Smart HarD TuNinG GR

Smart HarD TuNinG GR Smart HarD TuNinG 🇬🇷

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


“THE POWER OF A 3-CYLINDER ENGINE”

🚀🇬🇧STAGE 4Plus Tuning Project🔬Smart ForTwo 451 ▪️3B21 Mitsubishi Turbo Engine▪️3 Cylinder-999cc-12Valves➡️Stage 4Plus 26...
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🌎

🚀 STAGE 3 Rhodes Greece 🇬🇷 ▪️Smart ForTwo 451 Turbo Engine ▪️🔘Stock Engine Euro 4 🛠️🔘Daily Car 🚘 🔘Ron 100 ⛽️ 💨 Boost Set...
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 🇬🇷

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

🌎 International Tuning Project Smart ForTwo 451 👉From MHD 71Hp to 🔥 200HP🔥 Turbo Engine Full turbo engine conversion, re...
24/03/2026

🌎 International Tuning Project
Smart ForTwo 451
👉From MHD 71Hp to 🔥 200HP🔥 Turbo Engine
Full turbo engine conversion, retaining the factory MHD wiring architecture
🔘 No modification or removal of the original wiring system
🔘 Professional integration ensuring correct and reliable turbo operation

✅STAGE 3 Plus - Stock Pistons & Rods
✅Mitsubishi 3B21 Turbo Engine Euro 4 Version
✅ARP Head Bolts Performance
✅Ron 100 ⛽️
✅3-stage boost pressure control (Low-High-Race)
✅📈Low Boost 1.15 - 175HP&237Nm Torque
✅📈High Boost 1.28 - 186HP&250Nm Torque
✅📈Race Boost 1.48 Active Methanol 🚿 - 200HP&290Nm Torque

☝️A project developed from the ground up by
S.H.T Performance 🇬🇷

The vehicle arrived from Turkey 🇹🇷 to Greece 🇬🇷 as a 71HP MHD platform,
with a clear direction for complete redevelopment.

Throughout the process, every aspect of the car was reworked and brought to a new standard.
From powertrain and turbo system to drivetrain, braking, suspension, electronics, interior and exterior,
the entire vehicle was built as one cohesive package.
The objective was not a simple upgrade,
but the creation of a fully integrated 200HP+ performance build.

The final result reflects the level of detail and engineering applied across the project.

👉 Complete interior and exterior upgrade presentation by S.H.T Performance 🇬🇷

🛠️Tuning Parts STAGE 3 Plus👌
▪️Original Mitsubishi 3B21 Turbo Engine Euro 4
▪️Original Automatic Brabus Gearbox
▪️Exhaust Performance Decat
▪️Manifold Performance
▪️Clutch Kit Performance
▪️Intercooler Performance
▪️Ignition Coild Performance S*T.0037-R055
▪️NGK Spark Plug Iridium

▪️Hybrid Turbo Stage 3
👉 Custom billet compressor wheel 7+7, 37.5/48mm, point-milled design
👉 11-blade turbine wheel, 35/40mm shaft configuration
👉 Upgraded lubrication system, optimized for increased turbo speed and durability

▪️Silicone Hoses ( Turbo to Intercooler & Intercooler to Throttle)
▪️Custom Air Filter System by S*T Version 2
▪️Throttle Body 45mm
▪️Injectors Bigger
▪️Pulley Crankshaft Lightweight 295g
▪️Crankshaft Lightweight
▪️Aem Wideband
▪️ARP Head Bolts Perfomance
▪️Methanol Kit
▪️Radiator Coolant Performance
▪️I-Boost Control Can Bus Version
▪️Bilstein B14 Suspension
▪️Powerflex Bushings (Full Setup)
▪️Hardrace Adjustable Arms
▪️Torsen ATB Differential
▪️Performance Hardrace Engine Mount
▪️Ecu Remap Engine
▪️Ecu Remap Gearbox

🛑 BRAKING SYSTEM
▪️AP Racing Front Brake Kit
▪️Rear Brake System Upgrade
▪️Custom CNC wheel spacers

🎨 EXTERIOR
▪️Full Brabus Styling Package
▪️DRL + Spoiler Kit
▪️Black (Smoke) Rear Lights
▪️Brabus Wheel Setup 17/16

🛋️ INTERIOR
▪️Full Custom Napa Leather Interior
▪️Brabus Steering Wheel with F1 Paddles
▪️Brabus Custom Details & Finishing

We would like to thank our client for the trust placed in Smart HarD TuNinG and for giving us the opportunity to deliver this complete project.
Ersin Tangır i wish you to enjoy your new small rocket 🚀 always with safe and precise driving.👏🤝

👉☝️ Every build by Smart HarD TuNinG reflects precision, dedication and high standards without compromise.
The result of years of work where actions and results define our identity.

🇦🇷 🇮🇹  STAGE 3 WORLDWIDE PROJECT  🛫📦 🌎 ▪️Smart ForTwo 451 Turbo Engine▪️👉Stage 3 Smart 451 Turbo builds prepared by S.H....
23/02/2026

🇦🇷 🇮🇹 STAGE 3 WORLDWIDE PROJECT 🛫📦 🌎
▪️Smart ForTwo 451 Turbo Engine▪️

👉Stage 3 Smart 451 Turbo builds prepared by S.H.T Performance 🇬🇷, engineered with the same performance philosophy and technical standards.

