The Turbo Engineers


SKU TTE10086 Stock Order
Available for stock order from The Turbo Engineers.
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£1,473.71 €1,728.81 $1,874.12 inc. VAT
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TTE340 begins as a brand new standard IHI turbocharger that we dismantle and then set about upgrading and optimizing as engineers to create a fast spooling and powerful hybrid. TTE340 Turbocharger is great power stage for the Megane RS while retaining the OE unit for Plug & Play fitment.

Engineered & Enhanced

The formula to making a TTE340 starts with a much larger TTE billet compressor wheel.  7+ 7 blades, chosen because is highly efficient, new generation type with very thin blades, creating an extremely high flow for comparative size, giving a compressor map that's very wide. The Re-Profiled compressor cover is machined to an optimised tolerance to ensure maximum compressor efficiency is given.

A key part to driving the large compressor and in turn making this unit produce the huge power advantage overstock is machining and fitting a far larger 9 Blade High-Flow turbine and shaft, while still keeping the original core, this is not so easy to do. This 9 Blade turbine gives much lower back pressure and keeps EGT lower compared to the stock turbine. We also fitted a TTE motorsport upgrade bearing system for durability.


Precisely balancing our turbochargers is a key critical factor to become a TTE upgrade unit as longevity and performance are paramount. Good balance improves acoustics also. Subsequent great care is taken with all TTE turbochargers to achieving our balance standards. Firstly parts are balanced at slow speeds up to 2800RPM in multiple planes using our single parts machine, then components are assembled and then the CHRA are dynamically balanced, but this time depending on application at up to 250,000 RPM in multiple planes using our in-house VSR machine to acquire the ultimate equilibrium, to a standard far higher than OEM. Each turbocharger is supplied with serial numbered balance test result document.


  • Original factory turbocharger as the base part
  • TTE Billet Milled compressor 7+7 BLADE
  • TTE 9 Blade High-Flow Turbine
  • TTE Upgrade bearing system 
  • Plug and Play installation
  • 340 PS Capable 
  • Plug and Play installation
  • Single parts finely balanced then components assembled and core high-speed VSR balanced
  • Supplied with a balance test result document
  • Proven TheTurboEngineers quality
  • Made in Germany

 Please check out our TTE HEAT SHIELD ISOLATION ADD-ON option that’s available.  



Important Upgrade Turbocharger Information - Sending Your Turbocharger


After you have ordered the upgrade from the online store by selecting ‘Upgrade Your Turbocharger” option in the drop-down box on the product page please download the ‘Upgrade Turbocharger Form’ at the bottom of the product page. Visit this Link




If sending turbocharger/s for an upgrade please ensure you print, read and complete this FORM. Place form inside the package with turbocharger/s.


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