S&S Cycle · New
S&S Cycle 2.25in Power Tune XTO Muffler Insert
MPN 550-1666 · Store SKU ssc550-1666
Supplier stock checked 11/7/2026, 10:14:23 PM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
The Muffler Inserts from S&S® are designed to fine-tune the Power Tune XTO Exhausts, allowing you to customize and increase/decrease the performance and decibel levels. 2.25"
Manufacturer fitment & guides
Check 550-1666 against the manufacturer’s application information below.
A manufacturer application guide is not available for this listing. Request the exact application from JuiceBuilt before payment.
Part-specific notes
- Not CARB approved. Destination and intended-use restrictions must be checked before sale.
- Emissions acknowledgement required before purchase.