We recently installed Graves Motorsports new full titanium exhaust system on our Honda CRF450RL Supermoto. Here's what we think...
We had recently been running the Yoshimura RS-4 full exhaust system on our CRF450RL Supermoto Conversion, but wanted to change things up a little bit this summer, so we decided to try out Graves Motorsports new full titanium exhaust system. We've used Graves exhaust systems on a few other bikes, including our Yamaha XSR900 Project Bike, and have always been impressed with the fit, finish, performance, and sound of their exhaust systems. They make very high quality stuff.
Sound...
We're currently running the exhaust with the spark arrestor / dB reducer installed. The sound is really really good... has a similar note to the Yoshimura RS-4 we had on the bike previously, but it's just a little bit quieter. It's not as quiet as the FMF Q4 muffler though, so from a loudness standpoint, the Graves (with insert installed) seems to fit right in between the FMF Q4 and the Yoshimura. If you want it a little louder, you can remove the insert. Overall. you will not be disappointed in the sound of your bike after installing this pipe!
Weight...
Since the Graves system is made completely of titanium, with a carbon endcap on the muffler, it's VERY lightweight. The muffler itself weighs 4.8 lbs, compared to the stocker at 13 lbs, so that saves 8.2 lbs. The Graves header pipe is 1 lb, compared to the stock header at 1.8 lbs, so a savings of nearly a pound. Overall weight savings after installing the Graves full titanium exhaust is about 9 lbs compared to stock!
Performance...
We don't have any dyno results to show you, but the bike feels very similar to how it felt with the Yoshimura RS-4 installed and we certainly can't complain about that. Our bike has a Vortex ECU installed, and we're running the same Yoshimura maps that we've been using. The bike just rips with these mods, no questions asked. It totally transforms the bike compared to what it ran (and sounded) like in stock form!
Fitment...
Honda CRF450RL 2021+
Honda CRF450L 2019-2020
Honda CRF450X 2019+
WHERE TO BUY:
• CRF450RL Graves Titanium Full Exhaust System from Revzilla
• CRF450RL Graves Titanium Slip-On Muffler from Revzilla
• CRF450RL Graves Titanium Header from Revzilla
• CRF450RL Graves Smog Block Off Plate Kit from Revzilla
