--- product_id: 82251974 title: "4-0300 Symposer Delete with Pressure Port compatible with 2013-2018 Ford Focus ST ST250" brand: "cfm performance" price: "£32.88" currency: GBP in_stock: false reviews_count: 8 category: "Cfm Performance" url: https://www.desertcart.co.uk/products/82251974-4-0300-symposer-delete-with-pressure-port-compatible-with-2013 store_origin: GB region: Great Britain --- # Bolt-on ease Billet aluminum build All hardware included 4-0300 Symposer Delete with Pressure Port compatible with 2013-2018 Ford Focus ST ST250 **Brand:** cfm performance **Price:** £32.88 **Availability:** ❌ Out of Stock ## Summary > 🚗 Silence the noise, amplify your drive. ## Quick Answers - **What is this?** 4-0300 Symposer Delete with Pressure Port compatible with 2013-2018 Ford Focus ST ST250 by cfm performance - **How much does it cost?** £32.88 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/82251974-4-0300-symposer-delete-with-pressure-port-compatible-with-2013) ## Best For - cfm performance enthusiasts ## Why This Product - Trusted cfm performance brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Noise Control Mastery:** Eliminate the annoying factory symposer whistling and unwanted engine noise piping for a cleaner, more refined cabin sound. - • **Integrated Pressure Port:** Built-in 1/8" NPT pressure port for precise boost and vacuum monitoring—track your ride’s performance like a pro. - • **Reversible & Complete Kit:** Includes everything you need—o-ring, firewall plug, zip tie, and fittings—with easy reversion to factory setup if desired. - • **Effortless Bolt-On Upgrade:** Transform your Focus ST with a simple, no-fuss installation that fits perfectly using factory hardware. - • **Premium Billet Aluminum Durability:** Crafted from high-grade billet aluminum for lightweight strength and long-lasting performance. ## Overview The CFM Performance 4-0300 Symposer Delete is a precision billet aluminum upgrade for 2013-2018 Ford Focus ST models, designed to eliminate factory symposer noise while providing a built-in pressure port for boost/vacuum reference. This easy bolt-on kit includes all necessary hardware and maintains compatibility with factory components, offering a clean, reversible modification that enhances your driving experience and cabin comfort. ## Description CFM Performance Focus ST symposer delete with pressure port. One of the simplest mods for the Focus ST and eliminates the factory symposer and the "piped in" engine sound to the passenger cabin. We even feature a 1/8" npt pressure port for boost/vacuum reference and can easily be reversed back to factory equipment, if need be. Comes with symposer delete billet aluminum plate, new o-ring, firewall plug, zip tie for harness, 1/8" npt plug, and black nylon 1/8" NPT to 3/16" Hose Barb Fitting. - Easy bolt on installation - All necessary hardware included - Billet Aluminum construction - Utilizes factory hardware Review: Good quality, works great, and great price. - Quality part, great instructions, and got rid of that awful whistling on my 2017 Focus ST after my Green filter install. Easy to install! Review: Super easy install. Works as intended. - Works as intended super easy install. Robo flutter worries me a bit only because it's not clear if it's harmful, but I love the sound. ## Features - Easy bolt on installation - All necessary hardware included - Billet Aluminum construction - Utilizes factory hardware ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00ZDWAGVI | | Best Sellers Rank | #633,988 in Automotive ( See Top 100 in Automotive ) #12,782 in Automotive Emission & Exhaust Products | | Brand | CFM Performance | | Customer Reviews | 4.4 4.4 out of 5 stars (219) | | Date First Available | June 10, 2015 | | Is Discontinued By Manufacturer | No | | Item Weight | 4 ounces | | Item model number | CFM-4-0300 | | Manufacturer | CFM Performance | | Manufacturer Part Number | CFM-4-0300 | ## Images ![4-0300 Symposer Delete with Pressure Port compatible with 2013-2018 Ford Focus ST ST250 - Image 1](https://m.media-amazon.com/images/I/51aD-r-jj1L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good quality, works great, and great price. *by S***L on March 25, 2021* Quality part, great instructions, and got rid of that awful whistling on my 2017 Focus ST after my Green filter install. Easy to install! ### ⭐⭐⭐⭐⭐ Super easy install. Works as intended. *by E***N on July 10, 2021* Works as intended super easy install. Robo flutter worries me a bit only because it's not clear if it's harmful, but I love the sound. ### ⭐⭐⭐⭐ easy install. Only 2 gripes is I wish it ... *by M***L on May 28, 2017* As deacribed, easy install. Only 2 gripes is I wish it came with the paste or tape to put on the threads of the plug or valve. The other thing is I wish the valve was metal not plastic. ## Frequently Bought Together - CFM Performance 4-0300 Symposer Delete with Pressure Port compatible with 2013-2018 Ford Focus ST ST250 - Motul Multi DCTF - Dual Clutch Transmission Fluid 1L (Pack of 2) - Green Filter 7159 Green High Performance Air Filter --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/82251974-4-0300-symposer-delete-with-pressure-port-compatible-with-2013](https://www.desertcart.co.uk/products/82251974-4-0300-symposer-delete-with-pressure-port-compatible-with-2013) --- *Product available on Desertcart Great Britain* *Store origin: GB* *Last updated: 2026-04-22*