MBRP AT-6705SP Sport Series Slip-On Exhaust System for Arctic Cat 400, 500, 550 and Thundercat 1000

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. ATV Exhaust System With Sport Muffler; Slip-On System; 1.75 in. Inlet; 4.25 in. Diameter Body; Chambered Muffler; Excludes V2 Models.

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

Upgrade your ATV with the MBRP Sport Series AT-6705SP slip-on exhaust system, designed to deliver a clean appearance, improved exhaust flow, and a balanced performance tone. The chambered Sport muffler produces a mild exhaust note during everyday trail riding while delivering a deeper, more aggressive sound when you open the throttle.

This MBRP exhaust system is engineered for straightforward bolt-on installation and uses a 1.75-inch inlet with a 4.25-inch muffler body. Its dependable chambered design supports increased flow without creating an excessively loud riding experience, making it well suited for recreational use, trail riding, and extended outings. The slip-on configuration allows you to replace the muffler section while retaining the appropriate factory exhaust components.

Designed for select Arctic Cat ATV applications, the MBRP AT-6705SP fits various 400, 500, 550, and Thundercat 1000 models, including the listed 2006–2010 fitments. This system excludes V2 models. Verify the exact year, model, engine configuration, and exhaust layout before ordering. This product is not CARB approved, and applicable emissions requirements should be reviewed before installation or use.

What's Included

• MBRP Sport Series slip-on exhaust system
• Sport chambered muffler
• Installation components as supplied by the manufacturer

Key Specifications

• Brand: MBRP
• Part Number: AT-6705SP
• System Type: Slip-on ATV exhaust system
• Muffler Type: Chambered Sport muffler
• Inlet Size: 1.75 inches
• Muffler Body Diameter: 4.25 inches
• Installation: Bolt-on
• Application: Select Arctic Cat ATV models; excludes V2 models

Features:

• Sport Muffler: Delivers a mild exhaust note for comfortable trail riding with a deeper, more aggressive tone under throttle.
• Increased Flow: Supports improved exhaust flow for responsive ATV performance.
• Chambered Design: Provides a reliable and dependable muffler construction for recreational and trail use.
• Bolt-On Installation: Slip-on configuration simplifies installation using the existing exhaust system layout.

