Description
- Designed to be used with OEM stock head pipes or Pro Circuit head pipes
- Ultra-responsive performance
- Incredible horsepower gains when compared to stock
- Developed to increase the horsepower and torque throughout the power curve
- Aluminum/stainless construction for reduced weight and increased durability
- Strong mounting bracket(s) for increased durability
- Designed for easy disassembly and re-packing when needed
- Removable USFS approved spark arrestor
Johnny –
The T-4 slip on silencer is top notch, it was easy to install and delivers instant throttle response and way more power through the rpm range which is exactly what I was looking for to get more performance out of my XR400R.
Carl –
The T-4 slip on silencer by Pro Circuit is a pretty nice silencer for my XR400R. I’ve tried some other brands but this one adds power and seems higher quality than the others I’ve used.
Ron –
The T-4 slip on silencer is lightweight aluminum stainless that bolts on easy and really wakes up my XR400R it’s perfect.
Scott –
The T-4 slip on silencer is an affordable bolt on upgrade that noticeably improves the power and sound for XR400R riders looking to enhance their stock machine its easy to recommend for casual budget minded riders.
Louie –
Dude this T-4 silencer rips, has insane power gains over stock muffler, super crisp throttle response and very noticeable increase even at low rpms, thing blows away other slip-ons I’ve tried.
Ricky –
The Pro Circuit T-4 slip-on silencer really woke up my XR400R – the horsepower gains across the whole powerband are very noticeable and the quality is top-notch. I’m extremely satisfied and would highly recommend this silencer if you’re looking to improve the performance of your XR400R.