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The J's Racing Inner Silencer is the perfect solution to control the volume of your exhaust on the street and then run full speed on the track.
Not compatible for previous generation J's Racing C304 exhausts and Titanium exhausts.
Cannot be used for 70RR for DC5 / EP3.
Not usable on the following mufflers:
Note: it might cause damage to the exhaust with the back pressure (exhaust pressure) kept over a certain level. Please remove it at the race track or on the street when driving with a high rev range.