--- product_id: 51568533 title: "Roush 421127 Exhaust Kit" brand: "roush" price: "17745 zł" currency: PLN in_stock: true reviews_count: 5 category: "Roush" url: https://www.desertcart.pl/products/51568533-roush-421127-exhaust-kit store_origin: PL region: Poland --- # Durable chrome-flashed stainless steel Aggressive, drone-free sound Boosts horsepower & airflow Roush 421127 Exhaust Kit **Brand:** roush **Price:** 17745 zł **Availability:** ✅ In Stock ## Summary > 🏁 Make your Mustang the soundtrack of the street. ## Quick Answers - **What is this?** Roush 421127 Exhaust Kit by roush - **How much does it cost?** 17745 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/51568533-roush-421127-exhaust-kit) ## Best For - roush enthusiasts ## Why This Product - Trusted roush brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Effortless Upgrade:** Direct bolt-on fit with factory mounting points and included hardware for a smooth installation. - • **Power Meets Precision:** Increases horsepower and airflow for that extra edge on the road. - • **Turn Heads, Earn Respect:** ROUSH embossed tips signal serious performance—expect compliments and envious glances everywhere you go. - • **Unleash Your Mustang’s Roar:** Open-chamber muffler design delivers a uniquely aggressive sound without annoying drone at cruising speeds. - • **Built to Last, Shine to Impress:** 304 stainless steel round tips with advanced chrome flashing resist heat discoloration and cracking. ## Overview The ROUSH 421127 Exhaust Kit is a premium axle-back system designed specifically for 2011-2014 Mustang GT and 2011-2012 GT500 models. Featuring an open-chamber muffler for aggressive yet refined sound, it boosts horsepower and airflow while eliminating in-cabin drone. Crafted from durable 304 stainless steel with heat-resistant chrome flashing, it offers long-lasting style and performance. Easy to install with factory mounting points and hardware included, this exhaust kit transforms your Mustang’s presence both audibly and visually. ## Description The ROUSH Axle-Back Mustang Exhaust Kit with Round Tips, designed to fit the 2011-2014 Mustang GT and 2011-2012 Mustang GT500, is an innovative exhaust system from ROUSH that features an open-chambered designed muffler (as opposed to conventional fiberglass-packing). The result is an aggressive sound that is unique to ROUSH, increased longevity (with no fiberglass packing), and increased horsepower and with additional airflow. Another added benefit of this system is the lack of the in-cockpit boom normally found with performance exhaust systems at cruising speeds. Not only does this system sound awesome, it looks great too. The round tips are made from high-quality 304 stainless steel and are finished with a chrome flashing process, and are embossed with the ROUSH logo on the end. This will let people know your Mustang roars, and lets them know you mean business. Conventional chrome plating uses layers of bonded chemicals to achieve its shiny appearance, which are susceptible to cracking and flaking especially when exposed to high temperatures (like exhaust produces). However, the chrome flashing used in this system is bonded micro-porously to the metal surface, and is as a result impervious to cracking from localized damage. This method of chroming is also resistant to heat color change. This exhaust kit mounts to the factory mounting points, and includes all necessary hardware and instructions. This makes for easy installation to get you back on the road in no time. Review: Sound of this exhaust is excellent and aggressive. My car finally sounds the way a 400+ HP car should. I listened to many video clips of different exhausts. This one definitely had best sound for the buck (with no drone). I am very happy with it. Its loud when you want it to be (but not too loud) and quiet enough when you are coasting. Installation took longer than expected on my 2011 Mustang GT. Most comments on web said about 1 hour. Took me 2 1/2 hours. I followed the instructions, but could not slide out the mid-pipe (muffler support bracket bottomed out when sliding back, limiting travel). I ended up loosening the mid-pipe clamp, and then the clamp near the muffler. Was able to remove right side muffler with no problem (little elbow grease). Left side I had to actually remove the muffler hanging bracket (only 3 bolts). Installation was much easier. This would have been a major PITA if I didn't have a hoist. I look forward every time to starting up my car now. :) UPDATE: 2.5 Years later Still loving this exhaust. No issues and sounding great. Beware, if you buy this you may get a lot of random people