“It’s about damn time!” That’s what the industry shouted back when they found out that CSF would be releasing the world’s best BMW N54 intercooler. Late to the party considering the platform is now over ten years old, but after the overwhelming success of the CSF’s newer BMW n55 intercooler, CSF had to answer the call and supply an industry-leading design to address all the shortcomings of not just the OEM unit, but also other aftermarket intercoolers. 


The BMW N54 engine has become known as one of the best built, most reliable engines in the world, especially from a high performance tuning standpoint. Many owners are now pushing well over 500hp out of these motors, some getting in the 700’s on big single turbo set ups, and a few now inching near or over the 1000hp mark! Truly amazing performance can be achieved when using the proper components from quality high performance companies, including needing a worthy high performance intercooler to handle the increased Intake Air Temperatures (IAT’s) generated from more power and higher boost pressures associated with these built vehicles. 


Is it time to replace your OEM intercooler?

  • The weak plastic endcaps can become weak & brittle over time with repeated heat cycle use and normal wear. Keep in mind the model range of 2004-2013 so the original OEM intercooler can be anywhere from 5 to almost 15 years old at the time of writing this article. 
  • The OEM style tube/fin core has many performance limitations (keep reading below), and may also become full of debris from typical road use effecting performance of an already limited intercooler. Also, being mounted in the front fascia of the vehicle, small rock chips or debris may cause small punctures in the tubes of the core, causing small boost leaks which users may not realize, further reducing intercooler performance. 
  • The direct injection system of the N54 engine causes massive amounts of oil build up in the charge piping, intercooler, and intake manifold. This further reduces the performance of the intercooler. 
  • Before purchasing another OEM replacement intercooler for ~$530USD, potential buyers should realize that there is a much better alternative (at an even better price point!) with CSF’s new BMW N54 intercooler. 

Intercooler Design

  • The OEM intercooler is made from plastic end tanks that are crimped on to an aluminum tube/fin core that is ~4 inches thick (105mm core width) and is 5 inches in height (127mm). This may be enough to keep IAT’s in check on a completely unmodified / stock vehicle, but once users to start increase power through bolt-on modifications, tuning, and built engines, the OEM intercooler will become the Achilles heel of the system with IAT’s skyrocketing out of the optimal range and drastically lowering the performance capabilities of the vehicle. 
  • Enter CSF with their new, stepped core design, bar/plate high performance BMW n54 intercooler. This “drop-in fit” intercooler, which requires no modifications to install, has a bottom / larger section that is 5.5 inches thick (140mm) with a front face that is massive ~8.25 inches tall (210mm). A huge improvement over the OEM unit, and enough to handle even the most advanced n54 engine builds. Good for 1000hp no problem!


  • The OEM, and some higher-price aftermarket units, are made out of a tube/fin style core. While lightweight, this type of core is prone to heat soaking under high boost levels and prolonged use. Also, the core is susceptible to bursting (or bulging) due to increased boost levels as tube/fin cores can not take the higher boost pressures of a high performance system. 
  • CSF’s new BMW N54 intercooler is made from it’s industry exclusive rounded bar/plate core design. The rounded front face of the cooling bars allows for better airflow into the core. Airflow hits the core surface, and rather than scattering like it does with hitting the face of a flat bar that all competing products have, it travels around the face of the round bar and into core for much better performance than both the OEM design (flat face) and all other aftermarket competitors (all have flat face tubes or bars).
  • CSF has also wind-tunnel tested (in-house) and optimized the size of the core and fin density of the intercooler core to ensure low pressure drop and proper airflow into the rest of the system, including the radiator which is known to be another shortcoming of the cooling system.

See how CSF’s high performance N55 intercooler with same style rounded bar/plate core design compares to a more expensive aftermarket offering that uses tube/fin. The same type of performance benefits can be expected from CSF’s new BMW N54 intercooler – Click here!

With CSF’s high performance bar/plate style core, you never have to worry about spikes in pressure or failure due to higher boost pressures, the CSF intercooler is pressure tested to 120psi!


  • Compared to the OEM style plastic crimped on end tanks, the CSF unit is vastly improved. The all-aluminum cast end tanks are 100% TIG welded to the high performance core for better durability, reliability, and longevity. The CSF intercooler comes with a lifetime guarantee against manufacturing defects or failure due to normal / intended use. 
  • Just like the OEM design, the CSF intercooler integrates the factory style “Quick-Connect” inlet/outlet fittings. CSF has CNC machined and welded these fittings to the core for perfect factory-level fitment. (new high performance locking spring clip included)



Don’t be fooled by cheaper alternatives on the market. Yes, you can find an advertised “high-performance” intercooler for much cheaper, but what you end up buying may only be marginally better than the OEM unit you’re replacing. For the serious high-performance enthusiast, CSF offers the best value when deciding on a high-quality high-performance intercooler solution. 

Performance and Size

Again, don’t be fooled by extremely large intercoolers. There are some options available that are 7inches or larger in core thickness. Bigger is not always better, especially when it comes to proper sizing and performance benefits of a high-performance intercooler. No one should consider hanging off the front of their “performance” car an intercooler that is more than ~30 pounds. When CSF decided on a proper sizing, the biggest intercooler possible was developed with a max weight of 30 pounds. Some larger options on the market are way over 40 pounds! Way too much to hang off the front of the car, the last place you want to add weight in a small performance sedan or coupe like the vehicles the N54 motor is found in. Also, intercoolers with thicker cores or options that say they have a “denser” core are not taking into account the negative effects on airflow into the rest of the cooling system. There is little to no true performance benefit if you have a cooling system with a massive intercooler resulting in very low IAT’s, but with very high water temperatures because of the lack of airflow, often resulting in the engine going into limp mode, especially when driving on the race track. 


