{"id":9017,"date":"2021-07-30T15:49:59","date_gmt":"2021-07-30T20:49:59","guid":{"rendered":"https:\/\/www.denniskirk.com\/?p=9017"},"modified":"2022-05-27T12:54:02","modified_gmt":"2022-05-27T17:54:02","slug":"stage-one-air-flow","status":"publish","type":"post","link":"https:\/\/www.denniskirk.com\/blog\/2021\/07\/30\/stage-one-air-flow\/","title":{"rendered":"Stage One Air Flow"},"content":{"rendered":"\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:10%\"><\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:80%\">\n<p>So, you just purchased that new\u2014or at least new to you\u2014V-twin motorcycle. Now let\u2019s assume even though it may be used, it is basically in bone stock condition\u2014meaning stock air cleaner and stock exhaust. Your buddies tell you it sounds like a pooch! We all know we can\u2019t have that, and you start thinking about some upgrades. After all, half the fun of owning a new motorcycle is making it your own\u2014modifying it with the addition of chrome, pegs, etc. My personal favorite is enhancing the performance and sound. And this starts with a new air cleaner and upgraded exhaust. Most people would call this upgrade a \u201cstage one\u201d which as far as I can tell has been derived from dealership accessories catalogs, so for now we just use that moniker.<\/p>\n\n\n\n<p>We all have those friends who are more than willing to tell you their favorite brand of air cleaners or exhaust. So, you may or may not take their advice, and you begin your search. You log-on to <a rel=\"noreferrer noopener\" href=\"https:\/\/www.denniskirk.com\/harley-davidson\/air-cleaners-and-air-filters\" target=\"_blank\">denniskirk.com<\/a> and woah, there is a plethora of different air cleaner styles, shapes, prices, etc. It can be overwhelming. And you\u2019re not even thinking about the exhaust or fuel delivery yet. (Something you\u2019ll also need to address after changing the airflow characteristics of your motor.)<\/p>\n\n\n\n<p>Unless you are a die-hard gear head looking for all out performance, you will likely put appearance at the top of your list. Some like a completely modified, custom look and others prefer the stealth approach that uses the stock cover. Either way, there are many options to choose from. Let\u2019s address what I feel are some important things to consider when purchasing a high flow air cleaner.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:10%\"><\/div>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator is-style-wide\"\/>\n\n\n\n<div style=\"height:15px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-image is-style-rounded\"><figure class=\"aligncenter size-full\"><a href=\"https:\/\/www.denniskirk.com\/trask\/reverse-cut-assault-charge-high-flow-air-cleaner-tm-1021rc.p188977.prd\/188977.sku\" target=\"_blank\" rel=\"noopener\"><img data-recalc-dims=\"1\" fetchpriority=\"high\" decoding=\"async\" width=\"650\" height=\"650\" data-attachment-id=\"9025\" data-permalink=\"https:\/\/www.denniskirk.com\/blog\/2021\/07\/30\/stage-one-air-flow\/trask_aircleaner\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.denniskirk.com\/blog\/wp-content\/uploads\/2021\/07\/Trask_AirCleaner.jpg?fit=650%2C650&amp;ssl=1\" data-orig-size=\"650,650\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Trask_AirCleaner\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.denniskirk.com\/blog\/wp-content\/uploads\/2021\/07\/Trask_AirCleaner.jpg?fit=650%2C650&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/www.denniskirk.com\/blog\/wp-content\/uploads\/2021\/07\/Trask_AirCleaner.jpg?resize=650%2C650&#038;ssl=1\" alt=\"\" class=\"wp-image-9025\" srcset=\"https:\/\/i0.wp.com\/www.denniskirk.com\/blog\/wp-content\/uploads\/2021\/07\/Trask_AirCleaner.jpg?w=650&amp;ssl=1 