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Muffler Insert, B&B Off Road Engineering

DRZ400S '00 - '25 DRZ400E '00 - '03
Made in Australia WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

Their baffle was designed to replace the stock insert. The baffle produces a nice note compared to the de-restricted stock version and dyno test results showed an increase on 2 hp up top.

A noise test on the insert was conducted at the EPA Victoria Vehicle Test Station at Macleod under controlled conditions with Class 1 meters.

Tested BikeADR Signature dB(A) & test RPMADR tess with B&B Tip
Suzuki DRZ 40093 dB(A) @ 3375 RPM97 dB(A) @ 3375 RPM

Some extra details:

  1. The ADR test is conducted at an engine speed which is 50% of the engine rpm at which the engine develops maximum power. However, this engine speed is determined when the bike is in restricted form, with a throttle restrictor that stops the throttle being fully opened. This is why the ADR engine test speeds are so low. However, they are the engine speeds used to determine compliance.
  2. On the ADR test, the B&B tip was over the signature noise emission, but a tolerance of 5 dB(A) is allowed before prosecution would be initiated. With this tolerance, the insert would not be prosecuted as it is just 4 dB(A) over the signature.
  3. When tested with the standard OEM tips (as fitted when delivered from Suzuki Australia), the Suzuki came in at 95 dB(A) for the ADR test

Does not contain a spark arrestor. Check local laws on spark arrestors before purchase.

EPA race use only
Please allow 2-3 weeks for delivery
$173.95