Worldoneperformance.com
 

When I had my Subie, this is were I would basically purchase everything other then from Subiedude. The customer service was terrific and they didn't mind answering all my questions before a purchase. Shipping is extremly fast and always well packaged.

I ordered my Eibach springs from them fast shipping and they were the cheapest at the time.

I ordered my Espiler catback from them, they had some sale and it was the best price I could find.
I just ordered a helix downpipe from them and got an email, but no shipping info for a few days. After 5 days I contacted them on AIM and he asked for a number to reach me. Garret(Owner) called me and was very very helpful. He said their new website wasn't sending out of stock emails to buyers and offered to send me an Invidia downpipe, which was in stock, for the same price. He then made sure that I knew the downpipe wouldn't fit my catback and it had been months since I ordered that. The downpipe phone call was on friday and my downpipe arrived today(Monday). World One gets a thumbs up from me.