{"id":1816,"date":"2026-10-21T09:42:33","date_gmt":"2026-10-21T07:42:33","guid":{"rendered":"https:\/\/duegengineering.com\/prodotto\/kit-aspirazione-maggiorato-per-ducati-streetfighter-v4-2025\/"},"modified":"2026-10-27T11:32:40","modified_gmt":"2026-10-27T10:32:40","slug":"kit-aspirazione-maggiorato-per-ducati-streetfighter-v4-2025","status":"publish","type":"product","link":"https:\/\/duegengineering.com\/en\/product\/kit-aspirazione-maggiorato-per-ducati-streetfighter-v4-2025\/","title":{"rendered":"Enlarged Airbox Lid for Ducati Streetfighter V4 \/ V4 S (2025+) \u2013 Filter not included"},"content":{"rendered":"<p><strong>In short<\/strong><\/p>\n<ul>\n<li><strong>What it is:<\/strong> the 2G Engineering enlarged intake duct that replaces the stock airbox lid on 1103 cc Ducati Streetfighter V4 from 2025 onwards (V4, V4 S). Filter not included.<\/li>\n<li><strong>What it fixes:<\/strong> snatchy throttle response and weak midrange pull.<\/li>\n<li><strong>Result:<\/strong> a big midrange torque increase and much smoother power delivery, with the stock ECU (measured on the 2020-2024 Streetfighter V4).<\/li>\n<li><strong>Plug &amp; Play and reversible:<\/strong> fits the stock airbox with the stock filter or an aftermarket sport filter.<\/li>\n<\/ul>\n<div class=\"race-only-notice\" style=\"border: 1px solid #777;border-left: 4px solid #d32f2f;padding: 12px 16px;margin: 1em 0\">\n<p><strong>\u26a0\ufe0f FOR RACE USE ONLY<\/strong><\/p>\n<p>This product is intended exclusively for competition use on closed circuits. It is not approved for road use: use on public roads is not permitted.<\/p>\n<\/div>\n<h2>Snatchy throttle and weak midrange on the Streetfighter V4: where they come from<\/h2>\n<p>The 1103 cc Desmosedici Stradale V4 is a race engine, but on the road the stock Streetfighter V4 has a few weak spots: <strong>snatchy throttle response<\/strong> at low speed, in roundabouts and in traffic, revs that struggle to stay steady at part throttle, and <strong>midrange pull<\/strong> that feels less full than you would expect, right where you ride most on the road.<\/p>\n<p>A big part of the problem is how air gets into the airbox: the stock lid that holds the filter lets air in through a few small openings, designed mainly to meet European homologation noise limits.<\/p>\n<h2>Why changing just the air filter is not enough<\/h2>\n<p>Many Ducati riders start by fitting a <strong>sport air filter for the Streetfighter V4<\/strong>. The problem is that the filter works behind the same stock lid: if air can't reach the filter, a more free-flowing filter changes very little. It's like having a marathon runner's lungs and breathing through a straw.<\/p>\n<p><img data-recalc-dims=\"1\" decoding=\"async\" width=\"2560\" height=\"1440\" data-attachment-id=\"1732\" data-permalink=\"https:\/\/duegengineering.com\/en\/?attachment_id=1732\" data-orig-file=\"https:\/\/i0.wp.com\/duegengineering.com\/wp-content\/uploads\/2026\/10\/confronto-aspirazione-SFV4-originale-vs-2G.png?fit=2560%2C1440&amp;ssl=1\" data-orig-size=\"2560,1440\" data-comments-opened=\"1\" data-image-title=\"confronto-aspirazione-SFV4-originale-vs-2G\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/duegengineering.com\/wp-content\/uploads\/2026\/10\/confronto-aspirazione-SFV4-originale-vs-2G.png?fit=1024%2C576&amp;ssl=1\" class=\"aligncenter size-large wp-image-1732 lazyload\" data-src=\"https:\/\/i0.wp.com\/duegengineering.com\/wp-content\/uploads\/2026\/10\/confronto-aspirazione-SFV4-originale-vs-2G.png?resize=2560%2C1440&#038;ssl=1\" alt=\"Confronto