Sub-Category
Model
Made In
Spark Arrestor
- Updated version with weldnut inside of insert makes installation/removal easier
- Replacement USFS Approved Spark Arrester for RS-4 Mufflers with "Turn-out" end-cap.
- Available as optional Spark Arrester on applications not originally equipped with a Spark Arrester
- Kit Includes:
- Spark Arrester Insert
- End-cap collar
- Set screw
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 Bike | ADR Signature dB(A) & test RPM | ADR tess with B&B Tip |
---|---|---|
Suzuki DRZ 400 | 93 dB(A) @ 3375 RPM | 97 dB(A) @ 3375 RPM |
Some extra details:
- 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.
- 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.
- 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.
This Quiet Insert comes stock in all new FMF Q4 mufflers. If you lost yours, this is the replacement you need.
It will fit Q4, Q4 Hex, Powercore and Powercore Hex mufflers.
It will reduce the sound rating of the Power Core models, from about 99db down to about 96db.
Please choose the correct Insert for your muffler. If you are unsure of the year that your muffler was manufactured you can easily identify visually which insert you will need.
Pre '21 | Installs using one small screw |
'21-Cur | Installs using a spiral retaining ring |