Exhaust Accessories

Thunderheader Heat Shields Dyna and FXR Matching heat shields for you Thunderheader Exhaust system. Current lead time is up to 16 weeks on all Thunderheader Racing Products, we do not stock them.

TMF Exhaust Gaskets TMF Gaskets made from premium materials for long life and correct fitment. When choosing these for your Harley, you cannot go wrong! Features: High-quality products for long-term reliability Manufactured from premium fuel-resistant materials that will not creep, crack or become brittle Gaskets available in multiple types to best suit the intended application Extreme Sealing Technology (EST) gaskets feature embossed steel gaskets covered with a proprietary rubber material or solid copper, depending on the application Multi-Layer Steel (MLS) gaskets feature two outer Viton®-coated embossed spring steel layers with an inner steel layer to provide additional support CFM is a composite material with a steel tang center laminated to provide excellent heat tolerance without delaminating while providing a long lasting seal Single-Layer Steel (SLS) gaskets feature a stainless steel core and embossed outer surfaces that create a heavy-duty seal between the center steel layer and the gasket mating surfaces Aluminum Foamette Material (AFM) gaskets feature an aluminum core and a chemically blown, compounded nitrile synthetic rubber coating that is bonded to the outside layer; do not require gasket sealer Viton® gaskets feature a stainless steel core with a .001" thick coating of Viton rubber on both sides Made in the U.S.A. SOLD EACH (TWO REQUIRED)

Vtwin Exhaust Flange Kit Replace your rusty beat up flanges when your upgrading your exhaust system! Give your bike some love with out breaking the bank. Features: Chrome Finish  OEM Replacement Comes with Flange Clips

Fueling Exhaust Stud Kit Features precision rolled threads for optimum engagement to prevent galling and promote more consistent torque loading. Eliminates thread problems associated with chromed hardware. Tensile strength rated at 170,000 psi; superior and stronger than O.E.M. and stronger than grade 8 fasteners.

O2 Bungs Reducers Save yourself the money on buying a whole new pipe. These will allow you to purchase a 18mm o2 sensor pipe and run your stock 12mm bungs. Easy removal in case you upgrade to a wide band tuner. Features: 18-12mm Reducers Sold in Pairs

O2 Sensor Bypass Plug `10 Up  Features: Fits `10-Up Harley models?with OEM O2 Sensor wiring harnesses.

Replacement OEM Style O2 Sensors Features: These sensors are made for outstanding performance and manufactured to meet or exceed all OEM specs Direct fit, no modifications needed Extra hight temp Dual Shield End  Improved engine performance Made in the USA