--- product_id: 364247778 title: "Flowmaster 42583 80 Series Muffler - 2.50 Offset IN/2.50 Dual OUT - Aggressive Sound" brand: "flowmaster" price: "628 zł" currency: PLN in_stock: false url: https://www.desertcart.pl/products/364247778-flowmaster-42583-80-series-muffler-2-50-offset-in-2 store_origin: PL region: Poland --- # Aggressive muscle car sound 2.5 inch dual outlet size MIG welded for durability Flowmaster 42583 80 Series Muffler - 2.50 Offset IN/2.50 Dual OUT - Aggressive Sound **Brand:** flowmaster **Price:** 628 zł **Availability:** ❌ Out of Stock ## Summary > 🔥 Turn heads and drop jaws with every rev! ## Quick Answers - **What is this?** Flowmaster 42583 80 Series Muffler - 2.50 Offset IN/2.50 Dual OUT - Aggressive Sound by flowmaster - **How much does it cost?** 628 zł with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/364247778-flowmaster-42583-80-series-muffler-2-50-offset-in-2) ## 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 - • **Built to Last:** 16-gauge aluminized steel with MIG welding ensures maximum durability and long-lasting performance. - • **Precision Fit:** 2.50 inch offset inlet and dual 2.50 inch outlets designed for seamless cross-flow applications. - • **Unleash the Roar:** Aggressive exterior and interior exhaust tone that commands attention on every drive. - • **Muscle Car Heritage:** Perfect replacement for Camaros & Firebirds with transverse mufflers, preserving iconic sound and style. - • **Plug & Play Installation:** No assembly required—upgrade your ride effortlessly and join the elite sound club. ## Overview The Flowmaster 42583 80 Series Muffler features a cross-flow design optimized for transverse mounting behind the rear end, delivering an aggressive muscle car sound both inside and outside your vehicle. Constructed from durable 16-gauge aluminized steel and fully MIG welded, it offers a robust build with a 2.50 inch offset inlet and dual 2.50 inch outlets. Ideal for Camaro and Firebird replacements, this muffler combines iconic tone with reliable performance and easy installation. ## Description The 80 series is a cross-flow design for applications where the muffler is mounted transversely behind the rear end. Delivering an aggressive muscle car sound both inside and outside the vehicle, this is an excellent replacement for Camaros & Firebirds with transverse mufflers. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability. ## Features - Aggressive Sound Exterior Exhaust Tone - Noticeable interior resonance - The original two chamber design - Cross Flow Applications - MIG welded for maximum durability ## Technical Specifications | Specification | Value | |---------------|-------| | Brand | Flowmaster | | Item dimensions L x W x H | 62.5 x 24.9 x 11.4 Centimeters | | Vehicle Service Type | Car | | Shape | Oval | | Outlet Connection Size | 2.5 Inches | | UPC | 700042010363 | | Manufacturer | Flowmaster | | Global Trade Identification Number | 00700042010363 | | OEM Part Number | 42583 | | Model | 42583 | | Product Dimensions | 62.48 x 24.89 x 11.43 cm; 5.15 kg | | Item model number | 42583 | | Exterior | Painted | | Manufacturer Part Number | 42583 | | Volume | 1097 Cubic Inches | | Colour | Black | | Assembly Required | No | | Item Weight | 5 kg 150 g | ## Product Details - **Brand:** Flowmaster - **Item dimensions L x W x H:** 62.5 x 24.9 x 11.4 Centimeters - **Vehicle Service Type:** Car - **Shape:** Oval - **Outlet Connection Size:** 2.5 Inches ## Images ![Flowmaster 42583 80 Series Muffler - 2.50 Offset IN/2.50 Dual OUT - Aggressive Sound - Image 1](https://m.media-amazon.com/images/I/61AJV+LC3pL.jpg) ![Flowmaster 42583 80 Series Muffler - 2.50 Offset IN/2.50 Dual OUT - Aggressive Sound - Image 2](https://m.media-amazon.com/images/I/71G82MhZycL.jpg) ![Flowmaster 42583 80 Series Muffler - 2.50 Offset IN/2.50 Dual OUT - Aggressive Sound - Image 3](https://m.media-amazon.com/images/I/81GO16-jlnL.jpg) ![Flowmaster 42583 80 Series Muffler - 2.50 Offset IN/2.50 Dual OUT - Aggressive Sound - Image 4](https://m.media-amazon.com/images/I/81sBL1tlFWL.jpg) ![Flowmaster 42583 80 Series Muffler - 2.50 Offset IN/2.50 Dual OUT - Aggressive Sound - Image 5](https://m.media-amazon.com/images/I/91qB5HcWqBL.jpg) --- ## 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/364247778-flowmaster-42583-80-series-muffler-2-50-offset-in-2](https://www.desertcart.pl/products/364247778-flowmaster-42583-80-series-muffler-2-50-offset-in-2) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-04-25*