FMF 044211 Factory 4.1 Titanium Slip-On Muffler With Stainless End Cap — Yamaha Raptor 700 / R

FMF RACING — Premium Lightweight Raw Titanium Canister, High-Strength Stainless Steel Core and Euro End Cap, Slip-On Performance Exhaust for Yamaha Raptor 700 and 700R Sport ATVs

Unleash the full power and deep, aggressive exhaust note of your big-bore sport ATV with the elite FMF 044211 Factory 4.1 Slip-On Muffler. When flat-out performance, weight reduction, and premium construction are your top priorities, the Factory 4.1 series is the ultimate upgrade for your machine. Relied on by championship-winning factory race teams across the globe, this exhaust system replaces your heavy, restrictive stock muffler with a track-tested racing weapon designed to optimize horsepower and torque across the entire RPM range—giving you the extra pull needed to dominate sand dunes, trail loops, and racing circuits alike.

This premium slip-on muffler features a lightweight raw titanium canister body that sheds massive pounds compared to original equipment, significantly improving your quad's power-to-weight ratio and handling agility. The mid-pipe, structural core, and signature Euro-style end cap are constructed from heavy-duty stainless steel to ensure rugged impact durability and long-term resistance to extreme exhaust heat. Engineered with a multi-stage internal packing configuration, this oval muffler boosts exhaust gas scavenging velocity to optimize power delivery. It offers versatile configuration options, providing a direct drop-in fit with your original stock head pipe, as well as a perfect match for upgrading to an FMF Powerbomb or Megabomb header down the road. Furthermore, the modular end-cap design accepts optional FMF quiet inserts and USFS-approved spark arrestor screens to easily comply with local trail noise and forestry regulations.

• Factory Level Performance: Engineered to deliver substantial horsepower and torque gains across the bottom, mid, and top-end pull.
• Raw Titanium Body: Ultra-lightweight titanium canister construction dramatically reduces overall machine weight compared to the bulky stock exhaust.
• Rugged Stainless Trim: Heavy-duty stainless steel mid-pipe, internal core, and Euro-style end cap provide superior trail impact durability.
• Modular Tuning: Accepts optional FMF quiet turn-down inserts and screen-type spark arrestors for track-to-trail sound versatility.
• Universal Header Fitment: Integrates seamlessly with your stock OEM head pipe or upgrades directly to FMF Powerbomb and Megabomb headers.
• Championship Pedigree: The same high-performance exhaust design trusted by premier factory racing teams and elite off-road competitors.

Moto-House MX Pro Tip:

The Yamaha Raptor 700 is an absolute beast, but its potential is heavily choked down by the quiet, heavy stock muffler box. Bolting on this Factory 4.1 slip-on is the single fastest way to wake up that 686cc power plant, giving it a crisp throttle response and a throaty, deep rumble that sounds incredible. Installation Tip: When sliding the new mid-pipe onto your header, apply a thin, even layer of high-temperature copper silicone sealant around the junction slice. This ensures a 100% airtight seal, preventing annoying popping on deceleration or minor air leaks that can throw off your engine tuning. Tuning Advice: Because this free-flowing exhaust significantly increases airflow efficiency, we highly recommend pairing it with a high-quality aftermarket fuel controller (EFI tuner) to adjust your air/fuel mapping. This prevents a lean running condition, ensuring maximum safe horsepower gains and cooler engine operating temperatures.

Muffler Material	Pipe & End Cap Specs	Primary Compatibility
Raw Premium Titanium Canister	Stainless Steel / Euro End Cap Style	Yamaha Raptor 700 (2006 - 2012)
Weight: 5.4 lbs (Lightweight)	Accepts Quiet Inserts / Spark Arrestors	Yamaha Raptor 700R (2013 - 2023+)
Exhaust Configuration: Slip-On	Fits Stock, Powerbomb & Megabomb Headers	Riding Style: Sport ATV / Off-Road

FAQ Questions

Q) Does this muffler come out of the box with a USFS-approved spark arrestor pre-installed?
A) No, the Factory 4.1 model is shipped as an open race-course muffler optimized for maximum unrestricted airflow. Screen spark arrestors and sound-reducing inserts are sold separately and can be easily bolted into the stainless end cap.

Q) Will this single slip-on exhaust fit a dual-exhaust style aftermarket configuration?
A) No, this is a premium single-sided slip-on configuration engineered to bolt directly to your quad's original stock right-side single-pipe mounting provisions or single aftermarket headers.

Moto-House MX – Choice of Champions – is located in Clermont/Montverde, FL. We are the best shop in Central Florida with lightning-fast shipping.