Spectre Performance 81403 Mass Air Flow Sensor Adapter<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Allows for 4 inch power adder component/filter use</li><li>For engines with MAF sensors and 4 inch openings</li><li>Allows a 4 inch air filter or intake tube or coupler to be mounted directly to MAF</li><li>Easy to install</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41aqdKJihfL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/411Q11MPYSL.jpg" noproxy>