do88 Performance Intercooler - BMW N54 / N55 (E82/E88/E9X) 2007-2013

do88 Performance Intercooler - BMW N54 / N55 (E82/E88/E9X) 2007-2013

do88 SKU: DOBICM-350-S
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Performance intercooler for the N54 and N55 BMWs that replaces the restrictive factory quick-click connections with conventional 76 mm (3 in) hose connections. Core volume is 15517 cm3 against 6933 cm3 for the OE unit, 124 percent more, with 1151 cm2 of frontal cooling area against 658 cm2. Airflow reaches 498 CFM at 0.15 bar (2.18 psi) pressure drop where the OE cooler manages 354 CFM, 41 percent higher. On a 335xi N55 with a Stage 1 tune do88 recorded a 13 hp peak gain, and charge temperature fell to 43°C from 58°C on an otherwise stock car. The kit includes a 63 mm (2.5 in) mandrel-bent aluminum J-pipe and a purpose-made plastic air guide that closes the gap left when the factory guide is trimmed.

Specifications

Type Stepped-core front-mount performance intercooler
Material Aluminum, continuous welds
Core Volume 15517 cm3 (OE 6933 cm3, 124% larger)
Frontal Cooling Area 1151 cm2 (OE 658 cm2, 75% larger)
Inlet/Outlet 76 mm (3 in) hose connections
Airflow 498 CFM at 0.15 bar (2.18 psi) pressure drop, 41% over OE
Charge Air Temperature 43°C vs 58°C OE, 15°C lower
Power Gain 13 hp peak, measured on a 335xi N55 with Stage 1 tune
Included Intercooler, 63 mm (2.5 in) mandrel-bent aluminum J-pipe, silicone hoses, clamps, air guide, bolts, washers, instructions
Quantity 1
Part Number ICM-350-S
OEM Replacement 17517540035, 13717590304, 754003504, 70376685, 70362303

Documents: Installation Instructions (PDF)

This part fits:

Year Make Model Submodel
2007-2013 BMW 1 Series (E82 E88) 135i, 135is, 1M (N54, N55)
2007-2013 BMW 3 Series (E90 E92 E93) 335i, 335xi, 335is (N54, N55)

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