Quiet Core Insert (NS-4 SYSTEMS)




The quiet core insert can be used with NS-4 style DR.D exhausts. The insert can be installed and removed very quickly. And as the name suggests it helps to reduce the sound level. Although you will experience a mellowing of the power by installing the insert there is not a significant power loss.

* This product works with the NS-4 systems ONLY.
** Images are for reference only, they are not model specific. Actual quiet core insert  vary slightly from image provided depending on model.

Additional information

Shipping Weight 2 lbs
Dimensions 8 × 6 × 6 in

Honda, Kawasaki, KTM, Suzuki, Yamaha


1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019


CRF100, CRF150, CRF230F, CRF250X, CRF450X, CRF50, CRF70, CRF80, DRZ110, KLX110, Metro, RMX450, Ruckus, TTR110, TTR125, TTR230, TTR50, TTR90, WR250X, WR426F, YFZ450, YFZ450R, YFZ450X, YZ250FX, YZ250X, YZ426F, TRX250, TRX400, TRX450, LT-Z400, LT-R450, YZF450, YZF450X, YZF450R, Raptor 125, Raptor 250, Raptor 350, Raptor 660, Raptor 700, KFX400, KXF450, CRF150R, CRF250R, CRF450R, KTM250, KTM350, KTM450, KTM525, KLX250F, KX250F, KLX450F, KX450F, RMZ250, RMZ450, YZ125, YZ250, WR250F, YZ250F, WR400F, YZ400F, YZ450F, WR450F