tra la sezione di passaggio dell&apos;aria del coperchio airbox originale della Ducati Streetfighter V4 e del condotto maggiorato 2G Engineering\" data-srcset=\"https:\/\/i0.wp.com\/duegengineering.com\/wp-content\/uploads\/2026\/10\/confronto-aspirazione-SFV4-originale-vs-2G.png?w=2560&amp;ssl=1 2560w, https:\/\/i0.wp.com\/duegengineering.com\/wp-content\/uploads\/2026\/10\/confronto-aspirazione-SFV4-originale-vs-2G.png?resize=300%2C169&amp;ssl=1 300w, https:\/\/i0.wp.com\/duegengineering.com\/wp-content\/uploads\/2026\/10\/confronto-aspirazione-SFV4-originale-vs-2G.png?resize=1024%2C576&amp;ssl=1 1024w, https:\/\/i0.wp.com\/duegengineering.com\/wp-content\/uploads\/2026\/10\/confronto-aspirazione-SFV4-originale-vs-2G.png?resize=768%2C432&amp;ssl=1 768w, https:\/\/i0.wp.com\/duegengineering.com\/wp-content\/uploads\/2026\/10\/confronto-aspirazione-SFV4-originale-vs-2G.png?resize=1536%2C864&amp;ssl=1 1536w, https:\/\/i0.wp.com\/duegengineering.com\/wp-content\/uploads\/2026\/10\/confronto-aspirazione-SFV4-originale-vs-2G.png?resize=2048%2C1152&amp;ssl=1 2048w, https:\/\/i0.wp.com\/duegengineering.com\/wp-content\/uploads\/2026\/10\/confronto-aspirazione-SFV4-originale-vs-2G.png?resize=18%2C10&amp;ssl=1 18w, https:\/\/i0.wp.com\/duegengineering.com\/wp-content\/uploads\/2026\/10\/confronto-aspirazione-SFV4-originale-vs-2G.png?resize=600%2C338&amp;ssl=1 600w\" data-sizes=\"auto\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 2560px; --smush-placeholder-aspect-ratio: 2560\/1440;\" data-original-sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/p>\n<h2>The solution: 2G Engineering Intake for Streetfighter V4<\/h2>\n<p>The enlarged lid replaces the factory one that holds the filter with a smooth-flow duct that <strong>more than doubles the air flow area<\/strong>: instead of the small stock openings there is a single wide inlet that feeds air across the whole filter surface. It works with the stock filter and with OEM-size aftermarket sport filters. Every part is designed and made in Soliera (Modena), in the heart of the Motor Valley, from carbon-fibre-reinforced PPA.<\/p>\n<h2>What changes on the road<\/h2>\n<ul>\n<li><strong>More midrange torque:<\/strong> a big torque increase right in the rev range you use most on the road.<\/li>\n<li><strong>Much smoother power delivery:<\/strong> throttle response becomes progressive and predictable, even in traffic and slow corners.<\/li>\n<li><strong>Intake sound:<\/strong> deeper and fuller, especially from the midrange up.<\/li>\n<li><strong>Free choice of filter:<\/strong> works with the stock filter and with OEM-size aftermarket sport filters.<\/li>\n<\/ul>\n<p>We haven't published the Streetfighter V4 dyno chart yet: we'll add it to this page as soon as it's ready.<\/p>\n<h2>Which version to choose<\/h2>\n<table style=\"width: 100%;border-collapse: collapse;margin: 1em 0\">\n<thead>\n<tr>\n<th style=\"border: 1px solid #777;padding: 10px;background: #1f1f1f;color: #ffffff;text-align: left\">Version<\/th>\n<th style=\"border: 1px solid #777;padding: 10px;background: #1f1f1f;color: #ffffff;text-align: left\">What's included<\/th>\n<th style=\"border: 1px solid #777;padding: 10px;background: #1f1f1f;color: #ffffff;text-align: left\">Who it's for<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border: 1px solid #777;padding: 10px\"><a href=\"\/en\/product\/kit-aspirazione-maggiorato-con-filtro-aria-sportivo-per-ducati-streetfighter-v4-2025\/\">Kit