# Big Gun 09-23 Yamaha YFZ 450R EXO Aluminum Slip On Exhaust

EXO Series came about from a realization of the need for a bigger and better muffler that could handle the huge demands of the larger, more powerful sport ATV motors. The EXO Series is our ground-up approach at just that. A unique hexagon shaped aluminum muffler and stainless steel coned inlet allow for significantly more volume, delivering a louder but tolerable deep sound while also decreasing heat.

-   Internal sound wave altering technology for a deeper but tolerable exhaust tone
-   Stamped 304 stainless steel coned inlet for more volume
-   Hexagon shaped large diameter housing for more volume
-   Removable screen-type spark arrestor included
-   Black powder coated stainless steel end tip
-   TIG welded reinforced muffler bracket(s)
-   Significant horsepower and torque gains
-   Light weight brushed aluminum muffler
-   304 stainless steel mid pipe
-   Handmade in the USA

This Part Fits:

Year

Make

Model

Submodel

2009-2021

Yamaha

YFZ450R

Base

2010-2011

Yamaha

YFZ450X

Base

## Details

- **Price:** 650.52 CAD
- **Vendor:** Big Gun
- **Type:** Motorcycle Slip-On

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 650.52 CAD | In stock |

## Images

- User 1

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/big-gun-09-23-yamaha-yfz-450r-exo-aluminum-slip-on-exhaust)
> Updated: 2026-08-07