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J'S RACING Inner silencer for SUS exhaust

Designed for R304 SUS Exhaust series.

When attached to an exhaust tip, it reduces the exhaust noise by 3 to 5 db.

Safety precautions

※ Not compatible for the previous generation C304 exhausts and Titanium exhausts.

※ Cannot be used for 70RR for DC5 / EP3 and FN2 type R exhaust

Designed for

R304-**-**RR(Except for DC5 & EP3)

※ it might cause a damage to the exhaust with the back pressure (exhaust pressure) kept over a certain level.   Please remove it on a race track or on a street for a driving with a high rev range.

*Please check stock and ETA with us.