FMF Factory 4.1 Muffler

FMF · #1821-2023 · Slip-Ons / Exhaust

Factory 4.1 muffler available in natural titanium or blue anodized titanium with titanium end caps
The lightest mufflers available
Superior power and performance - horsepower improved throughout the rpm range
Feature exclusive proprietary Chamber Core technology
Factory Forward Engineering centralizes mass, improves handling

$349.99

In stock. Ships in 2–4 business days · free shipping over $150.

Questions? Call the shop: 801-361-3010

Real shop · real humans · 1231 N 1300 W Ste A, Centerville, UT 84014

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Description & features8 features

Factory 4.1 muffler available in natural titanium or blue anodized titanium with titanium end caps
The lightest mufflers available
Superior power and performance - horsepower improved throughout the rpm range
Feature exclusive proprietary Chamber Core technology
Factory Forward Engineering centralizes mass, improves handling
Made from premium quality American materials
Customize with performance tuning inserts and spark arrestor module
Meet AMA sound requirements on most models; inserts available for others

Specifications9 specs

Model: Factory 4.1
Riding Style: Off-Road
Muffler Material: Titanium
Units: Each
End Cap Material: Stainless Steel
Type: Slip-On
Shipping weight: 3.87 lb
Package size: 25.3 × 8.3 × 3.9 in
Country of origin: USA

Fitment6 models · Kawasaki

Kawasaki6 models

KLX1402008–2020
KLX140G2017–2020
KLX140L2008–2020
KLX140R2021–2026
KLX140R F2021–2026
KLX140R L2021–2026

Fitment comes from the catalog data for this part. Double-check your year, model and trim before you order — or call the counter at 801-361-3010 and we’ll check it with you.

Part numbers

Salto part #: 1821-2023
FMF part #: 042383

Shipping

In stock. Ships in 2–4 business days by ground.

Ground shipping is $14.95, free on orders over $150. Stock is checked again before your card is charged.

Questions4 answers

Is it in stock?: Yes — it’s in stock right now. We check again the moment you order, before anything is charged.
How fast will it get to me?: Usually 2–4 business days by ground.
Will it fit my machine?: It’s listed for the models in the Fitment section above. Not sure about your trim or year? Call the counter at 801-361-3010 and we’ll check it with you.
Is this genuine FMF?: Yes. It’s new and genuine, straight from Salto — FMF part #042383.