---
product_id: 202665520
title: "M4 Performance Exhaust Q4 Stage2 dB silencer quiet insert for M4 Street Slayer muffler"
brand: "m4"
price: "97 Lei"
currency: RON
in_stock: false
reviews_count: 4
url: https://www.desertcart.ro/products/202665520-m4-performance-exhaust-q4-stage2-db-silencer-quiet-insert-m4
store_origin: RO
region: Romania
---

# M4 Performance Exhaust Q4 Stage2 dB silencer quiet insert for M4 Street Slayer muffler

**Brand:** m4
**Price:** 97 Lei
**Availability:** ❌ Out of Stock

## Quick Answers

- **What is this?** M4 Performance Exhaust Q4 Stage2 dB silencer quiet insert for M4 Street Slayer muffler by m4
- **How much does it cost?** 97 Lei with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/202665520-m4-performance-exhaust-q4-stage2-db-silencer-quiet-insert-m4)

## Best For

- m4 enthusiasts

## Why This Product

- Trusted m4 brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description



## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | M4 |

## Product Details

- **Brand:** M4
- **Material:** Stainless Steel
- **Vehicle Service Type:** Motorcycle
- **Shape:** Round
- **UPC:** 711347112713

## Images

![M4 Performance Exhaust Q4 Stage2 dB silencer quiet insert for M4 Street Slayer muffler - Image 1](https://m.media-amazon.com/images/I/3196GpCLQtL.jpg)

## Questions & Answers

**Q: Does this come with the ring that secures the baffle in place?**
A: The M4 Q4 mounts with a bolt and the bolt plus lock washer come with the quiet insert.

**Q: Lost bolt & washer due to vibration, what size & length is the bolt?**
A: Contact M4 directly to inquire: 972-481-9300, fax 972-488-2772 / M-F 9am-5pm cst

**Q: Does this go inside a stage 1 or replaces it?**
A: If you already have a Stage1 dB silencer installed, you remove it, and install the Stage2

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    db Killer
  

*by B***N on Reviewed in the United States on February 25, 2022*

This was a direct replacement for the stock db killer on a Street Slayer exhaust. It fit perfect very easy to remove and replace. The sound is the same at start up and on the bottom end. The difference is on the top end it made a big difference in the amount of sound much quitter. I couldn't tell any difference in power or performance only the sound while ridding.

### ⭐⭐⭐⭐ 4.0 out of 5 stars







  
  
    Down a few decibels….
  

*by T***3 on Reviewed in the United States on April 21, 2023*

Bought this for my gsxr. It made it more tolerable when riding but nothing too drastic. Just less drone

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Just right….
  

*by C***R on Reviewed in the United States on March 19, 2022*

Tried the Street Slayer stock on my XSR900. Sounded great, except the drone was too much for while riding. Put this in and reduced the sound down to “just right”. Gives it a nice throaty sound without the drone and won’t piss off my neighbors… as long as I don’t throttle too much until I get out of the neighborhood.

## Frequently Bought Together

- M4 Performance Exhaust Q4 Stage2 dB silencer quiet insert for M4 Street Slayer muffler
- MZS Exhaust Tip, Stainless Steel 2.5" Inlet 4" Outlet 17" Length Universal Exhaust Tailpipe Slant Angle Cut - Titanium Burnt
- EVIL ENERGY 2.0 Inch Exhaust Clamp, Butt Joint Band Clamp Sleeve Coupler Stainless Steel for Pipes,Mufflers,Catalytic Converters 2PCs

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**Shop now:** [https://www.desertcart.ro/products/202665520-m4-performance-exhaust-q4-stage2-db-silencer-quiet-insert-m4](https://www.desertcart.ro/products/202665520-m4-performance-exhaust-q4-stage2-db-silencer-quiet-insert-m4)

---

*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-02-20*