Flowmaster · New
Flowmaster 09-21 Toyota Tundra 5.7L FlowFX Cat-Back DOS Exhaust System
MPN 717664 · Store SKU flo717664
Supplier stock checked 11/8/2026, 5:33:40 AM 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
This Flow FX® Cat-back exhaust system is for 2009-2021 Toyota Tundra with 4.0L, 4.6L, 4.7L or 5.7L engine and is a bolt-on emissions legal system with a moderately aggressive exterior sound and a moderate interior tone. The system features 304 stainless steel construction for long life, and a specially designed dual inlet Flow FX® "straight-through" performance muffler flowing into dual 2.50-inch mandrel-bent tailpipes for maximum performance. The tailpipes exit out the sides behind the rear wheels, which is beneficial for towing, and are finished off with a pair of large 4.50-inch black ceramic coated stainless steel tips. The system includes all necessary parts and hardware for easy at home installation and is covered by our Lifetime Limited Warranty. 2009-2021 Toyota Tundra with 4.0L, 4.6L, 4.7L or 5.7L engine, 2/4 Wheel Drive - Flow FX Stainless Steel Cat-back Exhaust System - Aggressive to moderate sound Flowmaster Flow FX Cat-back Exhaust System
Manufacturer fitment & guides
Check 717664 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
- Emissions acknowledgement required before purchase.
- California Proposition 65: Y
