Just Arrived! Shop MBRP Exhaust

Need Specialized Support? Contact Us

Flowmonster Performance Muffler 3 in dual inlet & outlet 12599-FM 409 Stainless

$94.45 USD

Delivery and Shipping

Same day shipping, if ordered by 9:00 AM ET M-F

*Select products are made to order and ship within 4 business days.

Warranty Information

Customer service is our top priority and because we value your time and energy we ask you to visit our Contact Us page and reach out so that we may assist you in finding the correct warranty for your product. Please include your name, the name on the order, the order number, and the SKU of the product to ensure the quickest and most accurate response to your inquiry.

Description

Overview

The Flowmonster series of absorption style mufflers deliver a moderate tone for the enthusiast looking for a deeper, more aggressive exhaust note than most OE (Original Equipment) mufflers, unlike the racey exhaust note associated with "chambered" style mufflers.

Interior construction features 3.50 inch "straight-through" perforated 409 stainless steel tube surrounded by high-temperature sound absorption packing material which helps to deliver a deeper, mellower exhaust note. The internal design is reversible allowing the flexibility to be installed in either direction to best accommodate fitment with the intended vehicle. The fully MIG-welded 409 Stainless Steel material is embossed with the "FLOWMONSTER" logo on the case.

Features:
  • 409 Stainless Steel construction for superior corrosion resistance and good looks
  • Interior construction features high-temp interior sound absorption material delivering a deeper, mellow exhaust tone
  • Perforated High-Flow straight-through tube design for increased exhaust flow
  • Moderate increase in interior tone over most OE mufflers
  • A stainless steel performance muffler at an economical price
  • Internal Design is reversible allowing flexibility to be installed in either direction
  • Sold Individually
  • This is a Universal Fit muffler - Not a Direct fit. Some adaption may be required for proper fitment on some applications
Specs
Body Height (in) 5
Body Length (in) 22
Body Width (in) 11
Finish Natural
Fitment Universal
Inlet Connection Type Pipe Connection
Inlet Diameter (in) 3
Inlet Position Dual
Material 409 Stainless Steel
Muffler Series Flowmonster
Muffler Type Absorption / Glasspack
Outlet Connection Type Pipe Connection
Outlet Diameter (in) 3
Outlet Position Dual
Overall Length (in) 28
Reversible Yes
Shape Oval
Sound Level Moderate Sound
Type of Muffler Absorption
Part Number 12599-FM

Reviews (1)

Customer Reviews

Based on 1 review
100%
(1)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
A
Auric.R B.
Monster muffler

After a lot of asking , finally got a invoice that can be used for customs ,wished that they understood me earlier,but i finally got it thru customs and had to pay 111.50 dollar for shipping overseas so it was not cheap to get it , but super happy has an awesome sound and hope this will last a while before all the fiber cloth burns out in the exhaust , time will tell

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Customer Reviews

Based on 1 review
100%
(1)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
A
Auric.R B.
Monster muffler

After a lot of asking , finally got a invoice that can be used for customs ,wished that they understood me earlier,but i finally got it thru customs and had to pay 111.50 dollar for shipping overseas so it was not cheap to get it , but super happy has an awesome sound and hope this will last a while before all the fiber cloth burns out in the exhaust , time will tell

Flowmonster

Flowmonster Performance Muffler 3 in dual inlet & outlet 12599-FM 409 Stainless

$94.45 USD

Overview

The Flowmonster series of absorption style mufflers deliver a moderate tone for the enthusiast looking for a deeper, more aggressive exhaust note than most OE (Original Equipment) mufflers, unlike the racey exhaust note associated with "chambered" style mufflers.

Interior construction features 3.50 inch "straight-through" perforated 409 stainless steel tube surrounded by high-temperature sound absorption packing material which helps to deliver a deeper, mellower exhaust note. The internal design is reversible allowing the flexibility to be installed in either direction to best accommodate fitment with the intended vehicle. The fully MIG-welded 409 Stainless Steel material is embossed with the "FLOWMONSTER" logo on the case.

Features: Specs
Body Height (in) 5
Body Length (in) 22
Body Width (in) 11
Finish Natural
Fitment Universal
Inlet Connection Type Pipe Connection
Inlet Diameter (in) 3
Inlet Position Dual
Material 409 Stainless Steel
Muffler Series Flowmonster
Muffler Type Absorption / Glasspack
Outlet Connection Type Pipe Connection
Outlet Diameter (in) 3
Outlet Position Dual
Overall Length (in) 28
Reversible Yes
Shape Oval
Sound Level Moderate Sound
Type of Muffler Absorption
Part Number 12599-FM
View product