SuperTrapp Stout 4” Slip-Ons (MSRP starts at $735.00) are non disc-based, massive 4” Slip-Ons. The ’10 – ’13 models feature a newly-developed, tapered core. The streamlined, internal tapered end cap with recessed fasteners come pre-installed. The newly shaped inlets flow better into the OEM head pipe as well as SuperTrapp True Duals. SuperTrapp Stout Slip-on provide a heavy, broad spread power curve right from idle with a 9.3 (16%) hp and 10.5 (14%) torque gain over stock. At 95.6 dB at 2,000 rpm, or 2.4 dB over stock, these are SAE-J2825 sound compliant. 
SuperTrapp Stouts are compatible with chrome or black SuperTrapp True Duals as well as their Crossover Conversion Adapter Kit. SuperTrapp Stouts are available in chrome or black. Optional chrome or black end caps are available and sold separately as replacements or to mix and match for a customized look. They fit ’85 – ’14 Baggers and ’10 – ‘14 Tri-Glides and ’09 – ‘11 Street Glide Trikes. Stout 4” Slip-Ons are also available in a Kerker version with a more traditional core. Visit SuperTrapp.com for specific applications and additional product information. For more info, visit www.SuperTrapp.com or call 216-265-8400.
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