Both projects were developed for high boost reliability, fast turbo response and strong mid-range torque delivery, combining performance parts with precise calibration.

Built in Greece 🇬🇷. Delivered internationally 🌎🛫

🇦🇷 Argentina – Stage 3 Package Includes:
Alejandro Valaouris 👏

✅• Hybrid TD025 Turbocharger
Featuring Custom Snake-Curve Aerodynamic Blade Design & Precision CNC Point Milling
✅• Clutch Kit Performance
✅• Throttle Bigger 45mm
✅• Lightweight Flywheel 3.7Kg
✅• High-Flow Bigger Injectors
✅• ECU Engine Remapping
✅• NGK Spark Plug iridium
✅• Ceramic Coating Intake Manifold
✅• Boost Controller (iBoost)
✅• Bilstein B14 Suspension Setup
✅• BRABUS Wheels 16”/17”



🇮🇹 Italy – Stage 3 Package Includes:
Fabio Angeloni 👏

✅• Hybrid TD025 Turbocharger
Featuring Custom Snake-Curve Aerodynamic Blade Design & Precision CNC Point Milling
✅• Performance Exhaust Manifold
✅• Custom Perfomance Air Filter System Version 1
✅• Silocone Hoses
✅• Clutch Kit Performance
✅• Pulley Cranshaft Lightweight 295g
✅• ECU Engine Remapping
✅• NGK Spark Plug iridium
✅• Boost Controller (iBoost)
✅• Performance Ignition Coil S*T.0037-R055

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

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

🇺🇸 Smart ForTwo 451 Turbo – Stage 2 Build 👌🔩Full stock engine rebuild & performance upgrade➡️ Customer: USA Chris Michae...
17/02/2026

🇺🇸 Smart ForTwo 451 Turbo – Stage 2 Build 👌

🔩Full stock engine rebuild & performance upgrade
➡️ Customer: USA Chris Michael Royalty 👏

👉Another complete project delivered overseas.
A fully rebuilt original 3 Cylinder Turbo Engine, assembled from zero and ready for installation.
Complete stock engine rebuild, professionally restored and upgraded to Stage 2 specification.
Engineered and built in Greece. Delivered to the United States.

▪️Engine Rebuild Specification▪️
Mitsubishi 3B21 -Turbo Engine
3 Cylinder -999cc-12 Valves

✅• Complete engine disassembly
✅• Block inspection & precision measurement
✅• Cylinder honing
✅• New OEM-spec pistons
✅• New piston rings
✅• New main bearings
✅• New connecting rod bearings
✅• Full cylinder head rebuild
✅• New valves
✅• New valve seals
✅• New timing components
✅• New water pump
✅• Reinforced Thermal Head Gasket
✅• New ARP head bolts
✅• Professional assembly with calibrated tolerances

Turbo & Stage 2 Configuration

✅• TD025 Stock Original Turbo
✅• Performance wastegate
✅• Stock Euro 4 injectors
✅• Remap Ecu Engine

Stage 2 ready specification.
All remaining Stage 2 components were previously supplied to the client and are already installed on the vehicle.

Smart Hard Tuning 🇬🇷
Performance without compromise.
_______________________

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

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

28/01/2026

🚀390 HORSEPOWER – Silver Drag Smart 451🧸🚦

▪️Mitsubishi 3B21 Forged Engine
▪️STAGE 5 by S.H.T Performance 🇬🇷

Smart ForTwo 451 | 999cc | 3-Cylinder | 12V
•Manual Gearbox 8.600rpm ⚙️
• No nitrous use (without) ❌

👉ECUMaster Black, ECU Remapping 💻by
Sifis Stihl Papadopoulos SIFSPEED 🇬🇷

✅• Next-generation Custom Hybrid Turbo – Dual Ball Bearing
✅• Fully custom ported and engineered cylinder head
✅• Custom Order CatCams Camshafts (Veltiosis Gr)
✅• VP Q16 fuel & 1000cc Methanol Injection Kit


By the end of 2025, this race car built by our company had completed its setup at 331 horsepower, fully aware that the platform was capable of delivering significantly more.

The S.H.T Performance team designed and built a next-generation Hybrid Turbo with Dual Ball Bearings, achieving a result that has occurred for the first time on a 1000cc, 3-cylinder engine, producing close to 400 horsepower.

The most important factor of this project is reliability.
The car completed multiple consecutive dyno runs, while full ECU calibration was handled by SifisSpeed (Thessaloniki, Greece), proving that serious and precise engine management can deliver truly extraordinary results.

The first drag race of May will be especially important for our company, as we will compete for the first time in the Index 10.

In 2025, we proved that we are the fastest Smart 451 company.
In 2026, the bar continues to rise.

🏁S.H.T Performance – When limits no longer exist.

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

Alerts

Be the first to know and let us send you an email when Smart HarD TuNinG GR posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.

Contact The Business

Send a message to Smart HarD TuNinG GR:

Featured

Share