Fitments:
2006 Arctic Cat 400 4X4 Base
2006 Arctic Cat 400 4X4 Auto Base
2006 Arctic Cat 400 4X4 Auto Le Base
2006 Arctic Cat 400 4X4 Auto Tbx Base
2006 Arctic Cat 400 4x4 Auto TRV Base
2006 Arctic Cat 500 4X4 Base
2006 Arctic Cat 500 4X4 Auto Base
2006 Arctic Cat 500 4X4 Auto Tbx Base
2006 Arctic Cat 500 4X4 Auto Trv Base
2006 Arctic Cat 650 H1 4x4 Auto Base
2006 Arctic Cat 650 H1 4x4 Auto SE Base
2007 Arctic Cat 400 4X4 Base
2007 Arctic Cat 400 4X4 Auto Base
2007 Arctic Cat 400 4X4 Auto Le Base
2007 Arctic Cat 400 4x4 Auto TRV Base
2007 Arctic Cat 400 4X4 Auto Trv Plus Base
2007 Arctic Cat 500 4X4 Base
2007 Arctic Cat 500 4X4 Auto Base
2007 Arctic Cat 650 H1 4x4 Auto Base
2007 Arctic Cat 650 H1 4x4 Auto LE Base
2007 Arctic Cat 650 H1 4x4 Auto TBX Base
2007 Arctic Cat 650 H1 4x4 Auto TRV Plus Base
2007 Arctic Cat 650 H1 4X4 Auto Trv Plus Le Base
2008 Arctic Cat 400 4X4 Auto Base
2008 Arctic Cat 400 4x4 Auto TRV Base
2008 Arctic Cat 500 4X4 Base
2008 Arctic Cat 500 4X4 Auto Base
2008 Arctic Cat 500 4X4 Auto Trv Base
2008 Arctic Cat 650 H1 4x4 Auto Base
2008 Arctic Cat 650 H1 4x4 Auto TRV Base
2008 Arctic Cat 700 EFI 4x4 Auto TRV Cruiser Base
2008 Arctic Cat 700 EFI 4x4 Auto TRV LE Base
2008 Arctic Cat 700 EFI H1 4x4 Auto SE Base
2008 Arctic Cat Thundercat 1000 4x4 Auto Base
2009 Arctic Cat 1000 TRV Cruiser Base
2009 Arctic Cat 400 4x4 Auto TRV Base
2009 Arctic Cat 500 4X4 Base
2009 Arctic Cat 500 4X4 Auto Base
2009 Arctic Cat 550 4x4 Auto LE Base
2009 Arctic Cat 550 4x4 Auto TRV Base
2009 Arctic Cat 550 4X4 Auto Trv Le Base
2009 Arctic Cat 550 H1 EFI Base
2009 Arctic Cat 650 4x4 Auto TBX Base
2009 Arctic Cat 650 H1 4x4 Auto TRV Base
2009 Arctic Cat 700 EFI H1 4x4 Auto Base
2009 Arctic Cat 700 EFI H1 4x4 Auto LE Base
2009 Arctic Cat 700 EFI H1 4x4 Auto Mud Pro Base
2009 Arctic Cat 700 EFI H1 4x4 Auto SE Base
2009 Arctic Cat Thundercat 1000 4x4 Auto Base
2010 Arctic Cat 1000 EFI H2 4x4 Auto Mud Pro Base
2010 Arctic Cat 1000 TRV Cruiser Base
2010 Arctic Cat 400 4x4 Auto TRV Base
2010 Arctic Cat 450 EFI H1 4x4 Auto Base
2010 Arctic Cat 550 4x4 Auto TRV Base
2010 Arctic Cat 650 H1 4x4 Auto Base
2010 Arctic Cat 650 H1 4x4 Auto Mud Pro Base
2010 Arctic Cat 700 EFI 4x4 Auto TRV Cruiser Base
2010 Arctic Cat 700 EFI H1 4x4 Auto Base
2010 Arctic Cat 700 EFI H1 4x4 Auto Mud Pro Base
2010 Arctic Cat 700 EFI H1 4x4 Auto TBX Base
2010 Arctic Cat Thundercat 1000 4x4 Auto Base
2010 Arctic Cat Thundercat 1000 4x4 Auto LE Base
2011 Arctic Cat 1000 EFI H2 4x4 Auto Mud Pro Base
2011 Arctic Cat 1000 TRV Cruiser Base
2011 Arctic Cat 450 Base
2011 Arctic Cat 450 TRV Base
2011 Arctic Cat 550 4x4 Auto Base
2011 Arctic Cat 550 4x4 Auto TRV Base
2011 Arctic Cat 550 Ltd Base
2011 Arctic Cat 550 S Base
2011 Arctic Cat 550 TRV GT Base
2011 Arctic Cat 650 H1 4x4 Auto Base
2011 Arctic Cat 650 H1 4x4 Auto Mud Pro Base
2011 Arctic Cat 700 Base
2011 Arctic Cat 700 EFI 4x4 Auto TRV Cruiser Base
2011 Arctic Cat 700 EFI H1 4x4 Auto Mud Pro Base
2011 Arctic Cat 700 EFI H1 4x4 Auto TRV Base
2011 Arctic Cat Prowler HDX 700 Base
2012 Arctic Cat 1000i GT Base
