HKS3306-RA074 120mm Inner Muffler Silencer

I bought the wrong size but I was able to modify it to fit perfectly. In my opinion the muffler is built very well and was actually difficult to cut through and drill through due to the gage and quality of the metal used. As for the noise suppression, I was actually impressed with the noise reduction and reduced it just enough where it still sounds good but does not wake up the neighbors in the morning. I would highly recommend this product for someone that wants a quick and easy fix, while getting quality as well. I recommend you measure the circumference of your muffler to make sure you are buying the correct size.

Perfect fit. Installed on a 3" turbo back exhaust, dropped exhaust noise by half I'd say. My car is very streetable now.

As described, decent price

Fits my HKS Hi-Power catback on my 03 wrx, cuts noise by about a quarter

Much better on the street now, easily a 7 decibel difference, its silent under 3k rpm.fits like a glove as expected. no rattle.