with 2G sport air filter<\/a><\/td>\n<td style=\"border: 1px solid #777;padding: 10px\">Enlarged intake duct + 2G dry polyester filter<\/td>\n<td style=\"border: 1px solid #777;padding: 10px\">Riders still running the stock paper filter<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #777;padding: 10px\"><strong>Enlarged airbox lid only<\/strong> (this page)<\/td>\n<td style=\"border: 1px solid #777;padding: 10px\">Enlarged intake duct, filter not included<\/td>\n<td style=\"border: 1px solid #777;padding: 10px\">Riders who already have an aftermarket sport filter or want to reuse their own<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #777;padding: 10px\">2G sport air filter only<\/td>\n<td style=\"border: 1px solid #777;padding: 10px\">2G dry polyester filter, washable<\/td>\n<td style=\"border: 1px solid #777;padding: 10px\">Coming soon<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Compatibility<\/h2>\n<p><strong>Ducati Streetfighter V4 and V4 S 1103 cc, 2025 onwards.<\/strong> It fits the stock airbox with no modifications. For the 2020-2024 Streetfighter V4 there is a <a href=\"\/en\/product\/kit-aspirazione-maggiorato-per-ducati-streetfighter-v4\/\">dedicated version<\/a>. Not compatible with the Streetfighter V2. Compatible with the original filter and original-size aftermarket sport air filters.<\/p>\n<h2>Installation<\/h2>\n<p>Installation is <strong>Plug &amp; Play<\/strong>: the two half-shells bolt together to form the new duct and filter support, replacing the stock airbox lid. Nothing on the bike is cut or drilled. To remove the stock lid, we recommend cutting the rubber joint between its two half-shells, in a spot hidden behind the headlight: the lid stays reusable and you can go back to stock at any time. Fitting time: about 30 minutes.<\/p>\n<p>\ud83d\udc49 <a href=\"https:\/\/duegengineering.com\/wp-content\/uploads\/2026\/10\/Manuale-montaggio-Streetfighter-V4.pdf\" target=\"_blank\" rel=\"noopener\"><strong>Installation manual (PDF)<\/strong><\/a><br \/>\n<!-- VIDEO MONTAGGIO: inserire qui l'iframe --><\/p>\n<h2>Technical specifications<\/h2>\n<table style=\"width: 100%;border-collapse: collapse;margin: 1em 0\">\n<tbody>\n<tr>\n<th style=\"border: 1px solid #777;padding: 10px;background: #1f1f1f;color: #ffffff;text-align: left;width: 35%\">Compatible models<\/th>\n<td style=\"border: 1px solid #777;padding: 10px\">Ducati Streetfighter V4, V4 S<\/td>\n<\/tr>\n<tr>\n<th style=\"border: 1px solid #777;padding: 10px;background: #1f1f1f;color: #ffffff;text-align: left\">Years<\/th>\n<td style=\"border: 1px solid #777;padding: 10px\">2025 onwards (1103 cc)<\/td>\n<\/tr>\n<tr>\n<th style=\"border: 1px solid #777;padding: 10px;background: #1f1f1f;color: #ffffff;text-align: left\">Material<\/th>\n<td style=\"border: 1px solid #777;padding: 10px\">Carbon-fibre-reinforced PPA, professional 3D printing<\/td>\n<\/tr>\n<tr>\n<th style=\"border: 1px solid #777;padding: 10px;background: #1f1f1f;color: #ffffff;text-align: left\">Air filter<\/th>\n<td style=\"border: 1px solid #777;padding: 10px\">Air filter not included. Compatible with the stock filter and with OEM-size aftermarket sport filters<\/td>\n<\/tr>\n<tr>\n<th style=\"border: 1px solid #777;padding: 10px;background: #1f1f1f;color: #ffffff;text-align: left\">Result<\/th>\n<td style=\"border: 1px solid #777;padding: 10px\">Big midrange torque increase, smoother power delivery (seen on the 2020-2024 Streetfighter