Join Us in Donating to the Red Cross Wildfire Relief Fund by Donating $1 at Checkout
Account
Your Best Ride Sweepstakes 13 Weeks of Awesome Giveaways ENTER NOW >

4-Stroke Exhaust Systems

Refine

105 Results

FMF
Powercore 4 Slip-On Exhaust - 4-Stroke

$130.49 - 323.99
Sale
Up to 10%
5 out of 5 stars (155) reviews

Pro Circuit
T-6 Complete Exhaust

$331.99 - 765.99
Sale
Up to 10%
5 out of 5 stars (8) reviews

Yoshimura
RS-4 Titanium Full System Exhaust

$854.05 - 1072.55
Clearance
Up to 5%
5 out of 5 stars (9) reviews

Pro Circuit
T-6 Slip-On Exhaust

$342.77 - 737.99
Clearance
Up to 30%
4.5 out of 5 stars (12) reviews

FMF
Powercore Slip-On Exhaust

$341.99 - 350.99
Sale
Up to 10%
4.5 out of 5 stars (14) reviews

FMF
Factory 4.1 RCT Full Exhaust System

$517.48 - 1079.98
Sale
Up to 10%
4.5 out of 5 stars (4) reviews

Yoshimura
RS-9T Complete Exhaust With Stainless Header - Dual

$854.05 - 909.00
Sale
Up to 5%
5 out of 5 stars (12) reviews

Yoshimura
RS-9T Complete Exhaust With Titanium Header - Dual

$1329.05
Sale
Save 5%
4.5 out of 5 stars (6) reviews

FMF
Powercore 4 Complete Race Exhaust Stainless Hi-Flo Header

$206.99 - 233.99
Sale
Up to 10%
5 out of 5 stars (62) reviews

FMF
Factory 4.1 Dual RCT Complete Exhaust With Titanium Megabomb

$1124.99 - 1349.99
Sale
Up to 10%
5 out of 5 stars (7) reviews

FMF
Powercore 4 Complete Exhaust With Stainless Hi-Flo Header

$206.99 - 341.99
Sale
Up to 10%
5 out of 5 stars (39) reviews

Yoshimura
RS-2 Comp Series Full System Exhaust

$339.00 - 699.00
Clearance
Up to 10%
5 out of 5 stars (47) reviews
Video Available

Yoshimura
RS-4 Pro Series Titanium Full System Exhaust

$896.36 - 1101.05
Clearance
Up to 10%
5 out of 5 stars (1) review
Video Available

Yoshimura
RS-9D Complete Exhaust With Stainless Header - Dual

$806.55 - 1325.25
Clearance
Up to 5%
4.5 out of 5 stars (5) reviews
Video Available

