AT2 vs RS-5: Street Series Exhaust Comparison for CBR600RR
By Yoshimura R&D of America, Inc. | Published: 2026-10-22
Category: Comparisons
Compare Yoshimura AT2 and RS-5 Street Series slip-on exhausts for the CBR600RR. Learn sound, weight, and style differences to choose the right one.
Quick Answer
For a CBR600RR (07-08), the RS-5 offers a race-inspired carbon fiber look with a removable insert, while the AT2 provides a more affordable stainless steel option with a classic Yoshimura tone. Choose RS-5 for style and adjustability, AT2 for budget and durability.
Sound and Tone Differences
The RS-5 features a straight baffle with a removable low-volume insert, letting you adjust the sound level from a quieter street mode to a more aggressive track tone. The AT2 also has a straight baffle but is designed with a single polished stainless steel turn-down tip, producing a clear, classic Yoshimura sound that many riders love.
If you want to fine-tune the volume, the RS-5's removable insert gives you that flexibility. If you prefer a straightforward, proven sound without extra adjustments, the AT2 delivers that out of the box.
Weight and Materials
The RS-5 uses a carbon fiber cone-endcap and trapezoid-shaped sleeve, which can reduce weight compared to all-stainless designs. The AT2 is all stainless steel, making it heavier but more durable and resistant to corrosion.
For riders who prioritize weight savings, the RS-5 is the better choice. If you ride in harsh conditions or want a low-maintenance option, the AT2's stainless build is more practical.
Trade-Offs at a Glance
- Sound Adjustability: RS-5: removable low-volume insert for easy volume changes. AT2: fixed sound unless you buy an aftermarket insert (not included). If you plan to switch between street and track, RS-5 is more convenient.
- Weight: RS-5: carbon fiber endcap reduces weight. AT2: all stainless steel is heavier but more robust. Weight-conscious riders should lean toward RS-5.
- Price: AT2 is significantly cheaper (MSRP $279.99 vs $461.61) while still delivering Yoshimura quality. Budget-minded riders get great performance with AT2.
Product Facts
- CBR600RR 07-08 RS-5 Stainless Slip-On Exhaust, w/ Carbon Fiber Muffler: The RS-5 features a straight baffle with a removable low-volume insert and a carbon fiber cone-endcap. You can adjust the exhaust volume for different riding environments, and the carbon fiber endcap reduces weight.
CBR600RR 07-08 RS-5 Stainless Slip-On Exhaust, w/ Carbon Fiber Muffler - GSX-R1000 01-04 750/600 01-03 TRS Stainless Bolt-On Exhaust: The TRS (AT2) features a straight baffle leading to a single polished stainless steel turn-down tip, compatible with a low-volume insert. It offers a classic Yoshimura sound with a durable stainless steel construction, and you can still add an insert if you want to tone it down.
GSX-R1000 01-04 750/600 01-03 TRS Stainless Bolt-On Exhaust
Which One Fits You?
Best For
- Riders who want a race-inspired look with carbon fiber details and adjustable sound
- Track-day enthusiasts who value weight savings and the ability to tune volume
Not For
- Budget-conscious riders who prefer a lower upfront cost—consider the AT2
- Riders who want a fully stainless steel exhaust for maximum durability—AT2 is more suitable
