✅ AEM Wideband AFR Controller
✅ iBoost Full Version with CAN Bus

🔝 Built with precision. Engineered for performance.

🌐 Check our website for more information:
smart-hard-tuning.com
✉️ [email protected]
📲 WhatsApp: +30 6987987065
📞 Tel: +30 6987987065 | +30 2310677810

22/06/2026

🚀Smart ForTwo 451 Turbo Engine
STAGE 3 - 185HP & 245NM Torque

👉Another Smart 451 Turbo has arrived from Bulgaria 🇧🇬 at Smart HarD TuNinG GR 🇬🇷 for a complete Stage 3 performance build .

ℹ️STAGE 3 Project & Forged Engine 🛠️🦾
▪️3B21 Mitsubishi Forged Engine Block
▪️Cylinder Head Refresh with New Gaskets, Seals & Service Components
▪️Stage 3 Performance Calibration & Final ECU Tuning

Target Output:
📈🔥 185 HP
📈🔥 245 Nm Torque
⛽️ Ron 100
🚘 Daily car
🌪️💨High Boost 1.35 Constant Pressure

Despite the high ambient temperatures (34°C), running on 100 RON pump fuel only and without any methanol injection, the engine is performing flawlessly with drivability and smoothness that would make even a factory Smart 451 jealous.

Knock correction remains exceptionally low at around -1.5° across all 3 cylinders, while fuel trims stay within - + 4% all the way to the rev limiter, demonstrating a mechanically healthy and properly calibrated engine package.

▪️ COMPLETE BUILD SPECIFICATION & PARTS LIST
⏺️Forged Engine Block Parts & Head Engine Repair
✅CP Carrillo Forged Pistons 72.25mm
✅VPR Forged Rods
✅Cat Cams Springs Valve
✅Bronze + Cast Iron Valves Guides 6+6
✅Full Set Bearing- Full Set Timing Kit Engine
✅Valves TRW
✅Head Engine Performance Thermal-Coated
✅ARP Head Studs Kit

⏺️STAGE 3 Tuning Parts
✅Hybrid Turbo TD025 STAGE 3
✅Wastegate Turbosmart
✅Intercooler Performance
✅Throttle Body 45mm
✅Clutch Kit Performance 3000951038RS
✅Pulley Crankshaft Lightweight 295g
✅Flywheel Lightweight 3.8kg
✅Bigger Injectors 450cc
✅Spark Plug Iridium NGK
✅Performance Hardrace Engine Mount
✅Full set Engine Mount (left-Right)
✅I boost Control
✅Aem Wideband
✅Remap Ecu Engine 📈
✅Remap TCU ⚙️

⏺️AMSOIL Full kit & VP Performance Coolant
✅Break -in oil
✅5W-40 Full Synthetic
✅75w-90 Severe Gear
✅Oil Filter Amsoil
✅VP Performance Coolant STAY-FROSTY

Thank you for your trust Kanata Gospodinov 👏

We wish you many and safe kilometers with your new Stage 3 Smart 451. 🚀

Another Smart 451 turbo project successfully completed. ✅
Trusted by Smart owners across Europe. 🚀

▪️S.H.T Performance 🇬🇷▪️

10/06/2026

🚀🇬🇧STAGE 4Plus Tuning Project
🔬Smart ForTwo 451

▪️3B21 Mitsubishi Turbo Engine
▪️3 Cylinder-999cc-12Valves
➡️Stage 4Plus 260HP Tuning Project
➡️Fuel ⛽️ Ron 100 & Methanol Kit 🚿

👉☝️Another international 🌎 project completed by Smart HarD TuNinG 🇬🇷

This Smart Fortwo 451 Turbo from the UK 🇬🇧 returned to our workshop after previously receiving our Stage 3 Turbo Engine Package.
Following a full season of use, the owner decided to take the next step and upgrade to our complete Stage 4Plus specification.