  • CSF’s new BMW N54 intercooler is the only TRUE plug and play solution compared to the rest
  • No cheaper silicon hose clamp system, only BMW style “Quick-Connect machined fittings
  • OEM mounting locations w/ fitment kit and instructions included 
  • Clears OEM crash bar / no modification to install with no cutting or trimming required.


When purchasing a CSF intercooler, you’re purchasing from a cooling system manufacturer that is an ISO-certified Tier-1 OEM supplier that has designed, built, and tested the entire intercooler in-house. Competitors source their cores from overseas factories, and either weld the coolers themselves (not factory level production), or simply purchase an intercooler from a supplier source. Also, CSF intercoolers are meticulously hand welded by expert TIG welders and finished in a semi-gloss black or silver finish that is much more durable to damage than uncoated intercoolers. Finally, each intercooler is individually packaged with hardware kit, instructions, and CSF logo stencil.

CSF BMW High-Performance N54 Intercooler

Part Numbers

  • Semi Gloss Black – #CSF8127B
  • Brilliant Silver –  #CSF8127

Fitment Specifications

  • Bottom Section: 140mm thick (5.5 inches)
  • Top Section: 61mm (2.4 inches thick)
  • Total Height of Front Face: 210mm (~8.27 inches)

What’s Included?

  • CSF BMW High-Performance N54 Intercooler
  • CSF Logo Stencil
  • Hardware Kit, including high boost locking spring clips
  • Instructions

OEM Part Number

  • 7517540035


  • CNC Machined OEM Style Quick Connect Fittings
  • Rounded Bar and Plate Core
  • Stepped Intercooler Design 
  • OEM Mounting locations
  • Direct Plug and Play


  • MSRP $529 / MAP $499

Application Chart

BMW 335i

  • 2007 BMW 335i Intercooler
  • 2008 BMW 335i Intercooler
  • 2009 BMW 335i Intercooler
  • 2010 BMW 335i Intercooler
  • 2011 BMW 335i Intercooler
  • 2012 BMW 335i Intercooler
    • Body: Convertible, Chassis: E93
  • 2012 BMW 335i Intercooler
    • Body: Coupe, Chassis: E92
  • 2013 BMW 335i Intercooler
    • Body: Convertible, Chassis: E93
  • 2013 BMW 335i Intercooler
    • Body: Coupe, Chassis: E92

BMW 335xi

  • 2007 BMW 335xi Intercooler
  • 2008 BMW 335xi Intercooler

BMW 335is

  • 2011 BMW 335is Intercooler
  • 2012 BMW 335is Intercooler
  • 2013 BMW 335is Intercooler

BMW 1 Series M

  • 2011 BMW 1 Series M Intercooler


  • 2013 BMW X1 xDrive35i Intercooler
  • 2014 BMW X1 xDrive35i Intercooler
  • 2015 BMW X1 xDrive35i Intercooler

BMW 135i

  • 2008 BMW 135i Intercooler
  • 2009 BMW 135i Intercooler
  • 2010 BMW 135i Intercooler
  • 2011 BMW 135i Intercooler
  • 2012 BMW 135i Intercooler
  • 2013 BMW 135i Intercooler

BMW 335i xDrive

  • 2009 BMW 335i xDrive Intercooler
  • 2010 BMW 335i xDrive Intercooler
  • 2011 BMW 335i xDrive Intercooler
  • 2012 BMW 335i xDrive Intercooler
  • 2013 BMW 335i xDrive Intercooler
    • Body: Coupe, Chassis: E92


  • 2009 BMW Z4 sDrive35i Intercooler
  • 2010 BMW Z4 sDrive35i Intercooler
  • 2011 BMW Z4 sDrive35is Intercooler
  • 2011 BMW Z4 sDrive35i Intercooler
  • 2012 BMW Z4 sDrive35i Intercooler
  • 2012 BMW Z4 sDrive35is Intercooler
  • 2013 BMW Z4 sDrive35i Intercooler
  • 2013 BMW Z4 sDrive35is Intercooler
  • 2014 BMW Z4 sDrive35i Intercooler
  • 2014 BMW Z4 sDrive35is Intercooler
  • 2015 BMW Z4 sDrive35i Intercooler
  • 2015 BMW Z4 sDrive35is Intercooler
  • 2016 BMW Z4 sDrive35i Intercooler
  • 2016 BMW Z4 sDrive35is Intercooler

BMW 135is

  • 2013 BMW 135is Intercooler
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    Hi i am very interesting in your intercooler upgrade for the n54 335i. I dont want to cut anything. does this require cutting anything to install?

    I installed a single turbo on my N54 and did away with all my stock intercooler piping. Is it possible to use this intercooler with my “cheap silicon hose clamp system”?

    Hi Phil,

    The intercooler inlets/outlets were not designed to accommodate slip on hose & clamp systems. You would need to procure some boost/charge pipes that use OEM type connections. There are some aftermarket versions for single turbo conversions. We do not have any recommendations on them though.