July 20, 201312 yr Subaru factory airbox. You have noting to gain from a 'cold air' intake but maf issues. The factory airbox draws air from outside the engine will unside the fender. Slop on some junk with a cone filter and get all that 'hot' engine cabin air and an oily MAF. Sorry to sound cride, but a 90's subaru isn't exactly a tuner car. Stick with what is proven to work, and stay away from what is proven to fail. You will gain more by changing the muffler and advancing the timing a little bit.
July 20, 201312 yr You can de-snorkus the factory cold air intake by taking off the muffler box inside the fender. You need to pull the wheel well liner to get at it. That will make the intake louder like an aftermarket CAI but it won't improve power any. Make sure to put the wheel liner back in or you will suck a lot of dirt into the filter. The air filter is the same size that subaru used on 300hp engines, so it's not exactly restricting a 90hp one.
Please sign in to comment
You will be able to leave a comment after signing in
Sign In Now