--- product_id: 219155057 title: "Flowmonster 425403-FM 2-Chamber Muffler" brand: "flowmaster" price: "Rp76617" currency: IDR in_stock: false reviews_count: 9 url: https://www.desertcart.id/products/219155057-flowmonster-425403-fm-2-chamber-muffler store_origin: ID region: Indonesia --- # Aggressive sound output 2-chamber frequency cancellation 16-gauge aluminized steel durability Flowmonster 425403-FM 2-Chamber Muffler **Brand:** flowmaster **Price:** Rp76617 **Availability:** ❌ Out of Stock ## Summary > πŸ”₯ Unleash the beast beneath your ride – sound and strength that can’t be ignored! ## Quick Answers - **What is this?** Flowmonster 425403-FM 2-Chamber Muffler by flowmaster - **How much does it cost?** Rp76617 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.id](https://www.desertcart.id/products/219155057-flowmonster-425403-fm-2-chamber-muffler) ## Best For - flowmaster enthusiasts ## Why This Product - Trusted flowmaster brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Dominate the Road with Roar:** Aggressive exhaust note that commands attention and sets you apart. - β€’ **Built to Last, Welded to Win:** 100% MIG welded aluminized steel construction ensures unmatched strength and longevity. - β€’ **Custom Fit, Effortless Upgrade:** Vehicle-specific fitment means seamless installation and perfect integration. - β€’ **Boost Your Ride’s Performance:** Increases exhaust flow for enhanced throttle response and driving dynamics. - β€’ **Precision Engineered Sound Control:** 2-chamber design cancels annoying high-pitch frequencies for a refined growl. ## Overview The Flowmonster 425403-FM 2-Chamber Muffler delivers a powerful, aggressive exhaust tone by utilizing a 2-chamber internal design that cancels high-pitch frequencies. Crafted from durable 16-gauge aluminized steel and fully MIG welded, it ensures long-lasting strength and performance. Designed for vehicle-specific fitment, it enhances exhaust flow for improved throttle response, making it the perfect upgrade for drivers seeking both sound and durability. ## Description Unleash your Monster with FlowMonster chambered mufflers. Hidden beneath your ride lies a powerful creature destined to dominate. FlowMonster chambered mufflers create an aggressive exhaust note giving a powerful voice to your car/truck/SUV. FlowMonster mufflers are constructed of 16-gauge aluminized steel and are 100% MIG welded for maximum strength and durability. The chambered design cancels out unwanted frequencies with no packing producing an aggressive exhaust note that will not change with time. FlowMonster mufflers are coated with high heat resistant silver paint for an aggressive look under your car. Review: Great quality! - I needed to replace my muffler as it came apart. It was a stamped steel cheapo. I cannot believe the quality for the money of this muffler. Fully welded body and a decently thick gauge steel. This muffler should hold up for a long time. Sounds pretty good as well. A little louder than I wanted, but I am still very happy with my purchase. Review: Sounds good - Sounds good. Would buy again. ## Features - Produces an aggressive sound - 2-Chamber Internal Design Cancels out Annoying High Pitch Frequencies - Increases exhaust flow for increased performance and excellent throttle response - Constructed of durable 16-gauge aluminized steel - 100% MIG welded for maximum strength and durability - Fit type: Vehicle Specific ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07X62LZ4T | | Best Sellers Rank | #380,231 in Automotive ( See Top 100 in Automotive ) #360 in Automotive Replacement Exhaust Mufflers | | Brand Name | Flowmaster | | Compatible with Vehicle Type | Car, Truck | | Configuration | Center/Dual | | Customer Reviews | 4.5 4.5 out of 5 stars (145) | | Included Components | Flowmonster 2-Chamber Small Muffler | | Item Dimensions | 13 x 9 x 4.75 inches | | Item Type Name | Flowmonster 2-Chamber Small Muffler | | Item Weight | 0.1 Kilograms | | Manufacturer | Flowmaster | | Manufacturer Part Number | 425403-FM | | Material Type | Alloy Steel | | Model Number | 425403-FM | | Shape | Oval | | UPC | 090127063279 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** Flowmaster - **Item Weight:** 0.1 Kilograms - **Item dimensions L x W x H:** 13 x 9 x 4.75 inches - **Material:** Alloy Steel - **Vehicle Service Type:** Car, Truck ## Images ![Flowmonster 425403-FM 2-Chamber Muffler - Image 1](https://m.media-amazon.com/images/I/711CoqNH8qL.jpg) ![Flowmonster 425403-FM 2-Chamber Muffler - Image 2](https://m.media-amazon.com/images/I/71Gyl6PlETL.jpg) ![Flowmonster 425403-FM 2-Chamber Muffler - Image 3](https://m.media-amazon.com/images/I/71+ph74SGuL.jpg) ![Flowmonster 425403-FM 2-Chamber Muffler - Image 4](https://m.media-amazon.com/images/I/71J-0tkef3L.jpg) ![Flowmonster 425403-FM 2-Chamber Muffler - Image 5](https://m.media-amazon.com/images/I/61TtSNR7oDL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great quality! *by A***N on September 7, 2024* I needed to replace my muffler as it came apart. It was a stamped steel cheapo. I cannot believe the quality for the money of this muffler. Fully welded body and a decently thick gauge steel. This muffler should hold up for a long time. Sounds pretty good as well. A little louder than I wanted, but I am still very happy with my purchase. ### ⭐⭐⭐⭐⭐ Sounds good *by M***E on February 22, 2026* Sounds good. Would buy again. ### ⭐⭐⭐⭐⭐ Mellow muffler. *by D***E on May 31, 2025* This is a well made muffler and nice welds. Hard to find 2 inlets and 1 outlet for my 2000 dodge 2500. Already installed and really sounds good. ## Frequently Bought Together - Flowmonster 425403-FM 2-Chamber Muffler - Walker 36516 Exhaust System Hanger - 2.5'' Mild Steel Custom Exhaust Kit Tubing Mandrel Bend Pipe Straight & U-Bend 16 Gauge Universal 8PCS --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.id/products/219155057-flowmonster-425403-fm-2-chamber-muffler](https://www.desertcart.id/products/219155057-flowmonster-425403-fm-2-chamber-muffler) --- *Product available on Desertcart Indonesia* *Store origin: ID* *Last updated: 2026-05-13*