Pro Circuit T-4 Complete Exhaust System
Pro Circuit T-4 Complete Exhaust System

$224.99 - $701.99
10% Off - Save up to $77.96

Select your bike to see if this exhaust fits
Item #PRC000E

Read More
39 Reviews
4.9 out of 5 stars
5 Star   35 4 Star   4 3 Star   0 2 Star   0 1 Star   0
Write a Review

Write your review and you'll automatically be entered in our monthly drawing. Include an image or video to DOUBLE your chances to win!

Write Your Review Write a review to win $500
All Reviews
Example: New York, NY
Best Exhaust to run on the KlX110

This is the Best Exhaust to run on the KLX110's, Stock Motor or Big Bore this is the ONE !

Texas
Amazing

I bought this for my KLX 140L, the shipping was on time, and it fits my bike perfect, easy installation and did not have to re-jet the carburetor. This is the Secret Sauce I needed, makes a huge difference, sound has much more bass now, my throttle response has improved and overall my bike has gained power. Definitely worth buying.

Verified Purchaser
San Diego
Solid performance

Put this on a little Suzuki 125 cc makes it feel like 150 cc. Runs faster and stronger. Like a whole new bike.

Verified Purchaser
Fairview, NC 28730, USA
Exhaust

Overall good no complaints. Sounds great. Bought it for my boyfriend and he loves it!

North Carolina
Sounds great

It has an awesome sound and great performance. Would recommend to anyone.

Hawaii
2017 CRF150F

Bought this for the wife bike, really only to make it louder so she could hear where she was at on the throttle with others around, fit and finish was perfect! Sound was great, only reason its 4 stars vs 5 is because the exhaust does not come with a heat shield, nor two nuts welded on to carry the oem one over! Wife has taken many falls and the exhaust is holding up great, however she has melted her boot on it twice! Will be pulling it off to modify it to accept the OEM exhaust guard!

Verified Purchaser
San jose
Pro circuit T4 exhaust

It was a really easy installation but the pipe did not have the sound I was looking for was a little above stock and didn't have that deep sound of a stroke thumping.

Verified Purchaser

The exhaust came in and performed as expected

Vincennes, IN 47591, USA
Best on the market

Amazing. Just Amazing sound and performance.

Verified Purchaser
Houston, TX
2004 CRF 230 Pro Circuit Exhaust

I replaced the stock unit with the Pro Circuit T-4 Complete Exhaust System. Besides the better look overall, this pipe is about 3 to 4 pounds lighter, the fit and finish is perfect and the performance is very noticeable. It has a quiet idle but, sounds great when on the gas!!! This is a must buy if you have a few hours on your CRF.

