Pure Turbos BMW N55 PURE Stage 2 Hybrid Turbocharger Upgrade - E82/E88 135i & E90/E91/E92/E93 335i (E-Series, OEM-Fit Stock Location, 500+ whp)

Pure Turbos N55 Stage 2 Hybrid for BMW 135i and 335i E-Chassis

Serious N55 power without fabrication. This uprated drop-in turbo is a direct bolt-on for E-Series BMW 135i and 335i, delivering huge gains with the right supporting hardware and ECU calibration. Built by Pure Turbos and designed to use the original turbine and compressor housings, it looks factory in the bay yet supports over 500 wheel horsepower when paired with suitable fueling, intercooling and mapping. Ideal for fast road, track day and tuned daily builds.

We run this unit on our own projects and customer cars at MJ Modifications, and the feedback has been outstanding. Rapid spool, strong mid-range punch and a relentless top end, all with OEM-like drivability and reliability.

Why enthusiasts choose this N55 hybrid

• Direct bolt-on in the factory position using original housings for a stealth, stock-look finish
• Point-milled billet compressor wheel for higher airflow and efficiency
• HiFlow turbine wheel for lower back pressure and stronger top-end power
• Dual compressor and turbine oil seals for durability under sustained boost
• Large diameter 360 thrust bearing upgrade for reliability on tuned setups
• Extensive turbofold machining and optimisation
• VSR balanced for smooth operation and long service life

Real-world results

On healthy E chassis N55 cars running quality pump fuel (93 octane or 99 RON), intercooler, high-flow downpipe, upgraded charge pipe, LPFP and a proper custom map, we typically see 430 to 480 whp. Well-sorted builds have recorded around 520 to 523 whp. Figures depend on hardware, fuel quality, condition and calibration strategy.

Fitment

Designed for BMW E-Series with the N55 PWG engine:

• E82 and E88 135i
• E90, E91, E92 and E93 335i

Recommended supporting mods

• Pure Turbos E-Series High Flow Inlet Pipe for N55
• Go Fast Bits diverter valve upgrade for N55
• Genuine BMW N55 PWG turbo installation kit
• Front mount intercooler, performance downpipe, reinforced charge pipe, upgraded low-pressure fuel pump and a quality bespoke tune

Core exchange and deposit

This hybrid is supplied on an exchange basis. Send your standard N55 turbo core for upgrading. Please ship the bare core only; additional parts may not be returned.

Daily driver and cannot send your turbo first? A £375 deposit option is available for PWG applications. We can dispatch an in-stock upgraded unit and refund the deposit after inspection when your undamaged core is received. Stock is limited, so contact us to confirm availability.

Installation and tuning

Professional fitting and calibration are strongly recommended to maximise performance and reliability. MJ Modifications offers full installation services in Warwickshire. For a quote, email info@mjmodifications.co.uk.

Who this upgrade is for

• BMW 135i and 335i owners seeking a drop-in N55 turbo replacement that dramatically increases power
• Builders wanting a stealth, factory-location turbo that supports big numbers with the right supporting mods
• Drivers who value quick spool, wide powerband and OEM-like manners on the road

Videos

2012 135i DCT with N55 PURE Stage 2 Turbo (18 psi)

Installation guides:

Part number

PT-E-N55-S2

Manufacturer

Pure Turbos

Warranty

12 months warranty.

Search terms to help you find this product

BMW 135i turbo upgrade UK, BMW 335i turbocharger upgrade, N55 hybrid turbo drop-in, E82 135i performance turbo, E92 335i bolt-on turbo, N55 PWG turbo replacement, BMW E chassis N55 turbo UK supplier, direct bolt-on turbo N55, factory-location turbocharger, fast road turbo for N55, 500whp N55 capable turbo, Pure Turbos N55 UK.

For availability, core exchange scheduling and fitting support, contact our team at info@mjmodifications.co.uk. Based in Warwickshire, MJ Modifications is your UK source for N55 performance parts, installation and advice.