Pro Circuit T-4 Exhaust System 4H00080 - Honda XR80R / XR100R 1985-2000

Product Description

The Pro Circuit T-4 Exhaust System is engineered to provide lightning-quick throttle response and enhanced power delivery for your classic Honda trail or pit bike. Extensively track- and dyno-tested, this 1-into-1 full system optimizes performance across the entire powerband.

Featuring a brushed aluminum muffler canister paired with durable stainless steel components and a conical stainless steel end cap, the T-4 system utilizes exclusive E-glass pillow packing for superior sound absorption. It also comes equipped with steel Allen head screws for easy repacking and a USFS-approved spark arrestor that can be removed for closed-course competition.

Top Features: Pro Circuit T-4 Exhaust System

• Advanced 1-into-1 design ensures lightning-quick throttle response
• Extensively track- and dyno-tested for verified power improvements
• Equipped with steel Allen head screws to make routine muffler repacking simple
• Utilizes exclusive E-glass pillow packing for optimal sound dampening
• Includes a USFS-approved spark arrestor that is fully removable for closed-course racing

Please review the detailed compatibility data below to ensure an exact fitment match for your dirt bike before finalizing your purchase.

Fitment List

Frequently Asked Questions

Q: Can the spark arrestor be removed for track riding?
A: Yes, it includes a USFS-approved spark arrestor that can be easily removed when riding in closed-course racing environments.

Q: Does this package include both the header and the muffler?
A: Yes, the T-4 system is a complete 1-into-1 full exhaust package designed to replace your stock header and muffler assembly.

Expert Pro-Tip: When installing a new full exhaust system, always use new gaskets at the cylinder head port, apply a high-temperature silicone sealant to slip-joint connections to prevent exhaust leaks, and leave all mounting hardware loose until the complete system alignment is verified.

Recommended Pairings:

• Honda Mini Pit Bike Upgrades & Accessories
• Honda 4-Stroke Performance Parts & Upgrades
• Engine Rebuild Kits & Components

At Moto-House MX, we carry the best brands in motocross and off-road performance. Our team has over 40 years of experience helping riders get more out of their machines. We pride ourselves on great customer service, and every item ships FAST - straight to your door.

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