See 10 More Reviews
63 Questions
Answered:   59
Not Yet:   4
Nathan
Q: If I installed tgis on my 2016 crf150f will i need to do any rejetting or anything or is it just a swap the stock and go kinda deal
4 days 4 hours ago
TiaGearhead
Top 250
4 days 4 hours ago
A: It is not necessary but is recommended if you find that your bike is not running correctly after installing
chloeamber1
Q: Pro Circuit T-4 Complete Exhaust System V.S FMF Factory 4.1
3 months 15 days ago
i have a ttr 125L 07 i am stil a new rider i am looking to change my exhasut on my bike i think bot exhaust are great from reviews and anyone give me personal recommention on what exhasut i should get base on my riding level between these two exhasuted
Michael
Top 10
3 months 15 days ago
A: Riding level has nothing to do with a side by side comparison of exhaust. You are correct in stating both exhausts have great reviews. Both are going to be the right noise level of what you are trying to achieve and both have the potential of improving your power range as you continue to build your bike to keep up with your ride ability. As a newer rider you will never use up the amount of power potential either one of these exhausts will provide for you so that solidifies that at this point it is of personal preference and nothing more. To further instate an idea of personal preference, both companies are on the leading forefront of keeping their budget conscious clientele in mind and for the quality of exhaust you are getting from either company, worth every penny they are charging. Kudos to you for doing some homework on the subject matter, but even as you improve as a rider, the technology is typically well beyond our skill levels at this point. So I ask you, if you were to choose a company to sponsor you, which one would you want it to be, because in reality, that is the only reason why I would choose one over the other at this point.
Joey
Q: Will it look as picture? because im looking at a T4 in ebay that looks a bit different.
4 months 8 days ago
klx 125
David
Top 10 Contributor
4 months 8 days ago
A: The picture is generic and will vary based off your bike model.
DrMoto
Q: Sound-reducing RC-4 Resonance Chamber
4 months 19 days ago
hello, i was wonder if the 2017 ttr 125 comes with the RC-4 Resonance chamber
Thumbs
Top 10
4 months 19 days ago
A: Pro Circuit isn't listing it as having that chamber for your model bike.
CRFguy
Q: Will I have to Rejet?
1 year 3 months ago
I have a 2006 Honda CRF150F and I was wondering if I get this exhaust would I have to rejet the bike or could I just leave it how it is? And is the sound better than if I were to just take the baffle out of the stock exhaust?
Gray
Q: What size end cap does this have ?
1 year 3 months ago
Ryan5149
Q: My Yamaha ttr 125 has the exhaust pipe on the right side, will this work on it?
1 year 5 months ago
LmanCrf
Q: Packing?
1 year 5 months ago
About how often will it have to be repacked?
Chris
Q: Will this fit my klx 125 2016?
1 year 8 months ago
MotoSportExpert
MotoSport Staff Expert
1 year 8 months ago
A: All products sold on MotoSport.com are for US models only. We unfortunately do not have product fitment for non-us models. Fitment for non-US models cannot be guaranteed.
mpiton62
Q: Out of stock.
1 year 11 months ago
Do you know when more will be in stock? Or a suggestion for a tithed pipe from my sons 2016 ttr50?
MotoSportExpert
Expert MotoSport Staff
1 year 11 months ago
A: Please call one of our sales professionals to inquire about special orders and availability.
Dirt Bike: 1-888-676-8853
1 - 10 of 63
Fitment
See all bikes that this part fits...
See Fitments
# Part Numbers
Product Variant Manufacturer Part #
Pro Circuit T-4 Complete Exhaust System 4H06150
Pro Circuit T-4 Complete Exhaust System 4H03230
Pro Circuit T-4 Complete Exhaust System N/A
Pro Circuit T-4 Complete Exhaust System 4S03125
Pro Circuit T-4 Complete Exhaust System 4QK08450
Pro Circuit T-4 Complete Exhaust System 4QK04700
Pro Circuit T-4 Complete Exhaust System 4K10110
Pro Circuit T-4 Complete Exhaust System 4QY02080
Pro Circuit T-4 Complete Exhaust System 4QH06450
Pro Circuit T-4 Complete Exhaust System 4QH04450
Pro Circuit T-4 Complete Exhaust System 4QH90090
Pro Circuit T-4 Complete Exhaust System 4Y08110
Pro Circuit T-4 Complete Exhaust System 4Y00125
Pro Circuit T-4 Complete Exhaust System 4Y00090
Pro Circuit T-4 Complete Exhaust System 4H00070
Pro Circuit T-4 Complete Exhaust System N/A
Pro Circuit T-4 Complete Exhaust System 4H85080
Pro Circuit T-4 Complete Exhaust System 4H04650
Pro Circuit T-4 Complete Exhaust System 4H03150
Pro Circuit T-4 Complete Exhaust System N/A
Pro Circuit T-4 Complete Exhaust System 4QH01250
Pro Circuit T-4 Complete Exhaust System 4QP96500
Pro Circuit T-4 Complete Exhaust System 4K08140
Pro Circuit T-4 Complete Exhaust System 4QP10170
Pro Circuit T-4 Complete Exhaust System 4QS07050
Pro Circuit T-4 Complete Exhaust System 4QS07090
Pro Circuit T-4 Complete Exhaust System 4Y06050
Pro Circuit T-4 Complete Exhaust System 4QY09450
Report an Error