Pro Circuit T-4 Slip-On Silencer 4T00400 - KTM 250 / 400 / 450 / 520 / 525 2000-2003

Product Description

The Pro Circuit T-4 Slip-On Silencer is developed to significantly increase horsepower and torque throughout the power curve for your KTM off-road or dual-sport motorcycle. Built to optimize exhaust flow, this slip-on delivers reliable performance gains and rugged durability on the trail.

Featuring a polished aluminum canister paired with a stainless steel mid-pipe, the T-4 includes steel Allen-head screws to make routine repacking a straightforward task. It also comes equipped with a wire-meshed spark arrestor that can be easily removed for closed-course racing.

Top Features: Pro Circuit T-4 Slip-On Silencer

• Developed to increase horsepower and torque throughout the power curve
• Polished aluminum canister paired with a durable stainless steel mid-pipe
• Includes a wire-meshed spark arrestor that can be removed for closed-course racing
• Steel Allen-head screws make muffler repacking an easy task
• Compatible for use with either OEM or Pro Circuit headers

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 this slip-on be used with a stock header pipe?
A: Yes, the T-4 slip-on can be used with either your factory OEM header or a Pro Circuit aftermarket header.

Q: Is the spark arrestor removable for track use?
A: Yes, it includes a wire-meshed spark arrestor that can be removed when riding in closed-course racing environments.

Expert Pro-Tip: When installing a slip-on silencer, apply a thin layer of high-temperature silicone sealant at the joint connection between the header and mid-pipe to prevent exhaust leaks, and leave mounting bolts loose until everything is aligned.

Recommended Pairings:

• KTM 4-Stroke Performance Parts & Upgrades
• KTM 2-Stroke Performance Parts
• Silencers & Exhaust Parts

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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