In Pro-Circuit’s exhaust lineup, the T-4 S/A Silencer is a four-stroke option that manages to pack versatility, peak performance, and a light weight into the same exhaust all at one time.
Pro circuit does it by starting with a lightweight construction of premium aluminum and stainless steel before they integrate features like a removable USFS spark arrestor, a tunable end cap, and an optional quiet core insert that helps tame your bike’s decibels.
Together these features let the T-4 S/A give you a reliable power increase in a form that’s versatile enough for unrestricted track use, riding on protected trails, or lowering your sound level on crowded trails.
Lightweight, strong aluminum and stainless construction
Increases power and throttle response
Tunable end cap alters power band to rider’s preference
Attaches to both OEM and Pro Circuit header pipes
Included USFS approved screen-type spark arrestor
Removable end cap for simple servicing/repacking
Round aluminum canister body and extruded aluminum end cap
Nickel plated connector
Quiet core insert available for reduced noise (sold separately)