V4, dyno chart coming soon)<\/td>\n<\/tr>\n<tr>\n<th style=\"border: 1px solid #777;padding: 10px;background: #1f1f1f;color: #ffffff;text-align: left\">Remap<\/th>\n<td style=\"border: 1px solid #777;padding: 10px\">Not needed with stock exhaust or catalysed exhausts<\/td>\n<\/tr>\n<tr>\n<th style=\"border: 1px solid #777;padding: 10px;background: #1f1f1f;color: #ffffff;text-align: left\">Installation<\/th>\n<td style=\"border: 1px solid #777;padding: 10px\">Plug &amp; Play on the stock airbox, reversible, no drilling on the bike<\/td>\n<\/tr>\n<tr>\n<th style=\"border: 1px solid #777;padding: 10px;background: #1f1f1f;color: #ffffff;text-align: left\">Installation time<\/th>\n<td style=\"border: 1px solid #777;padding: 10px\">About 30 minutes<\/td>\n<\/tr>\n<tr>\n<th style=\"border: 1px solid #777;padding: 10px;background: #1f1f1f;color: #ffffff;text-align: left\">Package contents<\/th>\n<td style=\"border: 1px solid #777;padding: 10px\">Two intake duct half-shells, mounting hardware. Air filter not included<\/td>\n<\/tr>\n<tr>\n<th style=\"border: 1px solid #777;padding: 10px;background: #1f1f1f;color: #ffffff;text-align: left\">Made in<\/th>\n<td style=\"border: 1px solid #777;padding: 10px\">Italy, Soliera (Modena)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Frequently asked questions<\/h2>\n<details style=\"border: 1px solid #777;border-radius: 6px;padding: 12px 16px;margin: 8px 0\">\n<summary style=\"cursor: pointer;font-weight: bold\">Is the air filter included?<\/summary>\n<p>No. This version includes only the enlarged intake duct. If you also want the filter, choose the <a href=\"\/en\/product\/kit-aspirazione-maggiorato-con-filtro-aria-sportivo-per-ducati-streetfighter-v4-2025\/\">kit with 2G sport air filter<\/a>.<\/p>\n<\/details>\n<details style=\"border: 1px solid #777;border-radius: 6px;padding: 12px 16px;margin: 8px 0\">\n<summary style=\"cursor: pointer;font-weight: bold\">Can I use the stock air filter?<\/summary>\n<p>Yes. The enlarged lid works with the stock Streetfighter V4 filter: the improvement comes from the wider air inlet.<\/p>\n<\/details>\n<details style=\"border: 1px solid #777;border-radius: 6px;padding: 12px 16px;margin: 8px 0\">\n<summary style=\"cursor: pointer;font-weight: bold\">Does it work with aftermarket sport filters?<\/summary>\n<p>Yes, with OEM-size aftermarket sport air filters.<\/p>\n<\/details>\n<details style=\"border: 1px solid #777;border-radius: 6px;padding: 12px 16px;margin: 8px 0\">\n<summary style=\"cursor: pointer;font-weight: bold\">Do I need to remap the ECU?<\/summary>\n<p>No, with the stock exhaust or with aftermarket exhausts that keep the catalytic converter. With a decat race exhaust you need a dedicated map anyway, as with any exhaust of that kind.<\/p>\n<\/details>\n<details style=\"border: 1px solid #777;border-radius: 6px;padding: 12px 16px;margin: 8px 0\">\n<summary style=\"cursor: pointer;font-weight: bold\">Is it better to change the exhaust or the intake?<\/summary>\n<p>They do different jobs: the intake works on how much air gets into the engine, the exhaust on how the gases get out. Our kit is designed to deliver results with the stock exhaust and costs a fraction of a full exhaust system.<\/p>\n<\/details>\n<details style=\"border: 1px solid #777;border-radius: 6px;padding: 12px 16px;margin: 8px 0\">\n<summary style=\"cursor: pointer;font-weight: bold\">Does it fit all Streetfighter V4 versions?