do88 Performance Intercooler – ICM-350-S – Product Description
do88 Performance Intercooler – a high-performance intercooler for BMW models with N54/N55 engines (e.g., 135i, 335i). This intercooler was specifically designed for easy installation in your BMW and serves as an upgrade to the standard intercooler.
Key features & benefits:
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Larger core volume: approx. 15,517 cm³ vs. 6,933 cm³ of the OEM part – about 124% more air volume .
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Larger frontal cooling surface: 1,151 cm² vs. 658 cm² – approx. 75% larger surface area for better heat dissipation.
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Increased airflow: approx. 498 CFM compared to 354 CFM at the same pressure difference – around 41% higher airflow .
- Performance increase: Up to approximately 13 hp more power under optimized conditions (e.g. Stage 1 tuning).
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Lower intake air temperatures: approximately 15 °C cooler behind the intercooler compared to the standard solution under the same conditions.
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High-quality construction: Made entirely of aluminium with continuous welds for high reliability and durability.
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Redesigned connections: Conventional Ø3″ (76 mm) hose connections , plus reinforced silicone hoses and a mandrel-bent aluminum J-pipe to improve flow and reliability.
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An additional plastic air deflector is included to optimally direct the airflow over the core.
Scope of delivery (according to installation PDF):
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do88 Performance Intercooler
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Intercooler inlet silicone hose
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Intercooler outlet silicone hose
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J-pipe (charge air pipe)
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Plastic air deflector
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4x hose clamps
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2× Torx T30 screws (thermoplastic)
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4× Sheet metal screws (with Phillips head)
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2× M6 washers
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1× cable tie
Suitable for:
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BMW 1-Series E82 / E88 (135i, 135is, 1M)
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BMW 3-Series E90 / E92 / E93 (335i, 335xi, 335is)
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(partially also fits Z4 35i/35is – depending on the vehicle year/engine)