650w, https:\/\/i0.wp.com\/www.denniskirk.com\/blog\/wp-content\/uploads\/2021\/07\/Trask_AirCleaner.jpg?resize=300%2C300&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.denniskirk.com\/blog\/wp-content\/uploads\/2021\/07\/Trask_AirCleaner.jpg?resize=150%2C150&amp;ssl=1 150w, https:\/\/i0.wp.com\/www.denniskirk.com\/blog\/wp-content\/uploads\/2021\/07\/Trask_AirCleaner.jpg?resize=640%2C640&amp;ssl=1 640w, https:\/\/i0.wp.com\/www.denniskirk.com\/blog\/wp-content\/uploads\/2021\/07\/Trask_AirCleaner.jpg?resize=50%2C50&amp;ssl=1 50w\" sizes=\"(max-width: 650px) 100vw, 650px\" \/><\/a><\/figure><\/div>\n\n\n\n<p class=\"has-text-align-center has-medium-font-size\"><strong><a rel=\"noreferrer noopener\" href=\"https:\/\/www.denniskirk.com\/trask\/reverse-cut-assault-charge-high-flow-air-cleaner-tm-1021rc.p188977.prd\/188977.sku\" target=\"_blank\">TRASK<\/a><\/strong><\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-image is-style-rounded\"><figure class=\"aligncenter size-full\"><img data-recalc-dims=\"1\" decoding=\"async\" width=\"650\" height=\"650\" data-attachment-id=\"9024\" data-permalink=\"https:\/\/www.denniskirk.com\/blog\/2021\/07\/30\/stage-one-air-flow\/ss_aircleaner\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.denniskirk.com\/blog\/wp-content\/uploads\/2021\/07\/SS_AirCleaner.jpg?fit=650%2C650&amp;ssl=1\" data-orig-size=\"650,650\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"S&#038;S_AirCleaner\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.denniskirk.com\/blog\/wp-content\/uploads\/2021\/07\/SS_AirCleaner.jpg?fit=650%2C650&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/www.denniskirk.com\/blog\/wp-content\/uploads\/2021\/07\/SS_AirCleaner.jpg?resize=650%2C650&#038;ssl=1\" alt=\"\" class=\"wp-image-9024\" srcset=\"https:\/\/i0.wp.com\/www.denniskirk.com\/blog\/wp-content\/uploads\/2021\/07\/SS_AirCleaner.jpg?w=650&amp;ssl=1 650w, https:\/\/i0.wp.com\/www.denniskirk.com\/blog\/wp-content\/uploads\/2021\/07\/SS_AirCleaner.jpg?resize=300%2C300&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.denniskirk.com\/blog\/wp-content\/uploads\/2021\/07\/SS_AirCleaner.jpg?resize=150%2C150&amp;ssl=1 150w, https:\/\/i0.wp.com\/www.denniskirk.com\/blog\/wp-content\/uploads\/2021\/07\/SS_AirCleaner.jpg?resize=640%2C640&amp;ssl=1 640w, https:\/\/i0.wp.com\/www.denniskirk.com\/blog\/wp-content\/uploads\/2021\/07\/SS_AirCleaner.jpg?resize=50%2C50&amp;ssl=1 50w\" sizes=\"(max-width: 650px) 100vw, 650px\" \/><\/figure><\/div>\n\n\n\n<p class=\"has-text-align-center has-medium-font-size\"><strong><a rel=\"noreferrer noopener\" href=\"https:\/\/www.denniskirk.com\/s-and-s-cycle\/chrome-air-stinger-stealth-air-cleaner-kit-w-teardrop-cover-170-0717.p1801411.prd\/1801411.sku\" target=\"_blank\">S&amp;S<\/a><\/strong><\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-image is-style-rounded\"><figure class=\"aligncenter size-full\"><a href=\"https:\/\/www.denniskirk.com\/cobra\/black-high-performance-cone-air-intake-kit-606-0100-06b.p189596.prd\/189596.sku\" target=\"_blank\" rel=\"noopener\"><img data-recalc-dims=\"1\" decoding=\"async\" width=\"650\" height=\"650\" data-attachment-id=\"9023\" data-permalink=\"https:\/\/www.denniskirk.com\/blog\/2021\/07\/30\/stage-one-air-flow\/cobra_aircleaner\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.denniskirk.com\/blog\/wp-content\/uploads\/2021\/07\/Cobra_AirCleaner.jpg?fit=650%2C650&amp;ssl=1\" data-orig-size=\"650,650\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Cobra_AirCleaner\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.denniskirk.com\/blog\/wp-content\/uploads\/2021\/07\/Cobra_AirCleaner.jpg?fit=650%2C650&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/www.denniskirk.com\/blog\/wp-content\/uploads\/2021\/07\/Cobra_AirCleaner.jpg?resize=650%2C650&#038;ssl=1\" alt=\"\" class=\"wp-image-9023\" srcset=\"https:\/\/i0.wp.com\/www.denniskirk.com\/blog\/wp-content\/uploads\/2021\/07\/Cobra_AirCleaner.jpg?w=650&amp;ssl=1 