This project is another example of the advanced Mitsubishi 3B21 performance packages developed and assembled by Smart HarD TuNinG🇬🇷

🦍Presentation STAGE 4 Plus 💎
➡️ENGINE BLOCK▪️
Full forged engine build
✅Closed-deck block conversion
✅CP Forged Pistons 72.25mm
✅Forged Connecting Rods
✅Tri-Metal Performance Bearings
✅Precision Crankshaft Balancing

➡️CYLINDER HEAD ▪️– STAGE 4Plus 💎
✅Full Porting & Flow Development
✅Oversized Ferrea Intake Valves
✅Beryllium Intake Valve Seats
✅Bronze Valve Guides
✅New TRW Exhaust Valves
✅Performance Valve Stem Seals
✅Titanium Retainers
✅Stage 2 Valve Springs
✅Stage 2 Reprofiled Camshafts

➡️ENGINE ASSEMBLY ▪️💎
✅Performance Thermal-Coated Metal Head Gasket
✅Complete Timing Chain Kit
✅ARP Head Stud Performance

➡️AIR & TURBO SYSTEM ▪️💨🌪️💎
✅Stage 5 Anti-Surge Hybrid Turbo TUFD025
✅Race Specification Intake System
✅Aluminium Intake Pipe
✅High Flow Performance Air Filter

➡️DRIVETRAIN & ELECTRONICS ▪️⚙️ ⚡️ 💎
✅Torsen Limited Slip Differential
✅CAN-Bus iBus Controller
✅Full Version Methanol Controller Kit

👏👏A special thank you to our customer for the continued trust our company
We wish him many safe and enjoyable miles with his upgraded Smart Fortwo 451 and every success with his new little rocket.

Enjoy it in good health, and thank you for being part of the Smart HarD TuNinG family.
Chris Pearson 💪💪

Built in Greece🇬🇷
Driven in the United Kingdom🇬🇧

Smart HarD TuNinG🇬🇷 – S.H.T Performance🇬🇷

12/05/2026

🔥 11.3 SEC SMART 451 🔥

🏁🚦Panhellenic Drag Racing Championship 🇬🇷

👑 SMART FORTWO 451 “SILVER DRAG CAR” 👑

✅Manual Gearbox 8.700rpm ⚙️
✅Mitsubishi 999cc 3-Cylinder-12 Valves
✅ECUMaster Black
✅Ron Fuel ⛽️ Q-16 / Methanol Kit System
✅🚦🏁11.3 sec - 200Km/h 0-402m

This was the first real test of a project that represents the future of our company.

Despite a poor 60 foot launch, clutch slipping and running at only around 70% of the engine’s full potential with just 2.0 to 2.2 bar boost pressure, we still achieved an impressive 11.3 second pass during the car’s first official competitive appearance.

And this is only the beginning.

Our goal is clear:
10 second zone. 🚀

👉Special thanks to the Swkratis Kwnstantinidis family for standing behind this vision and supporting this project from day one.

👉Also, a huge thank you to our new ECU calibrator and tuner Sifis Stihl Papadopoulos for accepting this challenge and giving everything to this project in such a short period of time

We strongly believe the next races will reveal the true potential of this car.

Proving through actions not words that
S.H.T Performance is the fastest Smart 451 Performance company in the world🌎

24/04/2026

🚀 STAGE 3 Rhodes Greece 🇬🇷
▪️Smart ForTwo 451 Turbo Engine ▪️

🔘Stock Engine Euro 4 🛠️
🔘Daily Car 🚘
🔘Ron 100 ⛽️

💨 Boost Setup
⏺️Off Boost
• 0.8 bar
• Ideal for city use
ℹ️Low Boost
• 1.0 bar
Balanced performance & reliability
ℹ️ High Boost
🚀1.25 bar constant Pressure
Maximum output setup

👉 A complete Stage 3 performance package has been prepared and delivered to Rhodes, Greece, for a Smart Fortwo 451 Turbo project.
This configuration is based on high quality components, selected for optimal performance and durability.
Every part has been assembled with precision and strict quality standards to ensure reliable high performance results.

👏 We would like to thank our customer for the trust placed in us, and we wish them many enjoyable and safe kilometers.
Pavlos Chatzikonstantinou

_____Tuning Parts by S.H.T Performance 🇬🇷_______
✅ Exhaust Performance Catalyst 200cpsi Catalyst
✅ Manifold Performance
✅ Clutch Kit Performance 3000951038RS
✅ Intercooler Performance
✅ Ignition Coild Performance S*T.0037-R055
✅ NGK Spark Plug Iridium

✅ Hybrid Turbo Stage 3
👉 Custom Billet compressor wheel 11+0 series,(point milling)
37.5 mm /48.0 mm
Turbine wheel – 11-blade
35mm/40mm

