Eldestt

Hey all, have a new to me 04 s2000 and noticed a hissing coming from my brake booster. Was wondering if this was something that could be fixed or if the whole thing should be replaced. If replaced, would love recommendations on finding an oem replacement, thanks! Attached a video as well so you can see what it is I’m talking about.

Eldestt

realized I can't attach the video format, basically when the brake pedal is near fully depressed I get a hissing noise like a vacuum leak, not effecting braking performance, just something I figure needs to be addressed.

Chuck S

Assuming you need the big booster the part number for 2004 and 2005 is 01469-S2A-E01. And is, of course, discontinued.

But like many parts is often available on Ebay.

-- Chuck