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SuperTrapp Stout 4” Slip-Ons are brewed to perfection! They quench the thirst of riders longing for beautifully, crafted, 4” Slip-Ons with a pleasant tone and unsurpassed performance gains.
These larger bodies are brewed to perfection. Available for ’95 – ‘12 Baggers and 2012 and earlier model Tri Glides.
These non disc-based, massive 4” Slip-Ons allow riders to make a bold statement with their newly developed core for the ’10 – ’12 models.
The streamlined, Internal Tapered, Billet Aluminum End Cap with recessed fasteners comes pre-installed and is a sign of the true craftsmanship that went into the design of these pipes.
The newly shaped inlets flow better into the OEM head pipe as well as SuperTrapp True Dual Head Pipes.
The SuperTrapp Stouts’ tapered core is minimally louder than stock for ’10 – ’12 FLH / FLT models.
SuperTrapp Stout Slip-Ons provide a heavy, broad spread power curve right from idle w/ a 9.3 (16%) hp and 10.5 (14%) torque gain over stock (measured on a stock 2010 FLH).
At 95.6 dB @ 2,000 rpm, or 2.4dB over stock. SuperTrapp Stouts are SAE-J2825 sound compliant.
SuperTrapp Stouts are compatible with our True Duals