Pro Circuit T-6 Stainless Steel Exhaust
MSRP: $899.95
$719.96
Exact Fitment Guarantee
The Pro Circuit T-6 Stainless Steel Exhaust System delivers the exact same championship-winning power curve, stepped header architecture, and race-tuned internal geometry as the flagship Ti-6 titanium line, but is constructed from rugged, cost-effective high-grade stainless steel. Engineered as an ideal solution for privateer racers, weekend motocross competitors, and aggressive off-road riders, the T-6 provides exceptional structural durability, roost impact resistance, and maximum horsepower gains without the premium price of full titanium.
The T-6 system features a multi-stepped stainless steel header pipe, stainless steel mid-pipe, and a brushed aluminum silencer canister with a CNC-machined aluminum end cap. The stainless steel construction provides superior resistance to denting from heavy roost, rocks, and tip-overs compared to thin-wall titanium. Internally, the T-6 utilizes an asymmetrical core design that optimizes backpressure and scavenging velocity, resulting in crisp low-end pickup, a potent midrange surge, and broadened top-end over-rev. The system comes equipped with a removable USFS-approved spark arrestor, making it fully legal for transitions between closed-course motocross tracks and state-regulated forestry trails.
- Header & Mid-Pipe Material: High-grade 304 stainless steel tubing
- Canister Body: Brushed 6061-T6 aluminum extrusion
- End Cap: CNC-machined 6061-T6 billet aluminum
- Spark Arrestor: Removable United States Forest Service (USFS) approved screen insert
- Brackets: Heavy-duty TIG-welded reinforced mounting brackets
### Step-by-Step Installation & Safety Protocols Installation is straightforward using standard workshop metric sockets and wrenches. Remove the stock exhaust system, clean the cylinder head exhaust port, and install a fresh copper crush gasket. Mount the Pro Circuit stainless steel header, slide on the mid-pipe and silencer, and align the brackets with the subframe mounting holes. Torque cylinder head exhaust flange nuts to 14-16 Nm and subframe bolts to 20-24 Nm. Check that the exhaust clearance around the rear shock spring and plastic side panels exceeds 15mm.
### Maintenance & Care Maintenance involves repacking the aluminum canister with quality fiberglass exhaust packing every 25 to 35 operating hours to maintain sound compliance and protect the aluminum canister from internal heat damage. Wash with mild soap and water; stainless steel headers can be polished with Scotch-Brite to restore their bright metallic luster.
Frequently Asked Questions
Q: Does the T-6 produce the same horsepower as the titanium Ti-6?
A: Yes. The internal dimensions, pipe tapers, and resonance chamber designs of the T-6 and Ti-6 are identical, producing the same peak horsepower and torque curves. The difference is solely in construction materials (stainless steel/aluminum vs. full titanium).
Q: Is the spark arrestor removable on the T-6 system?
A: Yes, the T-6 includes a removable United States Forest Service (USFS) approved screen-type spark arrestor that can be quickly removed for closed-course motocross or reinstalled for trail riding.
Q: How does stainless steel compare to titanium for longevity?
A: Stainless steel is significantly more resistant to rock dents, fatigue cracks, and abrasive track wear than thin-wall titanium, making the T-6 an exceptionally durable choice for woods, enduro, and amateur racing.
Q: Will the T-6 header turn blue like titanium?
A: Stainless steel headers turn a warm golden-bronze color under high exhaust heat rather than the vivid blue-purple hue of raw titanium.