Free Shipping.

Expert Service.

Call 888-575-6570

FMF Mini PowerCore 4 Full Exhaust System

(9 reviews)

Item: 326960

$242.99 – $269.99

Select Your Vehicle - Fitment Guaranteed

FMF Mini PowerCore 4 Full Exhaust System


The Mini PowerCore 4 exhaust system is the best bang for your buck performance exhaust for your mini moto! Each Mini PowerCore 4 exhaust system features a Hi-Flo stainless steel core and formed end caps, an aircraft grade aluminum canister and a durable stainless steel header. It's pounds lighter than stock and produces the kind of power you can feel!

  • Ideally suited for mini-moto and offroad bikes with the stock cylinder bore
  • Stainless steel Hi-Flow header with better flow over the stock design for improved throttle response and greater engine power output, especially at low RPMs
  • Hi-Flo muffler core and end cap
  • Choose between a straight-through design with no spark arrestor or a spark-arrested version for ORV trail use
  • Pounds lighter than stock
  • Made in the USA
Specification Details
Bore Varies (make selection above)
Country of Origin USA
Header Hi-Flo
Header Construction Stainless Steel
Muffler End Cap Stainless Steel
Muffler Sleeve Aluminum
Size Over Standard Varies (make selection above)
USFS Approved Spark Arrestor Varies (make selection above)

Vehicle Fitment


Fitment is guaranteed or your money back plus free return shipping.
Don’t waste time installing a product that doesn't fit. We worked hard ensuring that this product is an exact fit on the vehicles listed below.

Honda
  • CRF100F 2004-2009, 2011-2013
  • CRF110F 2013-2018
  • CRF125F 2014-2018
  • CRF125F Big Wheel 2014-2018
  • CRF50F 2004-2009, 2011-2022
  • CRF70F 2004-2009, 2011-2012
  • CRF80F 2004-2009, 2011-2014
  • XR100R 1986-2003
  • XR50R 2000-2003
  • XR70R 2001-2003
  • XR80R 1986-1988, 1990, 1993-2003
Kawasaki
  • KLX110 2002-2020
  • KLX110L 2010-2020
  • KLX110R 2021-2023
  • KLX110R L 2021-2023
Suzuki
  • DR-Z110 2003-2005
Yamaha
  • TT-R110E 2008-2009, 2011-2024
  • TT-R125 2000-2005
  • TT-R125E 2003-2009
  • TT-R125L 2000-2008
  • TT-R125LE 2003-2009, 2011-2024
  • TT-R50E 2006-2009, 2013-2014
  • TT-R90 2000-2004

Customer Reviews

Write Review

FMF Mini PowerCore 4

By   on  Verified Purchaser

Bought an FMF exhaust for my 2000 xr100. The exhaust fit perfect.


FMF Pipe KLX 110

By   on  Verified Purchaser

Fit perfect! No issues at all!


Perfect fit

By   on  Verified Purchaser

Perfect fit and definitely added power and good sound.


Excellent

By   on  Verified Purchaser

Excellent fit, very fast shipping.


FMF Mini PowerCore 4 Exhaust

By   on  Verified Purchaser

Good price and great support.


Installing the new FMF Powercore 4

By   on  Verified Purchaser

The FMF pipe bolts up great. The stock heat shroud didn't bolt up that well. Had to do a little drilling on the brackets to get it to line up. Other than that I was pleased with the new pipe.


Great Part and Service

By   on  Verified Purchaser

The exhaust system was just what we needed, we've installed it, and our son is happily riding again.


Great FMF quality exhaust for little bikes!

By   on  Verified Purchaser

Great little bike exhaust. Fit right up perfectly. Added a good look and some sound. And also I am sure a little bit of power.


Mini PowerCore 4

By   on  Verified Purchaser

Received early perfect fit, adds horsepower and great sound as well.


How many stars would you give this product? Write a review.

Write Review

Questions & Answers

Ask Question

Will this fit my xr100r 2001

Yes, there is a system for that 2001 XR100R. Just be sure to select that bike before adding the system to your cart for checkout.

By Andy
Answer Question

I'm looking for exhaust for a 2002 xr80r what is the correct exhaust for that bike?

Simply choose 2002 Honda XR80R from the vehicle selection drop down box, add it to your cart and you will get the correct exhaust.

By Andy
Answer Question

Will this fit a 1986 Honda TRX70 ?

FMF does not currently produce an exhaust that is compatible with the 1986 Honda TRX70 at this time.

By Staff
Answer Question

Will this work with a 26mm performance carburetor?

You would have no problem using this exhaust with a 26mm carb. If you also have a larger than stock Big Bore kit, you could step up into the larger diameter pipe for the XR/CRF50. You can find that pipe by searching "FMF Big Bore Mini PowerCore 4 Exhaust System" in our store search bar at the top of the page.

By Staff
Answer Question

What is the proper jets with this exhaust

The exact jetting requirements vary from machine-to-machine. No less, we do have a range of Dynojet Carburetor Jet kits that include everything you need to properly fuel any of the models listed here upon installation of this exhaust on your mini motorcycle.

By Staff
Answer Question

Can u run it without jetting

No, you can't install this exhaust on an otherwise stock machine and expect it to run correctly. Basically, any time you change the way air gets into or out of, the motor, you'll want to adjust fueling appropriately to maximize any performance gains available from the new setup. The good news is that we have a range of Dynojet carburetor jet kits that include everything you need to get the most out of your new exhaust. Plus, the included instructions explain exactly how to go about installing the jets and configuring it to run correctly with the new FMF exhaust.

By Staff
Answer Question

Will this fit a new crf 50 2018?

Yes, if you were to choose the 2018 Honda CRF50F FMF exhaust from our fit guide, you'd receive the correct exhaust to fit your machine! You can choose this exhaust with, or without, a spark arrestor to fit your exact riding needs. In the instance you plan on taking the '50 to any public trails, you'll certainly want to choose the USFS spark arrestor-equipped FMF exhaust in our fit guide.

By Staff
Answer Question

What is a spark arrestor?

A spark arrestor is just that - a device within the muffler that prevents hot sparks from exiting the exhaust and causing a forest fire. If you're going to ride your bike on any public trail, a USFS-approved spark arrestor must be in the exhaust. The arrestor itself is little more than a screen within the exhaust. If stopped by a park ranger or other government agent when riding on public lands, you can expect them to examine the exhaust for that part. Basically, they just put a stick in the muffler to feel for said arrestor.

By Staff
Answer Question

Does it shoot flames?

If your bike is properly jetted, it shouldn't shoot much in the way of flames. As with any exhaust system on a carbureted bike, you will need to adjust fueling in order to prevent the bike from throwing flames out of the pipe. To do that, we recommend an FMF jet kit to go with any FMF Mini PowerCore 4 Full Exhaust System we sell.

By Staff
Answer Question

Is it louder than the stock?

Oh yes it is! FMF's mini-moto exhausts are all significantly louder than stock. It'll wake up the bike and if jetted properly, you'll get a pretty good power gain, too!

By Staff
Answer Question

Have a question? Please ask our experts and customers who own this product.

Ask Question