650w, https:\/\/i0.wp.com\/www.denniskirk.com\/blog\/wp-content\/uploads\/2021\/07\/Cobra_AirCleaner.jpg?resize=300%2C300&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.denniskirk.com\/blog\/wp-content\/uploads\/2021\/07\/Cobra_AirCleaner.jpg?resize=150%2C150&amp;ssl=1 150w, https:\/\/i0.wp.com\/www.denniskirk.com\/blog\/wp-content\/uploads\/2021\/07\/Cobra_AirCleaner.jpg?resize=640%2C640&amp;ssl=1 640w, https:\/\/i0.wp.com\/www.denniskirk.com\/blog\/wp-content\/uploads\/2021\/07\/Cobra_AirCleaner.jpg?resize=50%2C50&amp;ssl=1 50w\" sizes=\"(max-width: 650px) 100vw, 650px\" \/><\/a><\/figure><\/div>\n\n\n\n<p class=\"has-text-align-center has-medium-font-size\"><strong><a rel=\"noreferrer noopener\" href=\"https:\/\/www.denniskirk.com\/cobra\/black-high-performance-cone-air-intake-kit-606-0100-06b.p189596.prd\/189596.sku\" target=\"_blank\">COBRA<\/a><\/strong><\/p>\n<\/div>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator is-style-wide\"\/>\n\n\n\n<p class=\"has-text-align-center has-medium-font-size\"><a href=\"https:\/\/www.denniskirk.com\/harley-davidson\/air-cleaners-and-air-filters\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>CLICK FOR MORE AIR FILTER OPTIONS<\/strong><\/a><\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:10%\"><\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:80%\">\n<p>Number one would be overall quality in construction and hardware. In my opinion, a well-built air cleaner setup will not only have top quality hardware, but solid construction and engineering that keeps the backing plate screws from being part of the air fuel mixture on top of the piston. A good design is one that will have the outer cover encapsulating the inner backing plate screws so that even if they were to come loose, they could not get into the intake tract.<\/p>\n\n\n\n<p>A few designs use a system that threads through the backing plate and then through the intake to hold the backing plate on. These can vibrate loose and back their way out of the backing plate and on into the combustion chamber causing catastrophic engine damage.<\/p>\n\n\n\n<p>We all know these V-twin bikes have a bit of vibration and trust me I have seen happen. It\u2019s neither pretty, nor inexpensive, when it does.<\/p>\n\n\n\n<p>Another thing to keep in mind is the breather system. Because it relieves crankcase pressure that is built up from expansion, blow by of combustion past the piston rings, and the ever-changing internal pressure from the pistons displacing crankcase volume as they cycle up and down; any air cleaner you choose should have ample passageways for the breather system from the crankcase, to function properly.<\/p>\n\n\n\n<p>&nbsp;You may be asking, \u201cBut what about performance?\u201d I have seen the elbow forward style outperform the others consistently on my dyno, but on a \u201cstage one\u201d setup you would see little variance in the high flow systems. Remember, some air cleaners stick out further than others, so depending whether you have forward or mid-controls, and where your legs are where riding, certain styles may not work for you. But if you purchase an extremely open style make sure it has some sort of rain sock should you be one of those riders who doesn\u2019t mind a little rain.<\/p>\n\n\n\n<p>Lastly, a good, washable air cleaner is a must! One you can clean and re-use at every service will save you money over the long haul. And they for the most part are a high flow design as well so there can potentially be a performance increase.<\/p>\n\n\n\n<p>Now if you are lucky, you have narrowed down your air cleaner choices to a select few. Next, you\u2019ll want to address the exhaust. Are you going the \u201cslip on\u201d muffler only route or do you want a full-system\u2014true duals or maybe a 2-into-1 system that you can build on at a later date?