Yoshimura
LE Tim Gajser Signature RS-9 Full System Exhaust

$1705.50
Clearance
Save 10%
4 out of 5 stars (1) review

Yoshimura
RS-9D Complete Exhaust With Titanium Header - Dual

$1262.55 - 1329.05
Sale
Up to 5%
Video Available

FMF
Factory 4.1 Full System Exhaust - Mini

$359.99 - 404.99
Sale
Up to 10%

FMF
Factory 4.1 RCT Complete Exhaust With Titanium Megabomb

$629.99 - 1034.99
Sale
Up to 10%
4.5 out of 5 stars (11) reviews

Pro Circuit
T-6 Full-System Exhaust

$346.99 - 368.99
Sale
Up to 10%

Yoshimura
RS-4 Full System Exhaust

$540.55 - 968.05
Clearance
Up to 19%
4.5 out of 5 stars (20) reviews

FMF
Factory 4.1 RCT Complete Exhaust With Stainless Megabomb

$629.99 - 787.99
Sale
Up to 10%
5 out of 5 stars (3) reviews

FMF
Powercore 4 Complete Exhaust Stainless Hi-Flo Header

$233.99
Sale
Save 10%
5 out of 5 stars (12) reviews

FMF
Factory 4.1 Dual RCT Complete Exhaust W/ Stainless Megabomb

$877.99 - 1169.99
Sale
Up to 10%
5 out of 5 stars (7) reviews

Pro Circuit
Ti-6 Pro Complete Exhaust

$924.99 - 1118.21
Sale
Up to 10%
4.5 out of 5 stars (9) reviews

Yoshimura
RS-4 Comp Series Complete Exhaust With Stainless Header

$569.05 - 689.00
Sale
Up to 5%
4 out of 5 stars (2) reviews

Pro Circuit
T-4 Complete Exhaust System

$236.99 - 737.99
Sale
Up to 10%
5 out of 5 stars (56) reviews

Pro Circuit
T-6 Complete Exhaust - Dual

$845.99 - 893.99
Sale
Up to 10%
5 out of 5 stars (1) review

Big Gun
Evo R Complete Exhaust

$512.99 - 569.99
Sale
Up to 10%
4.5 out of 5 stars (26) reviews

Pro Circuit
T-4 GP Complete Exhaust

$709.99 - 737.99
Sale
Up to 10%
5 out of 5 stars (5) reviews

Pro Circuit
Ti-6 Complete Exhaust - Dual

$1189.99 - 1369.99
Sale
Up to 10%
5 out of 5 stars (3) reviews

Pro Circuit
Ti-6 Pro Complete Exhaust - Dual

$1189.99 - 1369.99
Sale
Up to 10%

Pro Circuit
Ti-5 Complete Exhaust - Dual

$1254.99
Sale
Save 10%
5 out of 5 stars (2) reviews
Video Available

FMF
Q4 Hex Exhaust With Megabomb Header and Side Panel

$607.99
Sale
Save 10%
5 out of 5 stars (1) review

Akrapovic
Racing Full System Exhaust With Spark Arrestor

$604.15 - 1188.95
Sale
Up to 5%
5 out of 5 stars (2) reviews

Pro Circuit
Ti-6 Complete Exhaust

$899.99 - 1007.99
Sale
Up to 10%
5 out of 5 stars (4) reviews

Pro Circuit
Ti-4R Complete Exhaust

$924.99 - 944.99
Sale
Up to 10%
4.5 out of 5 stars (6) reviews

Pro Circuit
Ti-5 Complete Exhaust

$944.99
Sale
Save 10%
5 out of 5 stars (2) reviews
Video Available

Graves
Works Stainless Full System Exhaust

$902.45
Sale
Save 5%
5 out of 5 stars (1) review

Pro Circuit
TI-4 GP Complete Exhaust

$402.99 - 898.99
Sale
Up to 10%
5 out of 5 stars (1) review

Pro Circuit
T-4R GP Complete Exhaust

$737.99
Sale
Save 10%
5 out of 5 stars (5) reviews

Pro Circuit
T-5 Complete Exhaust

$573.77 - 737.99
Clearance
Up to 30%
5 out of 5 stars (2) reviews

FMF
Factory 4.1 Titanium Slip-On RCT - Carbon Fiber

$494.99 - 607.49
Sale
Up to 10%
5 out of 5 stars (2) reviews

Yoshimura
RS-2 Comp Series Slip-On Exhaust

$339.00 - 419.00
Sale
Up to 5%
5 out of 5 stars (15) reviews
Video Available

Pro Circuit
T-4 Slip-On Exhaust - Dual Without Midpipe

$496.99
Sale
Save 10%
5 out of 5 stars (3) reviews

FMF
Factory 4.1 RCT Slip-On Exhaust

$337.49 - 607.49
Sale
Up to 10%
5 out of 5 stars (88) reviews

FMF
Factory 4.1 Slip-On Exhaust

$359.99 - 404.99
Sale
Up to 10%
4.5 out of 5 stars (14) reviews

FMF
Factory 4.1 RCT Slip-On Exhaust - Dual

$629.99 - 899.99
Sale
Up to 10%
5 out of 5 stars (10) reviews

Yoshimura
RS-4 Slip-On Exhaust

$359.00 - 589.00
Clearance
Up to 5%
5 out of 5 stars (6) reviews
Video Available

FMF
Q4 Hex Spark Arrestor Slip-On Exhaust With Side Panel

$350.99 - 359.99
Sale
Up to 10%
5 out of 5 stars (1) review

FMF
Factory 4.1 Slip On Exhaust - Mini

$224.99 - 269.99
Sale
Up to 10%
3 out of 5 stars (1) review

FMF
Powercore 4 HEX Slip-On Exhaust

$314.99 - 404.99
Sale
Up to 10%
5 out of 5 stars (38) reviews

FMF
Q4 Spark Arrestor Slip-On Exhaust

$287.99 - 350.99
Sale
Up to 10%
4.5 out of 5 stars (40) reviews

FMF
Q4 Hex Spark Arrestor Slip-On Exhaust

$341.99 - 431.99
Sale
Up to 10%
4.5 out of 5 stars (25) reviews

Most Recent Dirt Bike 4-Stroke Exhausts Reviews

FMF HEX Q4 Quiet Core Spark Arrestor Insert

FMF HEX Q4 Quiet Core Spark Arrestor Insert

Derek - Michigan
2 out of 5 stars
Got stuck in my PC4 Hex "I waited for almost 4 months to get this quiet insert. It finally came back in stock. When I went to instal it, The insert would slip half way in and get stuck. A tap with my palm was enough to wedge it in there so I couldn’t fully instal it or remove it... I ended up riding with it for about an hour. It IS a lot quieter than the bare PC4 Hex but either my pipe ID is under sized or this insert is oversized. For that, I give 2 stars as this insert was the reason I bought the PC4 in the first place. I even called FMF before I bought the insert to ensure I was ordering the right part number."
See all reviews for this product
FMF Factory 4.1 RCT Full Exhaust System

FMF Factory 4.1 RCT Full Exhaust System

Alex879 - NORTH CAROLINA
5 out of 5 stars
FMF 2011 KX250F "this has been amazing... noticed a performance difference with the bike. Sounds even better than stock does and fit perfect. Highly recommend"
See all reviews for this product