10 Series Delta Force
The 10 Series race mufflers are intended for racing applications and utilize Flowmaster's patented Delta Flow technology for maximum performance. The mufflers are a single chamber design. They are recommended for racing applications where a muffler is required without a set decibel limit to be met. These will provide a noticeable dB reduction over open headers.
Aluminized Steel
Part # Inlet Outlet
FLO 325108 2.5" Center 2.5" Center
FLO 9430109 3" Center 3" Center
FLO 9435109 3.5" Center 3.5" Center
FLO 954010-12 4" Center 4" Center
Part # Inlet Outlet
FLO 9430119 3" Offset 3" Center





Stainless Steel
Part # Inlet Outlet
FLO 8325108 2.5" Center 2.5" Center
FLO 8430109 3" Center 3" Center
FLO 8435109 3.5" Center 3.5" Center
Part # Inlet Outlet
FLO 8430119 3" Offset 3" Center
FLO 8435119 3.5" Offset 3.5" Center




Return to top


30 Series Delta Force
The Delta Force 30 Series race mufflers utilize Flowmaster's patented Delta Flow technology and are designed for race applications needing to meet the most stringent decibel level requirements at the track. These mufflers have excellent power characteristics with maximum sound reduction qualities.
Aluminized Steel
Part # Inlet Outlet
FLO 54030-12 4" Center 4" Center
FLO 965030-14 5" Center 5" Center
Part # Inlet Outlet
FLO 53531-12 3.5" Offset 3.5" Center
FLO 54031-12 4" Offset 4" Center
Part # Inlet Outlet
FLO 54033-12 4" Offset 4" Offset





Return to top


40 Series Delta Force
The Delta Force 40 Series race mufflers utilize Flowmaster's patented Delta Flow technology and feature excellent power characteristics with good sound reduction qualities. Recommended for all racing applications where mufflers are required with a substantial decibel reduction over open headers.
Aluminized Steel
Part # Inlet Outlet
FLO 335408 Low Profile 3.5" Center 3.5" Center
FLO 954040-10 4" Center 4" Center
FLO 965040-12 5" Center 5" Center
Part # Inlet Outlet
FLO
9430429
3" Center 3" Offset


Part # Inlet Outlet
FLO 53545-10 Same Side 3.5" Offset 3.5" Offset





Stainless Steel
Part # Inlet Outlet
FLO
8325408
2.5" Center 2.5" Center
FLO
8430408
3" Center 3" Center
FLO
8335408
3.5" Center 3.5" Center
Part # Inlet Outlet
FLO
8435409
3.5" Center 3.5" Center


Part # Inlet Outlet
FLO 853540-10 3.5" Center 3.5" Center
FLO 854040-10 4" Center 4" Center

Part # Inlet Outlet
FLO 8435419 3.5" Offset 3.5" Center
Part # Inlet Outlet
FLO 8435439 3.5" Offset 3.5" Offset
Part # Inlet Outlet
FLO 8435449 Same Side 3.5" Offset 3.5" Offset




Return to top


Scavenger Series
The Scavenger Series incorporates two types of technologies. The Scavenger Mufflers are a direct collector replacement that attach to the primary tubes of your header and help quiet the exhaust at high RPM's. The patented Scavenger Collectors and Cross-over pipes incorporate large "D" shaped ports to help scavenge the exhaust gases for a cleaner and more efficient burn in the combustion chambers.
Stainless Steel - Outlaw II
Part # Inlet Outlet
FLO 8178350 1 7/8" 3.5"


Return to top


Outlaw Series
Outlaw mufflers are designed to be connected directly to the header collectors or can be added into an existing exhaust system. Recommended for racing applications where a muffler is required without a set decibel limit to be met.
Aluminized Steel
Part # Inlet Outlet
FLO 15430 3" 3"



Part # Inlet Outlet
FLO 15430S "Shorty" 3" 3"
FLO 15435S "Shorty" 3.5" 3.5"
Part # Inlet Outlet
FLO 15440S "Shorty" 4" 4"
FLO 15450S "Shorty" 5" 5"



Stainless Steel
Part # Inlet Outlet
FLO 815425 2.5" 2.5"
FLO 815430 3" 3"
Part # Inlet Outlet
FLO 815425S "Shorty" 2.5" 2.5"
FLO 815430S "Shorty" 3" 3"




Return to top


Pro Series Outlaw
To address the increasing number of tracks around the country that are coming under pressure to regulate sound emissions, the Flowmaster Engineering team went to the drawing board with three goals; Maximum power, Maximum decibel reduction and Minimal weight. This exciting new line of race mufflers is the result of literally decades of Flowmaster involvement in the racing industry and were truly born at the track! Suited to all forms of motorsports where space and weight is a concern while still delivering maximum power. They are surprisingly quiet; netting a reduction of approximately 8-10 decibels over open headers and can be run with a turndown for even further noise reduction. Can be used on methanol or gas engines and/or, as an addition to an existing exhaust system for further sound reduction without a loss of power.
Aluminized Steel
Part # Inlet Outlet
FLO 13009130 3" 3"
FLO 13509130 3.5" 3"
FLO 13509135 3.5" 3.5"


Return to top