MBRP 04-09 Yamaha YZF 450 Slip-On Exhaust System w/Sport Muffler

SKU: MBRPAT-6403SP

Mufflers

MBRP Powersports Slip-on Exhaust w/ Sport Mufflers

Mbrp

MBRP 04-09 Yamaha YZF 450 Slip-On Exhaust System w/Sport Muffler

SKU: MBRPAT-6403SP

Mufflers

MBRP Powersports Slip-on Exhaust w/ Sport Mufflers

Available from MFR. This item is available from the manufacturer's distribution centre. The dispatch timeframe shown is an estimate based on historical order processing and release times for this part. This item is not held in our own warehouse, and actual dispatch timing may vary depending on manufacturer workload and logistics at the time of ordering.

We accept

Description

CLEAN LOOKS AND A PERFORMANCE SOUND - MBRP SPORT SERIES, Quickly bolt on an MBRP Sport Series exhaust and enjoy the new deep tumble coming from your ATV or SXS. Slam the throttle for an aggressive sound, or cruise all day long without worrying about being obnoxious. This exhaust focuses on enjoying the trails and delivering a balanced tone.

Product Overview

Features and Benefits

Sport Muffler
Reliable and Dependable Chambered Design. Bolt-on Installation. Mild Exhaust Tone, Increased Flow.

Product Details

10980:	Round
Body Diameter:	4.3
Body Height:	4.3
Body Length:	12
Body Material:	Steel
Body Width:	4.3
Bolt-On Yes/No:	Yes
Clamping Type:	Bolt-on
Clamps Included:	Yes
Color:	Black
Description:	ATV Exhaust System With Sport Muffler
Engine Fuel Type:	Gasoline
Exhaust Tip Cut:	Angled
Exhaust Tip Diameter:	2
Exhaust Tip Edge:	Straight
Exhaust Tip Finish:	Powder Coated
Exhaust Tip Intercooled:	No
Exhaust Tip Material:	Aluminized Steel
Exhaust Tip Quantity:	1
Exhaust Tip Resonated:	No
Exhaust Tip Wall:	Single
Exhaust Type:	Single
Exit Position:	Single
Finish:	Powder Coated
Fuel Type:	Gasoline
Hanger Included:	Yes
Inlet Outside Diameter:	1.75
Inlet Quantity:	1
Inlet Type:	Slip-on
Major:	ATV
Material:	304 Stainless Steel
Minor:	Exhaust
Muffler Yes/No:	Yes
Outlet Outside Diameter:	2
Outlet Quantity:	1
Outlet Tip Shape:	Round
Outlet Type:	Single
Part Number:	mbrpAT-6403SP
Prop 65 (C, R or CR):	CR
Prop 65 - Short Label:	Prop65warning.pdf
Prop 65 Yes/No:	YES
Reversible:	No
Shape:	Round
Title:	Slip-on system w/Sport Muffler
Tubing Diameter:	1.750 in.
Type:	Slip-on
UPS Able:	Yes
Universal Or Specific Fit:	Specific
Vehicle Segment:	Dirt
WARNING CA Proposition 65 Message:	WARNING: This product can expose you to chemicals including nickel (metallic) and chromium (hexavalent compounds) which are known to the State of California to cause cancer and birth defects; or other reproductive harm
WARNING CA Proposition 65:	Yes

Part Type

Exhaust Muffler

Data: v4.2 - Upd: 2026-10-12 02:45:50

Features

Reliable and Dependable Chambered Design. Bolt-on Installation. Mild Exhaust Tone, Increased Flow.
Sport Muffler

Specifications

Product Attributes - UPC: 882963109255
Product Attributes - Brand: MBRP Performance Exhaust
Product Attributes - Quantity: Sold individually.
Product Attributes - Part Type: Mufflers
Product Attributes - Case Shape: Round
Product Attributes - Reversible: No
Product Attributes - End Cap Type: Round
Product Attributes - Outlet Style: Turndown
Product Attributes - Product Line: MBRP Sport Slip-On Mufflers
Product Attributes - End Cap Color: Black powdercoated
Product Attributes - Muffler Finish: Black powdercoated
Product Attributes - End Cap Material: Stainless steel
Product Attributes - Muffler Material: 304 stainless steel
Product Attributes - Internal Construction: Chambered
Product Attributes - Manufacturer's Part Number: AT-6403SP

Reference Information

Brand Name/s	Mbrp
StreetFX SKU	mbrpAT-6403SP
SFX Item ID	4047553
Supplier Item Code	4047553
Manufacturer SKU	AT-6403SP
Manufacturer UPC	882963109255
Alternative References	MBRAT-6403SP

Brochures

Compatibility

Application Data

Universal No
Make YAMAHA
Model YFZ450
Submodel
Beginning Year 2004
Ending Year 2009
CC 449
Application Notes Slip-On System; 1.75 in. Inlet; 4.25 in. Diameter Body; Chambered Muffler