---
product_id: 23821439
title: "Ultra Flo 17554 Exhaust Muffler"
brand: "dynomax"
price: "HK$4325"
currency: HKD
in_stock: true
reviews_count: 9
category: "Dynomax"
url: https://www.desertcart.hk/products/23821439-ultra-flo-17554-exhaust-muffler
store_origin: HK
region: Hong Kong
---

# CRF tech reduces resonance, delivers deep performance tone 100% welded stainless steel for max durability 3-inch X-pipe balance tube for optimized exhaust flow Ultra Flo 17554 Exhaust Muffler

**Brand:** dynomax
**Price:** HK$4325
**Availability:** ✅ In Stock

## Summary

> 🔥 Unleash the growl, silence the drone — your ride’s new signature sound!

## Quick Answers

- **What is this?** Ultra Flo 17554 Exhaust Muffler by dynomax
- **How much does it cost?** HK$4325 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/23821439-ultra-flo-17554-exhaust-muffler)

## Best For

- dynomax enthusiasts

## Why This Product

- Trusted dynomax brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Space-Savvy Design:** Perfect for vehicles with limited undercarriage space—performance without compromise.
- • **Engineered Flow Mastery:** 3-inch diameter internal X-pipe balance tube promotes exhaust scavenging and equalizes flow for peak efficiency.
- • **Built to Last, Welded to Win:** 100% welded stainless steel construction ensures lifelong rust and damage resistance.
- • **Sound That Commands Attention:** CRF technology absorbs unwanted drone while delivering a deep, aggressive rumble that turns heads.
- • **Universal Fit, Precision Performance:** Fits a wide range of vehicles with compact design—no guesswork needed.

## Overview

The Ultra Flo 17554 Exhaust Muffler by DynoMax is a universal-fit, stainless steel performance muffler featuring a 100% welded design for maximum durability. Its 3-inch internal X-pipe balance tube optimizes exhaust scavenging and flow equalization, while CRF technology minimizes interior resonance to deliver a deep, aggressive tone without excessive drone. Ideal for vehicles with limited space, it offers a perfect blend of longevity, sound quality, and fitment versatility.

## Description

Featuring 100% welded construction and universal fit, DynoMax® Ultra Flo® Welded X performance stainless steel mufflers incorporate a 3-in. diameter X-pipe balance tube inside the muffler to promote exhaust scavenging and equalize flow.

Review: great muffler - sounds great on my 4.6 GM, kinda like a mustang sound, i kept my cats so it's not very loud until you really get on it. i thought it would be way louder. it's definitely not super quiet but it is nice sounding, it almost pops like a glasspack when u really get up past 4000 RPM. has a nice low, mellow rumble without almost no drone. i love it. way better sounding than my 40 series flowmaster. i like loud pipes so if u want a super quiet muffler this isn't for you.
Review: The muffler appears to be well reconstructed and seems to be a superior design compared to the flowmaster super 50 that I ... - I installed this muffler on my 2006 silverado 2500HD. The muffler appears to be well reconstructed and seems to be a superior design compared to the flowmaster super 50 that I replaced. It's got a nice straight through design and it sounds great. I would definitely recommend it if you are looking for a nice growl without a ton of drone on the freeway. Definitely not a quiet muffler on my truck though.

## Features

- COMPATIBILITY – Universal fit, check product dimensions
- GET THE RIGHT PART -- Before purchasing, research to ensure that the part will fit your vehicle; enter all vehicle information (year, make, model, engine and trim) for compatibility and check qualifier notes
- Designed for vehicles with limited space
- Stainless steel construction for lifelong protection
- 100% welded design for maximum durability
- 3 inch diameter internal X-pipe balance tube promotes exhaust scavenging and equalizes flow
- CRF Technology absorbs unwanted interior resonance while maintaining a deep performance tone

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000VS4AM0 |
| Best Sellers Rank | #2,050,905 in Automotive ( See Top 100 in Automotive ) #663 in Automotive Performance Exhaust Mufflers #40,732 in Automotive Emission & Exhaust Products |
| Brand | Dynomax |
| Customer Reviews | 3.7 3.7 out of 5 stars (39) |
| Date First Available | September 6, 2007 |
| Exterior | Smooth |
| Global Trade Identification Number | 00086387175548 |
| Inlet Connection Size | 2.25 Inches |
| Item Weight | 2.2 pounds |
| Item dimensions L x W x H | 27.25 x 10.25 x 5 inches |
| Item model number | 17554 |
| Manufacturer | Tenneco (Dynomax, Walker, Thrush) |
| Manufacturer Part Number | 17554 |
| OEM Part Number | 17554 |
| Product Dimensions | 27.25 x 10.25 x 5 inches |
| Shape | Oval |
| UPC | 086387175548 |
| Vehicle Service Type | Car |

## Product Details

- **Brand:** Dynomax
- **Item Weight:** 2.2 Pounds
- **Item dimensions L x W x H:** 27.25 x 10.25 x 5 inches
- **Material:** Stainless Steel
- **Vehicle Service Type:** Car

## Images

![Ultra Flo 17554 Exhaust Muffler - Image 1](https://m.media-amazon.com/images/I/61FSwCdBgHL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ great muffler
*by S***R on November 20, 2012*

sounds great on my 4.6 GM, kinda like a mustang sound, i kept my cats so it's not very loud until you really get on it. i thought it would be way louder. it's definitely not super quiet but it is nice sounding, it almost pops like a glasspack when u really get up past 4000 RPM. has a nice low, mellow rumble without almost no drone. i love it. way better sounding than my 40 series flowmaster. i like loud pipes so if u want a super quiet muffler this isn't for you.

### ⭐⭐⭐⭐⭐ The muffler appears to be well reconstructed and seems to be a superior design compared to the flowmaster super 50 that I ...
*by N***E on May 23, 2018*

I installed this muffler on my 2006 silverado 2500HD. The muffler appears to be well reconstructed and seems to be a superior design compared to the flowmaster super 50 that I replaced. It's got a nice straight through design and it sounds great. I would definitely recommend it if you are looking for a nice growl without a ton of drone on the freeway. Definitely not a quiet muffler on my truck though.

### ⭐ Great Product, Poor Reliability
*by M***E on March 30, 2019*

I used the DynoMax Ultra Flo™ X, model 17554, dual 3" in, dual 3" out Muffler to replace a restrictive factory mid-muffler. The Muffler benefits include reduced restriction, compact size compared to the factory mufflers in my case, and added scavenging with the built-in cross flow X-Pipe that helps create better exhaust gas evacuation through the venturi effect. In my exhaust system, the product was slightly louder than stock . This was all of the features I was looking for. I was very happy. Unfortunately, the product failed within a month and would have failed sooner if not for low driving miles. The product internals began to rattle, fall apart, then it blew out the fiberglass sound absorption material through the downstream piping and mufflers with possible restriction in the other mufflers from debris. I tried a second replacement muffler from the same manufacturer within a month. I find it unlikely that two muffler failures were caused by a rare failure anomaly and more likely that the product has a design defect, most likely bad welds, poor material strength, or material heat tolerance. Hopefully the manufacturer will solve this quickly. Very disappointing.

## Frequently Bought Together

- Dynomax Ultra Flo 17554 Exhaust Muffler
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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-03-08*