Product images and videos are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Exhaust› Mufflers and Resonators
Flowmaster
Outlaw Series Race Muffler Outlaw Series Race Muffler Shorty 409SS 3 Inch Center In 3 Inch Center Out Aggressive Flowmaster
SKU: F00L 815430S
Moderate — 2–4 hours
Overview
Show original supplier description
Part #: 815430S
Flowmaster's 3.00 inch Outlaw Shorty Race Muffler is intended for race classes requiring mufflers but do not have a set sound reduction rule. The muffler has a 4.00 inch diameter body that is only 6.50 inches long.The muffler is constructed with 409S Stainless Steel.Flowmaster ReliabilityRace proven technologyAggressive performance toneStainless steel construction
Features:
- Durable Fully Welded 16 Gauge Aluminized Steel
- Flowmaster Reliability
- Round Case Allows Install In Limited Space Apps
- Race proven technology
- Designed for Maximum Horsepower and Torque
- Aggressive performance tone
- Minimal Decibel Reduction
- Stainless steel construction
- Race Application Where Muffler Rules are in Effect
- No Internal Packing To Blow Out
- Premium Flowmaster Quality
Outlaw Series (TM) Race Muffler | Shorty | 3.0 in. Center Inlet/Center Outlet | 17.0 in. Overall Length | 409 Stainless Steel
This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Fitment
Fitment Guaranteed
Don’t gamble
on fit.
Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | Flowmaster |
| Part Number | F00L 815430S |
Videos
A Must-Have for Active Exhaust 2024 Mustangs?! Flowmaster Axle-Back Exhaust Install
The ONLY Flowmaster Video you NEED to watch
2018 Chevrolet Silverado z71 5.3L w/ Flowmaster Outlaw Muffler
Jeep JK Exhaust Install - Flowmaster Outlaw - Review and After Videos
Why the Flowmaster Pro Series Muffler is a Game Changer | Sound Check
2009 Chevy Silverado 5.3L V8 Exhaust w/ FLOWMASTER OUTLAW!
2022 Chevy Silverado RST 5.3L V8 w/ FLOWMASTER OUTLAW!
How to Install Flowmaster Outlaw Exhaust System on a 2019 Ram 1500
RAM 1500 5.7L HEMI V8: FLOWMASTER SUPER 10 Vs FLOWMASTER OUTLAW!
2016 Chevy Silverado LT 5.3L V8 DUAL EXHAUST w/ FLOWMASTER OUTLAW!
About MOTORMIA
Buy with Confidence
Returns & Fitment
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
View Full Return PolicyShipping
Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.
Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.
View Full Shipping Policy