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BMW 320i 330e 330i G20 G21 - DO88 Intake System

To fit:

BMW 320i 320iX 330e 330i 330iX (G20 G21)Engine: B48 / B46 - Model years: 2018 -

do88 proudly presents the Intake System for BMW 320i and 330i G20, engineered for high power outputs!

Filtration, airflow and heat are the key considerations when designing a new intake system for a turbocharged engine.

Our do88 intake system has been developed to provide the turbo with good filtration, improved airflow path while also maintaining low inlet temperatures. One design challenge for this B48 / B46 Intake system is location, it is just next to the exhaust manifold which rapidly heat soaks this position in the engine bay.

High air intake temperatures are terrible for the engine performance as the turbo would have to build boost with hot, less dense air. This is why a fully sealed intake system is the only way to go to ensure IAT’s are kept to a minimum. A fully sealed system however has a challenge since it results in a restriction with only one stock air feed in the bottom of the air filter box to draw air in from. During development we noticed the system must have a secondary air feed to remove this restriction. Our sealed airbox also has a heat shield to minimise the radiative heat transfer from the exhaust manifold. To guarantee enough air volume around the filter we designed a large 7” airbox which of course also leaves space for strut braces.

As replacement to the stock intake hose we designed a large 102mm (4”) mandrel bent aluminium pipe combined with a custom made silicone hose. Fitted to the intake pipe is our large custom-designed air filter. The filter has a densely knitted cotton gauze for superior filtration.  It is of course washable and reusable for optimum performance and long service life.

The original air filter box and turbo inlet hose are designed with elements that minimise the noise produced by the turbo and the air induction. Specifically, the factory intake hose features two sound silencers to ensure the turbo operates quietly. In contrast, our intake system comes without these noise-reducing elements, allowing a more audible turbo spool and induction sound.

Key features:

  • Large 105mm (4,1”) custom-designed cotton air filter with densely knitted cotton gauze. The filter is delivered without any filter oil applied therefore we recommend that the air filter is applied with cotton filter oil to increase air filtration if you drive your car in any dusty environments. You can for example use BMC Filter oil with part number "WAFLU250".
  • Washable air filter for optimum performance and long service life.
  • We recommend cleaning the air filter every 10.000 km, please use universal cleaning product designed for cotton air filters. You can for example use BMC Washing fluid with part number "WADET500".
  • A fully enclosed / sealed design, ensuring that only cold air is supplied to keep the IAT´s low.
  • Precision-engineered, design-optimized for unrestricted airflow.
  • Optimised for tuned engines, hybrid turbos and big turbo kits.
  • Increases airflow up to 23 %.
  • Reduced pressure drop and strain on factory components compared to OE intake.
  • Improved throttle and boost response.
  • Smooth design with no sharp or harsh bends or restrictions.
  • Produces an enhanced induction sound from the turbocharger and diverter valve.
  • Compatible with most future mods, i.e. turbo upgrades.
  • UV and heat-resistant, high-gloss clearcoat for lasting protection.

Click here to view installation instructions

Equivalent OE part numbers: 13718580424, 13718580428, 13718656981 (for cross reference only)

do88 product references: DO88LF-250, LF250, DO88LF250

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PFS Parts Ltd.
Unit 8 - Saxon Court,
Bradfield Close,
Finedon Road Ind. Est,
Wellingborough,
NN8 4RQ,
United Kingdom
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PFS Parts Ltd. is a specialist parts company established in 2003. PFS Parts began as a Saab & Volvo parts supplier, but now also offers parts for other marques, as well as offering performance parts for many models via the DO88 perormance product range from Sweden. Click for more about PFS Parts...

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