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Dirt Bike 4-Stroke Complete Systems

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55 Results

FMF
Factory 4.1 RCT Full Exhaust System

$584.98 - 1125.98
Sale
Up to 10%
4.5 out of 5 stars (6) reviews

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

$929.00
4.5 out of 5 stars (7) reviews
Video Available

FMF
Powercore 4 Complete Race Exhaust Stainless Hi-Flo Header

$242.99
Sale
Save 10%
5 out of 5 stars (63) reviews

Yoshimura
RS-2 Comp Series Full System Exhaust

$409.00 - 739.00
Sale
Up to 10%
5 out of 5 stars (55) reviews
Video Available

Yoshimura
RS-3 Comp Series Full System Exhaust

$539.00 - 559.00
5 out of 5 stars (20) reviews
Video Available

Yoshimura
RS-4 Titanium Full System Exhaust

$1129.55
Sale
Save 5%
5 out of 5 stars (10) reviews

Yoshimura
RS-12 Full System Exhaust

$709.00 - 1259.00
4 out of 5 stars (2) reviews
Video Available

Yoshimura
RS-4 Full System Exhaust

$569.05 - 1023.14
Sale
Up to 19%
4.5 out of 5 stars (29) reviews

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

$832.99 - 1124.99
Sale
Up to 10%
4.5 out of 5 stars (12) reviews

FMF
Q4 Hex Exhaust With Megabomb Header and Side Panel

$629.99
Sale
Save 10%
5 out of 5 stars (1) review

Pro Circuit
T-4 GP Complete Exhaust

$778.99 - 810.99
Sale
Up to 10%
5 out of 5 stars (6) reviews

Dr. D
Complete Exhaust With Spark Arrestor

$274.95 - 637.95
4.5 out of 5 stars (23) reviews

Pro Circuit
Ti-6 Pro Complete Exhaust - Dual

$1308.99 - 1506.99
Sale
Up to 10%

KTM PowerParts
Akrapovic Evo Complete Exhaust

$1299.99
3 out of 5 stars (1) review

FMF
Factory 4.1 RCT Complete Exhaust With Stainless Megabomb

$719.99 - 1012.99
Sale
Up to 10%
5 out of 5 stars (4) reviews

Big Gun
Evo X Complete Exhaust

$305.99
Sale
Save 10%

FMF
Factory 4.1 Dual RCT Complete Exhaust W/ Stainless Megabomb

$1169.99
Sale
Save 10%
5 out of 5 stars (8) reviews

Yoshimura
TRS Comp Series Complete Exhaust With Stainless Header

$369.00
5 out of 5 stars (5) reviews
Video Available

Pro Circuit
Ti-6 Pro Complete Exhaust

$1038.99 - 1106.99
Sale
Up to 10%
4.5 out of 5 stars (9) reviews

Pro Circuit
T-6 Full-System Exhaust

$381.99 - 404.99
Sale
Up to 10%
5 out of 5 stars (3) reviews

FMF
Powercore 4 Complete Exhaust With Stainless Hi-Flo Header

$242.99 - 382.99
Sale
Up to 10%
5 out of 5 stars (44) reviews

Pro Circuit
T-6 Complete Exhaust - Dual

$930.99 - 981.99
Sale
Up to 10%
5 out of 5 stars (1) review

FMF
Powercore 4 Complete Exhaust Stainless Hi-Flo Header

$260.99
Sale
Save 10%
5 out of 5 stars (13) reviews

Pro Circuit
TI-4 GP Complete Exhaust

$441.99 - 986.99
Sale
Up to 10%
5 out of 5 stars (1) review

Akrapovic
Evolution Titanium Full System Exhaust With Spark Arrestor

$1238.95 - 1667.95
5 out of 5 stars (1) review

Pro Circuit
T-4 Complete Exhaust System

$259.99 - 810.99
Sale
Up to 10%
5 out of 5 stars (58) reviews

Pro Circuit
T-5 Complete Exhaust

$802.99 - 810.99
Sale
Up to 10%
5 out of 5 stars (2) reviews

Pro Circuit
T-6 Complete Exhaust

$363.99 - 841.99
Sale
Up to 10%
5 out of 5 stars (11) reviews

Pro Circuit
Ti-6 Complete Exhaust - Dual

$1308.99 - 1506.99
Sale
Up to 10%
5 out of 5 stars (3) reviews

Pro Circuit
Ti-5 Complete Exhaust - Dual

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

Big Gun
Evo R Complete Exhaust

$467.99 - 569.99
Sale
Up to 10%
4.5 out of 5 stars (26) reviews

Pro Circuit
Ti-6 Complete Exhaust

$899.99 - 1106.99
Sale
Up to 10%
