---
product_id: 616365230
title: "Flowmaster 817942 American Thunder Axle Back Exhaust Kit without Muffler 2.5 Inch 409 Stainless Steel 3 Inch Polished 304 Tip Compatible with 2007-2018 Jeep Wrangler JK 3.6L 3.8L V6 2 and 4 Door"
brand: "flowmaster"
price: "C$25857"
currency: NIO
in_stock: true
url: https://www.desertcart.ni/products/616365230-flowmaster-817942-american-thunder-axle-back-exhaust-kit-without-muffler
store_origin: NI
region: Nicaragua
---

# 5 HP dyno gain 15-min bolt-on install 409 & 304 stainless steel Flowmaster 817942 American Thunder Axle Back Exhaust Kit without Muffler 2.5 Inch 409 Stainless Steel 3 Inch Polished 304 Tip Compatible with 2007-2018 Jeep Wrangler JK 3.6L 3.8L V6 2 and 4 Door

**Brand:** flowmaster
**Price:** C$25857
**Availability:** ✅ In Stock

## Summary

> 🔥 Elevate your Jeep’s roar and performance with Flowmaster precision!

## Quick Answers

- **What is this?** Flowmaster 817942 American Thunder Axle Back Exhaust Kit without Muffler 2.5 Inch 409 Stainless Steel 3 Inch Polished 304 Tip Compatible with 2007-2018 Jeep Wrangler JK 3.6L 3.8L V6 2 and 4 Door by flowmaster
- **How much does it cost?** C$25857 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ni](https://www.desertcart.ni/products/616365230-flowmaster-817942-american-thunder-axle-back-exhaust-kit-without-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

- • **Precision Mandrel Bends:** Optimized exhaust flow for peak engine efficiency and sound.
- • **Off-Road Ready Clearance:** Tailpipe design maximizes ground clearance—perfect for your next adventure.
- • **Power Boosted Performance:** Unlock an extra 5 HP and 7 lb-ft torque for your Jeep Wrangler JK.
- • **Quick & Hassle-Free Installation:** Factory mounting points and included hardware get you roaring in just 15 minutes.
- • **Rugged Stainless Steel Durability:** 409 stainless steel pipe with polished 304 tip resists corrosion and looks sharp.

## Overview

The Flowmaster 817942 American Thunder Axle Back Exhaust Kit is engineered for 2007-2018 Jeep Wrangler JK 3.6L/3.8L models, delivering up to 5 HP and 7 lb-ft torque gains. Crafted from durable 409 stainless steel with a polished 304 tip, it features mandrel-bent piping for enhanced exhaust flow and corrosion resistance. Designed for easy bolt-on installation in about 15 minutes using factory mounting points, it improves ground clearance and sound without the factory muffler. Backed by a lifetime limited warranty, this kit is the ultimate upgrade for Jeep enthusiasts seeking performance and style.

## Description

Flowmaster 817942 American Thunder Axle Back Exhaust Kit without Muffler 2.5 Inch 409 Stainless Steel 3 Inch Polished 304 Tip Compatible with 2007-2018 Jeep Wrangler JK 3.6L 3.8L V6 2 and 4 Door

## Features

- Max Dyno Gains of 5 HP and 7 Lb.Ft. Torque
- Provides Maximum Clearance for Off-Roading
- Mandrel Bent Pipe Increases Exhaust Flow and Performance
- Stainless Steel Construction Offers Great Corrosion Resistance
- Utilizes the Factory Mounting Points for an Easy Installation

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Installation Type | Bolt-On |
| Finish Type | Polished |
| Manufacturer | Flowmaster |
| UPC | 090127100530 |
| Global Trade Identification Number | 00090127100530 |
| Model | Flowmaster 817942: 07-18 Wrangler Jk 3.6L/3.8L Axle-Back Exhaust System |
| Item Weight | 5.75 pounds |
| Product Dimensions | 30.7 x 10.6 x 10.4 inches |
| Item model number | 817942 |
| Exterior | Machined |
| Manufacturer Part Number | 817942 |

## Product Details

- **Color:** Multicolor
- **Brand:** Flowmaster
- **Material:** Stainless Steel
- **Vehicle Service Type:** Car
- **Shape:** Round

## Images

![Flowmaster 817942 American Thunder Axle Back Exhaust Kit without Muffler 2.5 Inch 409 Stainless Steel 3 Inch Polished 304 Tip Compatible with 2007-2018 Jeep Wrangler JK 3.6L 3.8L V6 2 and 4 Door - Image 1](https://m.media-amazon.com/images/I/51qfeKVt8RL.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.ni/products/616365230-flowmaster-817942-american-thunder-axle-back-exhaust-kit-without-muffler](https://www.desertcart.ni/products/616365230-flowmaster-817942-american-thunder-axle-back-exhaust-kit-without-muffler)

---

*Product available on Desertcart Nicaragua*
*Store origin: NI*
*Last updated: 2026-02-02*