throwing the love for the beautiful sounds your car makes! :) Review: I can't emphasize how amazing this exhaust is. I just wanted something to replace my stock on my 2014 Mustang GT. I wanted it to sound like a Mustang. Well when I first fired it up, it made me nervous as it sounded really loud. Well after a week or so I realize it growls when you accelerate and depending on how fast, but it is barely louder than stock at a cruising speed. I haven't been on any long trips yet but I can't see the sound being a problem at all. I have an automatic but I do use the shifting button often and I can keep the sound up if I keep the gears down of course. I love it and would recommend to anyone. I think you can get louder, but around here it would likely get me a ticket if it was louder. ## Features - Product Type: Auto Part - Package Quantity: 1 - Package Dimensions: 39.624 cms (L) x 61.722 cms (W) x 98.044 cms (H) - Country Of Origin: China ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00442G23Y | | Automotive Fit Type | Vehicle Specific Fit | | Brand Name | Roush | | Compatible with Vehicle Type | Car | | Customer Reviews | 4.8 4.8 out of 5 stars (83) | | Global Trade Identification Number | 00844764211278 | | Item Dimensions | 66 x 61 x 30.5 centimetres | | Item Shape | Round | | Item Weight | 28 Pounds | | Manufacturer | Roush | | Manufacturer Part Number | 421127 | | Material Type | Stainless Steel | | Model Number | 421127 | | OEM Equivalent Part Number | 421127 | | UPC | 844764211278 | ## Product Details - **Brand:** Roush - **Item dimensions L x W x H:** 66 x 61 x 30.5 centimetres - **Item weight:** 28 Pounds - **Material:** Stainless Steel - **Vehicle service type:** Car ## Images ![Roush 421127 Exhaust Kit - Image 1](https://m.media-amazon.com/images/I/51kDavk1C8L.jpg) ![Roush 421127 Exhaust Kit - Image 2](https://m.media-amazon.com/images/I/41+pyko7wPL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by M***. on 14 May 2012* Sound of this exhaust is excellent and aggressive. My car finally sounds the way a 400+ HP car should. I listened to many video clips of different exhausts. This one definitely had best sound for the buck (with no drone). I am very happy with it. Its loud when you want it to be (but not too loud) and quiet enough when you are coasting. Installation took longer than expected on my 2011 Mustang GT. Most comments on web said about 1 hour. Took me 2 1/2 hours. I followed the instructions, but could not slide out the mid-pipe (muffler support bracket bottomed out when sliding back, limiting travel). I ended up loosening the mid-pipe clamp, and then the clamp near the muffler. Was able to remove right side muffler with no problem (little elbow grease). Left side I had to actually remove the muffler hanging bracket (only 3 bolts). Installation was much easier. This would have been a major PITA if I didn't have a hoist. I look forward every time to starting up my car now. :) UPDATE: 2.5 Years later Still loving this exhaust. No issues and sounding great. Beware, if you buy this you may get a lot of random people throwing the love for the beautiful sounds your car makes! :) ### ⭐⭐⭐⭐⭐ Review *by K***N on 15 March 2019* I can't emphasize how amazing this exhaust is. I just wanted something to replace my stock on my 2014 Mustang GT. I wanted it to sound like a Mustang. Well when I first fired it up, it made me nervous as it sounded really loud. Well after a week or so I realize it growls when you accelerate and depending on how fast, but it is barely louder than stock at a cruising speed. I haven't been on any long trips yet but I can't see the sound being a problem at all. I have an automatic but I do use the shifting button often and I can keep the sound up if I keep the gears down of course. I love it and would recommend to anyone. I think you can get louder, but around here it would likely get me a ticket if it was louder. ### ⭐⭐⭐⭐⭐ Review *by A***R on 27 August 2021* Shipped sooner then showed with purchase 👍 Installed same day as it arrived, was easy install. ## Frequently Bought Together - Roush 421127 Exhaust Kit - AUCELI Exhaust Hanger Removal Tool, Rubber Bracket and Exhaust Hanger Separation Hanger Removal Pliers, Muffler Hanger Removal Tool, Universal Vehicle Accessories for Car, SUV, Trunk - K&N Cold Air Intake System: High-Flow Air-Filter, Increase Performance & Horsepower: Compatible with 2011-2014 FORD F150, 57-2581 --- ## 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.pl/products/51568533-roush-421127-exhaust-kit](https://www.desertcart.pl/products/51568533-roush-421127-exhaust-kit) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-05-03*