<\/p>\n\n\n\n<p>Watch for my next installment as we discuss the various exhaust styles and how they compare in both appearance but more importantly performance.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:10%\"><\/div>\n<\/div>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>So, you just purchased that new\u2014or at least new to you\u2014V-twin motorcycle. Now let\u2019s assume even though it may be used, it is basically in&hellip;<\/p>\n<p> <a class=\"more-link\" href=\"https:\/\/www.denniskirk.com\/blog\/2021\/07\/30\/stage-one-air-flow\/\">Read more<\/a><\/p>\n","protected":false},"author":32,"featured_media":9053,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[4263,926,878,879,409],"tags":[],"class_list":{"0":"post-9017","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-harley","8":"category-homepage-right","9":"category-motorcycle-how-tos","10":"category-motorcycle-tips","11":"category-powersports"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.8 (Yoast SEO v27.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Stage One Air Flow - Dennis Kirk<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.denniskirk.com\/blog\/2021\/07\/30\/stage-one-air-flow\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Stage One Air Flow\" \/>\n<meta property=\"og:description\" content=\"So, you just purchased that new\u2014or at least new to you\u2014V-twin motorcycle. Now let\u2019s assume even though it may be used, it is basically in&hellip;  Read more\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.denniskirk.com\/blog\/2021\/07\/30\/stage-one-air-flow\/\" \/>\n<meta property=\"og:site_name\" content=\"Dennis Kirk\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/dennis.kirk.fb\" \/>\n<meta property=\"article:published_time\" content=\"2021-07-30T20:49:59+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-05-27T17:54:02+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/i0.wp.com\/www.denniskirk.com\/blog\/wp-content\/uploads\/2021\/07\/main_ac_img.jpg?fit=1200%2C642&ssl=1\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"642\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Bob Thoma\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Bob Thoma\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.denniskirk.com\\\/blog\\\/2021\\\/07\\\/30\\\/stage-one-air-flow\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.denniskirk.com\\\/blog\\\/2021\\\/07\\\/30\\\/stage-one-air-flow\\\/\"},\"author\":{\"name\":\"Bob Thoma\",\"@id\":\"https:\\\/\\\/www.denniskirk.com\\\/blog\\\/#\\\/schema\\\/person\\\/4da5aa8978f2c14253d8c5a6f0277985\"},\"headline\":\"Stage One Air Flow\",\"datePublished\":\"2021-07-30T20:49:59+00:00\",\"dateModified\":\"2022-05-27T17:54:02+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.denniskirk.com\\\/blog\\\/2021\\\/07\\\/30\\\/stage-one-air-flow\\\/\"},\"wordCount\":755,\"commentCount\":3,\"publisher\":{\"@id\":\"https:\\\/\\\/www.denniskirk.com\\\/blog\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.denniskirk.com\\\/blog\\\/2021\\\/07\\\/30\\\/stage-one-air-flow\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/i0.wp.com\\\/www.denniskirk.com\\\/blog\\\/wp-content\\\/uploads\\\/2021\\\/07\\\/main_ac_img.jpg?fit=1200%2C642&ssl=1\",\"articleSection\":[\"Harley\",\"Homepage-right\",\"Motorcycle How To's\",\"Motorcycle Tips\",\"Powersports\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.denniskirk.com\\\/blog\\\/2021\\\/07\\\/30\\\/stage-one-air-flow\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.denniskirk.com\\\/blog\\\/2021\\\/07\\\/30\\\/stage-one-air-flow\\\/\",\"url\":\"https:\\\/\\\/www.denniskirk.com\\\/blog\\\/2021\\\/07\\\/30\\\/stage-one-air-flow\\\/\",\"name\":\"Stage One Air Flow - 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