Brand: Induction Technology Group
ITG air filters use a three-stage foam for excellent airflow with great filtration. These filter elements are the domed version of the ITG "Megaflow" JC40 series racing air filters. This sausage style lacks the distinctive red band on the top of the standard Megaflow filters but retains the 3-stage foam.
The JC40 series is designed to fit one or two closely-spaced carburetors (such as Weber DCOE, IDA, IDF) or up to 4 throttles on a fuel injection system. The element measures 5 9/16" wide x 14 15/16" long. The nominal height in the part number refers to the internal height in millimeters. Choose a size that leaves a gap between the filter and air horns of at least 19mm (3/4") for street or 32mm (1 1/4") for race applications.
The matching ITG JC40 Blank Baseplate (Part No. ITG-09JC40) is sold separately. Filter elements sold individually.
| ITG JC40 Height Chart |
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| Model | Internal Height | Overall Height | HP Rating* | Part No. |
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| JC40S/40 | 40mm (1.6") | 65mm (2.6") | 325 | ITG-JC40S-40 |
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| JC40S/65 | 65mm (2.6") | 90mm (3.5") | 415 | ITG-JC40S-65 |
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| JC40S/100 | 100mm (3.9") | 125mm (4.9") | 540 | ITG-JC40S-100 |
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| JC40S/125 | 125mm (4.9") | 150mm (5.9") | 600 | ITG-JC40S-125 |
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| * For 1 filter. To calculate HP rating for 2 filters, multiply the rating shown by 1.7. |
Sold individually. Each element includes three quick-release fasteners. Baseplate sold separately.
Note: ITG filters are supplied dry and must be oiled prior to use. ITG recommends the use of Rock Oil Eco Foam Air Filter Oil (Part No. 3818-001, sold separately). Extensive testing of Rock Oil against other foam filter oils has shown that ITG filters treated with Rock Oil actually outlasted filters treated with other oils (including brands previously recommended by ITG)!
