7.5″ Intercooler BMW E82, E88 135i N54, N55

KPerformance™ 7.5″ Front Mount Intercooler for BMW E82, E88 135i models with N54 and N55 engines.

Although originally developed for petrol applications, this intercooler is also widely used in high-power BMW M57 and N57 diesel builds due to its large 7.5″ core, providing exceptional cooling efficiency. Engine-facing universal inlet and outlet connections secured with hose clamps simplify custom piping installation and eliminate the restrictive OEM quick-connect system.

Our intercooler delivers up to 80% more cooling capacity over OEM. Built with a high-density Bar & Plate core, it keeps intake temps low even under extreme boost pressures (3 bar+). The result is reliable, consistent performance — perfect for aggressive Stage 2 and Stage 3+ builds, where every degree counts.

Kit includes: Intercooler+ 2 rubber hoses + 4 hose-clamps + elbow pipe.

FITS THESE BMW MODELS:

BMW 1 Series: E82, E88 [2007-2013]
135i (225kw / 306hp) – N54
135i (225kw / 306hp) – N55
1M Coupe (250kw / 340hp) – N54T

If your model is not listed here, look for it under another product. If you cannot find your model anywhere, contact us for assistance.

Note: While fitment on M57 and N57 engines is possible, it is not direct. Custom modifications are required, and installation should only be performed by experienced installers or professional workshops.

SPECIFICATION:

• Core width: 500 mm
• Core height: 152 / 285 mm
• Core depth: 75 / 190 mm (7.5″)
• Inlet/outlet: 76 mm (3″)
• Air capacity: 13.7 L
• Structure: Bar & Plate
• High-grade aluminum
• Intercooler weight: 13.1 kg
• Hoses and clamps included

⚠️ BE AWARE: Not All Intercoolers Are Created Equal

Many less reputable sellers offer intercoolers that may look identical on the outside, but inside they use a cheap Tube & Fin core. These cores are typically 30–60% lighter, far less durable, and deliver only a fraction of the cooling performance of a true Bar & Plate intercooler.

OEM reference part numbers: 17 51 7 540 035, 17517540035, 7540035