Big Gun 21-23 Honda CRF 450R EXO Aluminum Full System Exhaust

SKU: BIG13-14573

BIG EXO Aluminum MX Full Systems...

Big Gun 21-23 Honda CRF 450R EXO Aluminum Full System Exhaust

SKU: BIG13-14573

BIG EXO Aluminum MX Full Systems...

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Description

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 MX 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.

Product Overview

Big Gun 21-23 Honda CRF 450R EXO Aluminum Full System Exhaust

Product Details

Description:	Big Gun 21-23 Honda CRF 450R EXO Aluminum Full System Exhaust
Part Number:	big13-14573

Data: v4.2 - Upd: 2026-10-15 13:21:07

Features

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

Specifications

Description:: Big Gun 21-23 Honda CRF 450R EXO Aluminum Full System Exhaust
Part Number:: big13-14573

Reference Information

Brand Name/s	Big Gun
StreetFX SKU	big13-14573
SFX Item ID	5424939
Supplier Item Code	5424939
Manufacturer SKU	13-14573
Manufacturer UPC	N/A
Alternative References	450R