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BMW 135I 335I 35I N54 N55 2007-2013 (E9X E82 E89) Performance Intercooler

To Fit: 

  • BMW 1-Series E82 E88, Model years: 2007-2013, Model: 135i, 135is, 1M: Engine: N54, N55
  • BMW 3-Series E90 E92 E93, Model years: 2007-2013: Model: 335i, 335xi, 335is: Engine: N54, N55
  • BMW Z4 E89, Model years: 2009-2016: Model: sDrive 35i, sDrive 35is: Engine: N54

do88 performance intercooler designed for easy fitment in your BMW!

This intercooler is constructed to deliver the best possible cooling efficiency even when enduring tough conditions. Manufactured exclusively in aluminium with continuous welds, it guarantees reliability and endurance when you really need it. The increased core volume improves cooling efficiency and significantly lowers the intake air temperature. Naturally, this being a do88 performance product, we have carried out stringent, thorough and continuous tests whilst developing this product to ensure the best possible performance. No compromise has been made. This intercooler is optimised to its full potential in the given space for an easy fitment.

The stock intercooler has quick click connections for both hoses. These connections are both restrictive for the airflow and not ideal in terms of reliability with a high boost tune. The stock intercooler has rubber hoses and plastic J-pipe (intercooler outlet pipe). We have redesigned the intercooler connections to conventional Ø3” (76mm) hose connections. We include reinforced silicone hoses and a 2,5” (63mm) mandrel bent aluminium J-pipe to match these connections. Our J-pipe fits together with the stock charge pipe, or any aftermarket charge pipe that is designed to fit together with the stock plastic J-pipe.
All these improvements result in better cooling, lower pressure drop and a much more reliable intercooler setup for high boost tunes.

The 124% increased core volume is an achievement we are very proud of. It´s a remarkable difference. Perceivable - to say the least. The engine pulls better all over the revs and withstands repeated full throttle runs without building heat. The perception of an intercooler being something to upgrade only after a major engine tune is false, yet widely spread amongst customers and car enthusiasts. During hot Swedish summer days, at repeated pulls, inspired driving or even at ordinary driving in a hotter climate area, it doesn´t take much of an effort for the engine to generate dangerously high inlet temperatures – even on a standard, non-tuned, car. The cooling capacity with an OEM-intercooler is in many cases inferior which will affect the usable power outtake. The heat has to be eliminated, or else the promised output will be decreased as you start giving acceleration.

The stock intercooler plastic air guide will need to be trimmed (see instructions) to make it possible to install our large intercooler. This is required for most aftermarket intercoolers with a large stepped-core design such as ours. When the plastic air guide is trimmed it leaves a large gap at the top of the intercooler which lets valuable ambient air flow slip past the intercooler core. We could not accept this so we designed a plastic air guide which prevents this from happening, it is fastened on top of the intercooler core (this air guide is included in the kit).

Significant advantages of the DO88 performance intercooler (OEM intercooler):

  • Greater core volume: 15517 cm3 (6933 cm3), 124 % larger!
  • Larger frontal cooling area , 1151 cm2 vs 658 cm2, 75 % larger!
  • Air flow at 0,15bar/2,18psi pressure drop: 498 CFM (354 CFM), 41 % higher!
  • Peak powergain of 13 hp! Measured on 335xi N55 with Stage 1 tune.
  • Lower post intercooler air temperature at same conditions: 43°C (58°C), 15°C lower! Measured on 335xi N55 all stock except the intercooler.

This intercooler comes with everything required for easy installation. Bolts, washers, hoses, clamps, J-pipe, air guide and installation instructions are included.

Click here to view fitting instructions.

Please take care of your engine. Choose DO88 everytime!

OEM Part Numbers (for reference only): 754003504, 70376685, 70362303

DO88 Ref: ICM-350-S, ICM350, ICM350S

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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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