I have a 99 RS swapped with 02 USDM WRX engine. I recently noticed the brake booster vacuum hose used by the previous owner is a collapsed silicon aftermarket hose. Which is the correct OEM kit - the one for the 99 RS or 02 WRX?
The rs one and the 06 wrx from my doner car both fit. Idk if the 02 would be any different. If you still have the rs booster I would try the rs one first. Also make sure you have the valve in the hose with a silicone hose or you’ll blow the booster when you get into boost.