RS_Matt

Just bought an 03 WRX a month ago and have finally got around to checking what bits are modified or not before I go for a possible remap. The panel filter in the airbox looks like a K&N in design but is blue.

Anybody know what make the filter could be? Also how do you tell if the turbo is standard as there are no serial numbers etc on it or anything, just a tiny 'TP' on a small raised circle.

T1000

the air filter might be a TSL 'Green' panel filter. These are actually dark blue although called Green

RS_Matt

lol cheers, it's quite a lightish blue, similar to the Prodrive turbo hose.. Prodrive don't do a panel filter do they?

Ozzy_555

Could be a simota racing panel filter?

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RS_Matt

Just been on ebay and typed in Subaru panel filter and there are 4 different makes all the same colour!

Blitz, Greddy, Simota and JR!!!!