Engine Performance

O2 - Cap - M18

18mm x 1.50 - O2 Bung

The O2 Weld-In Bungs from HMF work specifically for our high-end exhaust systems These bungs are made from Stainless Steel and fit standard bosch O2 sensors.  Fitting Bung, Weld-In Oxygen Sensor Stainless Steel 18mm

18mm - 12mm O2 Bung Adapter

Made from high-quality stainless steel, this bung adapter screws into an 18mm bung for use with some 12mm narrow-band O2 sensors.  Outside thread is M18x1.5 and the inside thread is M12x1.25. Go from 18mm to 12mm bung size Outside Thread: M18...

12mm x 1.25 O2 Bung Cap

The 12mm O2 Cap from HMF works when using an O2 simulator and the O2 port on the pipe needs closed.  The  12mm O2 Cap is plated and has a 12mm x 1.25 Thread size. Oxygen Sensor Cap Plated 6mm Allen 12mm x 1.25 Thread...

12mm x 1.25 O2 Bung

The O2 Weld-In Bungs from HMF works with high-end after-market exhaust systems. These bungs are made from Stainless Steel and fit standard bosch O2 sensors.  Fitting Bung, Weld-In Oxygen Sensor Stainless-Steel 12mm

PRO R SLIP-ON

When it comes to designing exhausts, it is imperative that they not only look and sound great, but also perform. Trinity Racing has spent countless hours trying to perfect their new slip-on for the RZR Pro R, so that it checks off all of the boxes...

Polaris RZR Trinity Dual Slip on exhaust

Description: Newly Designed Stage 5 System 304 brushed stainless steel mid & head pipes  Dual aluminum mufflers black coated Fully Tig Welded 6061 Billet Muffler Clamps  6061 Billet Machined Exhaust Tips Oxygen sensor bung USFS...