Pro Circuit T-4 Exhaust System
Pro Circuit T-4 Exhaust System
Available in stock (5)
-
Estimated delivery: Feb 03 - Feb 07
About this product
About this product
The Pro Circuit T-4 Exhaust System is engineered to deliver enhanced throttle response and increased power across the RPM range. This exhaust system is perfect for riders looking for improved performance and ease of maintenance.
Description
The T-4 exhaust system from Pro Circuit is designed with advanced technology to ensure lightning-fast throttle response, giving you the edge you need on the track or trail. Rigorously tested on both the track and dyno, this full system provides proven performance gains. The system features steel Allen head screws, which simplify the repacking process, ensuring easy maintenance. The exclusive E-glass pillow packing provides optimal sound deadening and performance longevity. This system's aluminum muffler and stainless steel components offer the perfect balance of weight savings and durability. The included USFS-approved spark arrestor offers versatility, allowing removal for closed-course racing. Upgrade your ride with the Pro Circuit T-4 exhaust system and experience a noticeable improvement in power and responsiveness.
Features & highlights
- Experience lightning-quick throttle response thanks to the advanced design.
- Benefit from proven performance gains validated through extensive track and dyno testing.
- Enjoy simplified maintenance with steel Allen head screws for easy repacking.
- Utilize exclusive E-glass pillow packing for superior sound deadening and long-lasting performance.
- Comes with a USFS-approved spark arrestor, removable for closed-course racing.
Technical specifications
- Brand: Pro Circuit
- Product Name: Exhaust System
- Type: Full System
- Design/Configuration: 1-Into-1 System
- Muffler Material: Aluminum
- Muffler Color/Finish: Brushed
- End Cap Material: Stainless Steel
- End Cap Style: Conical
- Pipe Material: Stainless Steel
- Material: Aluminum, Stainless Steel
Important to know
The included USFS-approved spark arrestor can be removed for closed-course racing.
Shipping & Return
Shipping & Return
Free shipping to GLS parcel shop parcel box for purchases over DKK 1,000.
GLS home delivery costs DKK 59.
We do our best to ship your order as quickly as possible. All orders are generally packed within 24 hours on weekdays.
There is a 14-day return policy. Read more
Parts Denmark Info
Parts Denmark Info
Parts Denmark is a new webshop based in Denmark. We have a physical location you can visit (No showroom yet), and we have both email and phone support in our opening hours.
Our company info is:
Parts Denmark ApS
VAT: DK45974758
Dam Holme 11
3660 Stenløse, Denmark
hello@partsdenmark.com
+45 222 333 29
Best regards,
William Svendsen & Martin Høyer (Owners)
Specifications
PRO CIRCUIT
4S03125
Exhaust System
Aluminum
Stainless Steel
Aluminum, Stainless Steel
Full System
Each
Stainless Steel
Conical


Who is behind Parts Denmark
Martin and William are the duo behind Parts Denmark — an unlikely but awesome combo of a tech-savvy young IT wizard and a seasoned motorcycle guru who’s seen (and fixed) it all. Together, we’ve built a team with big ambitions, plenty of passion, and a shared mission to create great things — side-by-side with you.