2012 Arctic Cat 450i Base
2012 Arctic Cat 450i Gt Base
2012 Arctic Cat 550 Base
2012 Arctic Cat 550i Gt Base
2012 Arctic Cat 550i Ltd Base
2012 Arctic Cat 700i Base
2012 Arctic Cat 700i Gt Base
2012 Arctic Cat 700i Ltd Base
2012 Arctic Cat MudPro 700 LTD Base
2012 Arctic Cat Prowler HDX 700i Base
2012 Arctic Cat TRV 1000i Cruiser Base
2012 Arctic Cat TRV 1000i GT Base
2012 Arctic Cat TRV 450i Base
2012 Arctic Cat TRV 450i GT Base
2012 Arctic Cat TRV 550i Crusier Base
2012 Arctic Cat TRV 550i GT Base
2012 Arctic Cat TRV 700i Cruiser Base
2012 Arctic Cat TRV 700i GT Base
2013 Arctic Cat 1000 XT Base
2013 Arctic Cat 550 Core Base
2013 Arctic Cat 550 Xt Base
2013 Arctic Cat 550i Ltd Base
2013 Arctic Cat 700 Xt Base
2013 Arctic Cat Prowler HDX 700i Base
2013 Arctic Cat TBX 700 XT Base
2013 Arctic Cat TRV 1000 LTD Base
2013 Arctic Cat TRV 500 Core Base
2013 Arctic Cat TRV 550 LTD Base
2013 Arctic Cat TRV 550 XT Base
2013 Arctic Cat TRV 700 XT Base
2014 Arctic Cat 1000 XT Base
2014 Arctic Cat 500 Base
2014 Arctic Cat 550 Base
2014 Arctic Cat 550 Ltd Base
2014 Arctic Cat 550 Xt Base
2014 Arctic Cat 700 Base
2014 Arctic Cat 700 Ltd Base
2014 Arctic Cat 700 Xt Base
2014 Arctic Cat MudPro 1000 LTD Base
2014 Arctic Cat MudPro 700 LTD Base
2014 Arctic Cat Prowler HDX 500 Base
2014 Arctic Cat Prowler HDX 500 Limited Base
2014 Arctic Cat Prowler HDX 500 XT Base
2014 Arctic Cat Prowler HDX 700 Limited Base
2014 Arctic Cat TBX 700 Base
2014 Arctic Cat TRV 1000 LTD Base
2014 Arctic Cat TRV 550 LTD Base
2014 Arctic Cat TRV 550 XT Base
2014 Arctic Cat TRV 700 LTD Base
2014 Arctic Cat TRV 700 XT Base
2015 Arctic Cat 1000 XT Base
2015 Arctic Cat 500 Base
2015 Arctic Cat MudPro 1000 LTD Base
2015 Arctic Cat MudPro 700 LTD Base
2015 Arctic Cat Prowler HDX 500 Base
2015 Arctic Cat Prowler HDX 700 XT Base
2015 Arctic Cat TBX 700 Base
2015 Arctic Cat TRV 1000 LTD Base
2015 Arctic Cat TRV 1000 XT Base
2015 Arctic Cat TRV 500 Base
2015 Arctic Cat TRV 550 LTD Base
2015 Arctic Cat TRV 550 XT Base
2015 Arctic Cat TRV 700 LTD Base
2015 Arctic Cat TRV 700 XT Base
2016 Arctic Cat 1000 XT Base
2016 Arctic Cat 500 Base
2016 Arctic Cat Alterra 700 Base
2016 Arctic Cat Alterra 700 XT Base
2016 Arctic Cat MudPro 1000 SE Base
2016 Arctic Cat MudPro 700 LTD Base
2016 Arctic Cat TBX 700 Base
2016 Arctic Cat TBX 700 SE Base
2016 Arctic Cat TRV 700 SE Base
2017 Arctic Cat 1000 XT Base
2017 Arctic Cat 500 Base
2017 Arctic Cat Alterra 700 Base
2017 Arctic Cat Alterra 700 XT Base
2017 Arctic Cat Alterra TRV 1000 XT Base
2017 Arctic Cat Alterra TRV 500 Base
2017 Arctic Cat Alterra TRV 550 XT Base
2017 Arctic Cat MudPro 1000 LTD Base
2017 Arctic Cat MudPro 700 LTD Base
2017 Arctic Cat TBX 700 Base
2017 Arctic Cat VLX 700 Base
2020 Arctic Cat Alterra TBX 700 Base
2020 Arctic Cat Alterra TRV 700 Base
2021 Arctic Cat Alterra TRV 700 Base
2022 Arctic Cat Alterra TRV 700 EPS Base

Air Freight Prohibited: false
Not Carb Approved: false
Carb Acknowledgement Required: true
Ltl Freight Required: false
Prop 65: Y
Part Type: powersports
Epa: N/A
Regular Stock: t
Units Per Sku: 1