5 out of 5 stars (5) reviews

Akrapovic
Racing Full System Exhaust With Spark Arrestor

$604.15 - 1188.95
Sale
Up to 10%
5 out of 5 stars (2) reviews

Pro Circuit
Ti-5 Complete Exhaust

$1038.99
Sale
Save 10%
5 out of 5 stars (2) reviews
Video Available

Pro Circuit
Ti-4R Complete Exhaust

$924.99 - 1038.99
Sale
Up to 10%
4.5 out of 5 stars (6) reviews

Dr. D
NS-4 Complete Exhaust

$384.95 - 912.99
4 out of 5 stars (8) reviews

Pro Circuit
T-4R GP Complete Exhaust

$810.99
Sale
Save 10%
5 out of 5 stars (5) reviews

Big Gun
Evo Mini Complete Exhaust

$233.95 - 467.99
Sale
Up to 10%
4.5 out of 5 stars (17) reviews

Yoshimura
RS-4 Comp Series Complete Exhaust With Stainless Header

$569.05 - 645.05
Sale
Up to 5%
4 out of 5 stars (2) reviews

Most Recent Dirt Bike 4-Stroke Complete Systems Reviews

Yoshimura RS-12 Full System Exhaust

Yoshimura RS-12 Full System Exhaust

Todd - NC
5 out of 5 stars
PROPS TO YOSHIMURA! "Purchased the RS-12 for my 2021 RM-Z450 directly from Yoshimura. I reached out directly to Yoshimura via email with a couple of questions and was welcomed with the industry's top-notch customer service. Responded the same day and got my order placed and shipped! Couple of things I'd like to highlight about the RS12 1. The packing is perfection. Yoshimura spared no cost when it came to 'custom' packaging, probably the best I have seen within our industry, Everything was thought out, not just thrown into a box. Very impressed. 2.The RS-12 has the best fit and finish I have seen on any exhaust system. It blows the other 'big' names out of the water, from the slip joints to the spring with the Yoshimura logo to the actual construction of the can, 10/10 would recommend. 3. Performance, now to the good stuff. The pipe really woke up the RM-Z450, the throttle response was the first thing I noticed as I started her up, drastically improved. Once I got a few motos on the bike, it really came to fruition how much R&D Yoshimura put into this system. Power increases exactly where you would want them (boosted bottom, stronger mid and ton of top-end pull), without sacrificing any part of the power band. Specifically for my RM-Z450, I used the MX-Tuner to create this custom map: https://www.keeferinctesting.com/motocross-testing/2021/5/7/optional-2021-rm-z450-mx-tuner-20-aggressive-map and that created amazing results, HIGHLY recommend that map if you have the MX Tuner on your ZOOK."
See all reviews for this product
Big Gun Evo Mini Complete Exhaust

Big Gun Evo Mini Complete Exhaust

Klotz - Detroit Mi
4 out of 5 stars
Sounds good… but "I just fitted this up to my 2006 CRF70F. I have a new Piranha 125 front clutch motor on the bike. It fits okay, I had to trim the pipe down about 3/8” to fit. The pipe rubs the clutch lever, that took some tweaking to sort out. The silencer was missing a bolt, and the spring to tie the silencer to the pipe is too short (albeit unnecessary given how tight the fit is anyway). All that being said, it really woke the bike up, and it sounds ridiculous, a much more throaty exhaust note. The exhaust is well built, sounds good, but the small details were amiss. Just ride a two stroke."
See all reviews for this product

Dirt Bike 4-Stroke Complete Systems for Sale

MotoSport.com offers 55 Dirt Bike 4-Stroke Complete Systems. A leader in our industry, we know you'll be satisfied with your 4-Stroke Complete Systems when you buy from us.

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