FMF Exhaust Factory 4.1 System

for ATVs: A complete ‘front to back’ system consisting of performance matched components specifically developed for each particular model Our chief engineers managed to shift the already light weight of this complete FMF exhaust Titanium system in such a way as to lower and centralize your machine’s center of gravity which improves handling and critical clearances, all without sacrificing unmatched durability or silencer volume.

 FMF Exhaust 4.1 Features:
• Completely new canister shape and size is lighter and more performance-optimizing
• New front and rear end cap designs developed to enhance fit, function and style
• Fixed, specific mounting brackets for slip-ons and full systems
• Excellent fit, finish and attention to detail

Same FMF Exhaust System use by our Factory Race Team.

The FMF Factory 4.1 exhaust systems consist of the new ‘FMF Factory Forward” FMF exhaust Powerbomb headers, custom matched mid-pipes, new oval to round anodized FMF Factory 4.1 canister and an FMF “Remove before Flight” washplug While these systems were built to perform with stock jetting specifications, for optimum response.
We also offer an FMF Power Up jet kit for those riders wanting the most from their investment for optimum jetting tuneability.

fmf spark arrester insert is an optional item.

FMF Is the leader in ATV Exhausts and motorcycle exhuasts.

FMF Factory 4.1 Slip-On muffler.

FMF Slip-on muffler Features:
• Completely new muffler canister shape and size is lighter and more performance-optimizing
• New front and rear muffler end cap designs developed to enhance fit, function and style
• Fixed, specific mounting brackets for slip-ons muffler and full systems
• Slip-on available in Stainless steel and titanium
• Excellent fit, finish and attention to detail

Titanium: Titanium Muffler and Titanium Mid-pipe
Stainless Steel: Titanium Muffler and Stainless Steel Mid-pipe
Anodized Titanium: Anodized Muffler and Titanium Mid-pipe
Anodized Stainless Steel: Anodized Muffler and Stainless Steel Mid-pipe.

Titanium and Stainless Steel NOT pictured.

FMF Exhaust System

FMF Factory 4.1 Slip-On TI Natural Suzuki LT-R450 06-10 Code: T27-2049 Price: $328.30 Retail Price: $400 Quantity in Basket: none

FMF Factory 4.1 Exhaust TI Natural Suzuki LTR-450 06-10 Code: T27-2053 Price: $492.46 Retail Price: $599.99 Quantity in Basket: none

FMF Factory 4.1 Slip-On TI Natural, Honda TRX450R 04-10 Code: T27-4040 Price: $328.30 Retail Price: $399 Quantity in Basket: none

FMF Factory 4.1 Exhaust System TI Natural, Honda TRX450R 06-10 Code: T27-4042 Price: $484.26 Retail Price: $600 Quantity in Basket: none

FMF Factory 4.1 Slip-On TI Natural, Kawasaki KFX400 03-06, Suzuki LTZ400 03-08 Code: T27-4049 Price: $322.85 Retail Price: $399 Quantity in Basket: none

FMF Factory 4.1 Slip-On TI Natural, Yamaha YFM350 Raptor 05-10 Code: T27-4057 Price: $322.85 Retail Price: $399 Quantity in Basket: none

FMF Factory 4.1 Slip-On TI Natural, Yamaha YFZ450 04-09 Code: T27-4059 Price: $322.85 Retail Price: $399 Quantity in Basket: none

FMF Factory 4.1 Exhaust System, TI Natural, Yamaha YFZ450 04-09 Code: T27-4061 Price: $484.26 Retail Price: $600 Quantity in Basket: none

FMF Factory 4.1 Slip-On TI Natural, Yamaha YFM700 Raptor 06-10 Code: T27-4064 Price: $322.85 Retail Price: $399 Quantity in Basket: none

FMF Factory 4.1 Exhaust TI Natural, Yamaha YFM700 Raptor 06-10 Code: T27-4066 Price: $548.85 Retail Price: $679.99 Quantity in Basket: none

FMF Factory 4.1 Exhaust System TI Natural, Kawasaki KFX450R 08-10 Code: T27-4090 Price: $484.36 Retail Price: $600 Quantity in Basket: none

FMF Factory 4.1 Slip-On TI Natural, Kawasaki KFX450r 08-10 Code: T27-4092 Price: $322.85 Retail Price: $399.99 Quantity in Basket: none

FMF Factory 4.1 Slip-On TI Natural Can-Am DS450 EFI 08-10 Code: t27-4508 Price: $322.85 Retail Price: $399.99 Quantity in Basket: none

FMF Factory 4.1 Exhaust TI Natural Can-Am DS450 EFI 08-10 Code: t27-4510 Price: $484.26 Retail Price: $600.00 Quantity in Basket: none

FMF Factory 4.1 Exhaust TI Natural Honda TRX700XX 08-10 Code: t27-4516 Price: $548.85 Retail Price: $679.99 Quantity in Basket: none

FMF Factory 4.1 Slip-On TI Natural Honda TRX700xx 08-10 Code: t27-4518 Price: $322.85 Retail Price: $399.99 Quantity in Basket: none

FMF Factory 4.1 Slip-On Titanium KTM 450SX 08-10, 505SX 09-10, 525XC 08 Code: t27-4527 Price: $322.85 Retail Price: $399.99 Quantity in Basket: none

FMF Factory 4.1 Exhaust TI Natural KTM 450/525XC 08 Code: t27-4529 Price: $645.70 Retail Price: $799.99 Quantity in Basket: none

FMF Factory 4.1 Slip-On TI Natural Polaris Predator 500 03-07 Code: t27-4532 Price: $322.85 Retail Price: $399.99 Quantity in Basket: none

FMF Factory 4.1 Slip-On TI Natural Polaris Outlaw 525 irs 07 Code: t27-4180 Price: $363.25 Retail Price: $449.99 Quantity in Basket: none

FMF Factory 4.1 Slip-On TI Natural Polaris Outlaw 525s/450mxr 08 Code: t27-4194 Price: $363.25 Retail Price: $449.99 Quantity in Basket: none

FMF Factory 4.1 Slip-On Anodized Titanium Honda TRX700 08-10 Code: t27-4519 Price: $322.85 Retail Price: $399.99 Quantity in Basket: none

FMF Factory 4.1 Slip-On TI Natural Polaris Outlaw 450MXR 09 Code: t27-4613 Price: $363.20 Retail Price: $450 Quantity in Basket: none

FMF Spark arrester for Factory 4.1 Code: 79-0909 Price: $29.00 Quantity in Basket: none