The BEST baffle on the planet just got better!

If a baffle and a diffuser got together well, the rest is history.

The worlds first Diffuser-Baffle.

Titanium removable Diffuser-Baffle for all Racefit Growlers & Legend exhausts designed to suppress noise.

Please note this baffle will NOT fit the Black Edition or Growler-X and is for occasional use.
Once installed the baffle should be checked regularly.

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Regarding race bikes: for superbikes 750 and over – ACU/FIM rules are 105 +/- 2db at 5,500rpm. Regarding track days: most tracks seem to adopt the same 105db limit, but they seem to take the rules literally.

Measurements are usually taken in pit lane with other noise, and it's not particularly scientific, accurate, fair. Still, in the main, we don't have problems with our exhausts on loud track days, and if we do, a baffle should knock a few dB off and solve the problem. Obviously, don't try using any aftermarket exhaust on a quiet track day!

Please note: this Diffuser-Baffle will NOT fit the Black Edition or Growler-X.

NB Official "ride by" noise tests on new bikes are carried out on certified Tarmac under stringent conditions

Warning: Other "exhaust manufacturers" will try and replicate this product. Badly! As usual, you saw it here first.

Office closed 10th-22nd September 2026

NRI/Baffles

Diffuser-Baffle

£73.33

NRI/Baffle

£41.67