<\/summary>\n<p>This page is for the 1103 cc Streetfighter V4 and V4 S from 2025 onwards. For the 2020-2024 Streetfighter V4 (V4, V4 S, SP, SP2, Lamborghini) there is a <a href=\"\/en\/product\/kit-aspirazione-maggiorato-per-ducati-streetfighter-v4\/\">dedicated version<\/a>.<\/p>\n<\/details>\n<details style=\"border: 1px solid #777;border-radius: 6px;padding: 12px 16px;margin: 8px 0\">\n<summary style=\"cursor: pointer;font-weight: bold\">Can I put the bike back to stock?<\/summary>\n<p>Yes. Nothing on the bike is cut or drilled. Cutting the rubber joint of the stock lid, which we recommend for a quicker removal, does not stop you refitting it: an interlock holds the two half-shells together and the four screws secure it just as before.<\/p>\n<\/details>\n<details style=\"border: 1px solid #777;border-radius: 6px;padding: 12px 16px;margin: 8px 0\">\n<summary style=\"cursor: pointer;font-weight: bold\">How long does installation take?<\/summary>\n<p>About 30 minutes, with a basic home toolkit.<\/p>\n<\/details>\n<details style=\"border: 1px solid #777;border-radius: 6px;padding: 12px 16px;margin: 8px 0\">\n<summary style=\"cursor: pointer;font-weight: bold\">How long does shipping take?<\/summary>\n<p>All kits are in stock and ship within 24 hours, worldwide. You have 15 days from delivery to return the product if you're not happy with it.<\/p>\n<\/details>\n<p><strong>Let your Streetfighter V4 breathe: add the lid to your cart, we ship within 24 hours.<\/strong><\/p>","protected":false},"excerpt":{"rendered":"<p>Enlarged airbox cover for Ducati Streetfighter V4 (2025+), filter not included. More midrange torque and smoother power delivery. Plug &amp; Play.<\/p>","protected":false},"featured_media":1735,"comment_status":"open","ping_status":"closed","template":"","meta":{"advanced_seo_description":"","jetpack_seo_html_title":"","jetpack_seo_noindex":false,"jetpack_seo_schema_type":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"product_brand":[688637446],"product_cat":[688637457,688637384],"product_tag":[688637412,688637410,688637411,688637413],"class_list":["post-1816","product","type-product","status-publish","has-post-thumbnail","product_brand-2g-engineering","product_cat-streetfighter-v4-2025","product_cat-alll-product","product_tag-aspirazione","product_tag-filtro-aria","product_tag-filtro-aria-racing","product_tag-filtro-poliestere","first","instock","sale","shipping-taxable","purchasable","product-type-simple"],"jetpack_publicize_connections":[],"jetpack_likes_enabled":true,"jetpack_sharing_enabled":true,"jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/duegengineering.com\/en\/wp-json\/wp\/v2\/product\/1816","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/duegengineering.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/duegengineering.com\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/duegengineering.com\/en\/wp-json\/wp\/v2\/comments?post=1816"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/duegengineering.com\/en\/wp-json\/wp\/v2\/media\/1735"}],"wp:attachment":[{"href":"https:\/\/duegengineering.com\/en\/wp-json\/wp\/v2\/media?parent=1816"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/duegengineering.com\/en\/wp-json\/wp\/v2\/product_brand?post=1816"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/duegengineering.com\/en\/wp-json\/wp\/v2\/product_cat?post=1816"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/duegengineering.com\/en\/wp-json\/wp\/v2\/product_tag?post=1816"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}