✅ Silicone Hoses
✅ Custom Air Filter System by S*T Version 1
✅ Throttle Body 45mm
✅ Injectors 450cc custom umbrella-type spray
✅ Pulley Crankshaft Lightweight 295g
✅ Crankshaft Lightweight
✅ I Boost Control
✅ Upgrade Engine Mount Hardrace
✅ Ecu Remap Engine
✅TCU Remap Gearbox

Check our website for additional information about your cars: 🖥 smart-hard-tuning.com

✉️ [email protected]
📲WhatsApp Number +30 6987987065
📞Telephone Number +30 6987987065 / +2310677810

13/04/2026

🔥 Stage 4 Smart 451 test drive in Malaysia 🇲🇾

📈Low boost setup with real road pulls
Clean response and strong acceleration in every gear

💻 🔝 AFR stayed perfectly flat at 11.3 from start to finish
Exactly how a properly calibrated engine should perform

✅Consistent performance
✅Stable fueling
✅Reliable setup under load

🎥 Video sent by our client in Malaysia 🇲🇾

S.H.T Performance 🇬🇷

06/04/2026

🔘SMART FORTWO 451 USA 🇺🇸 Tuning Project
➡️From NA To Turbo Version
👉Forged Engine Parts & Stage 3 Turbo Kit ☝️👌

A client from the USA 🇺🇸 trusted us to take his stock naturally aspirated Smart 451 engine to the next level.

This project includes a complete Stage 3 forged engine setup, designed to convert the original NA engine into a fully turbocharged performance build.
🔥 From stock… to a completely different machine🔝

Michael Spagnolo, thank you for trusting our company with your project.

We truly appreciate your confidence in our work and we wish you the best possible results with your build.

Enjoy your new “small rocket” 🚀

▪️ S.H.T PERFORMANCE PARTS LIST
🛠️🦾FORGED ENGINE PARTS
☑️ CP Carrillo Forged Pistons Ø72.25 mm
☑️ Forged Connecting Rods
☑️ S.H.T Extreme Thermal Series Head Gasket
(High-temperature resistant coated technology)
☑️ ARP Head Studs
☑️ Cat Cams Spring Valves
☑️ TRV Intake - Exhaust Valves
☑️ Bronze Exhaust Valve Guides
☑️ Cast Iron Intake Valve Guides
☑️ Reinforced Green Valve Stem Seals
☑️ Complete Timing Kit
☑️ Full Engine Gasket Set (Peripheral)
☑️ New Water Pump

▪️ S.H.T PERFORMANCE PARTS LIST STAGE 3
✅Exhaust Performance Decat
✅Manifold Performance Stainless Steel 321
✅Clutch Kit Performance 3000951038RS
✅Intercooler Performance
✅Ignition Coild Performance S*T.0037-R055
✅NGK Spark Plug Iridium

✅Hybrid Turbo Stage 3
•Billet Compressor Wheel 7+7 (Point Milling)
Ø37.5 / 48 mm
•Turbine Wheel 11-Blade – Ø35 / 40 mm
• Custom Hybrid CHRA Setup

✅Silicone Hoses
✅Custom Air Filter System by S*T Version 2
✅Throttle Body 45mm
✅Injectors Bigger
✅Pulley Crankshaft Lightweight 295g
✅Crankshaft Lightweight
✅Hardrace Engine Mount performance
✅Aem Wideband
✅I-Boost Control
✅Ecu Remap Engine 📈
✅Ecu Remap Gearbox 📈 ⚙️

📍 Smart HarD TuNinG – Greece 🇬🇷
🌍 Worldwide projects & shipping

Check our website for additional information about your cars: 🖥 smart-hard-tuning.com

✉️ [email protected]
📲WhatsApp Number +30 6987987065
📞Telephone Number +30 6987987065 / +2310677810

27/03/2026

Smart ForTwo 451 🚀 – RaceBoost Test 🔥
▪️STAGE 3 Plus - Stock Engine ▪️

✅ Methanol system active 🚿
✅ Full pull 1st–4th gear ⚙️
✅ Smooth gear changes ☝️
✅ Stable AFR & controlled power 📈

👉Small Engine ➖ Big Power 👌
This is how a 999cc should run

Smart HarD TuNinG GR

Address

Atreidwn 22 Thessaloniki
Thessaloníki
54249

Opening Hours

Monday	09:00 - 19:00
Tuesday	09:00 - 19:00
Wednesday	09:00 - 19:00
Thursday	09:00 - 19:00
Friday	09:00 - 19:00
Saturday	09:00 - 16:00

Website

https://smart-hard-tuning.com/

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