Yoshimura RS-4 Slip-On Exhaust w/ Spark Arrestor - GasGas EX/MC 450F (2021-2023)
Yoshimura RS-4 Slip-On Exhaust with Spark Arrestor for GasGas EX/MC 450F
Trail-ready RS-4 slip-on with USFS-approved spark arrestor pre-installed. Pentagonal muffler design delivers exceptional power with the convenience of bolt-on installation.
RS-4 Series Features:
- Pentagonal-shaped muffler
- Maximized internal volume
- Polyresonant duplex front chamber
- Stepped, two-stage core baffle
- Stainless steel mid-pipe
- Aluminum muffler sleeve
- Carbon fiber end cap
- USFS-approved spark arrestor INCLUDED
Fitment: GasGas EX 450F (2021-2023), GasGas MC 450F (2021-2023)
Ships fast from one of our 8 warehouses across the USA!
📦 Shipping Information
In-Stock Items:
- Most parts ship next business day
- Modquad parts: Monday–Thursday dispatch
Made-to-Order Items:
- Custom swingarms & A-arms: 2–4 weeks
- EVP exhaust systems: 2–4 weeks
- Sneakers: 1–2 weeks
Stock Guarantee: Items marked "In Stock" ship immediately. Made-to-order items are built fresh for you.
Questions? Contact us—we respond within 24 hours.
