Forester performance

I was talking to my boyfriend about this, who is a die hard Impreza fan. He said, first it depends on what your model is, turbo or na. Turbo has more options, for example cobb access port, this will reflash your cars ECU. If your are na your choices are limited to piggy back computers, for example, the Greddy E-manage Ultimate, PP6 (Perfect Power

6), or the Unichip (old and limited in what it can do but still ok).

If you want to chat with people who done this go to

These are Impreza sites, but since all Subarus have the same engines no matter the model, this should help.

Kim

Hi Kim, I am wondering if he has any opinion about this one; -

H.

8d&f=72

I went to that site you listed. I'm not entirely sure what this thing does. It looks like it hooks up to the intake air temperature sensor (IAT)and tricks the ECU into thinking its getting a lower air temperature reading. It could work, but I'm afraid it might do more harm than good. If you're looking to add some power to your forester theres 3 rules to follow

1. Cheap + Fast = Unreliable
2. Reliable + Cheap = Not Fast
3. Fast + Reliable = Not Cheap

Now there are some things that you can get that are REASONABLY priced and get you some power. I'm not sure what your goals are, but if all you want is a small bump in power, start with your exhaust to let your car breath a bit better. I'll give you some examples:

Headers: Borla headers Unequal length Tech-works equal length headers Ebay Borla Knock-off headers unequal length Ebay OBX Knock-off equal length headers

Now equal length headers will give you more Hp than the unequal length headers, but some will go for the unequal length ones just becuase it gives that Boxer rumble.

Hi-Flow Catalytic converter: Random Technology dual Hi-flow cats Stromung Hi-flow cat Stromung track pipe (no cats)

Now there is a possability if you are going to replace the cats you might get a check engine light, and if you have to get your car inspected by a state (like California) thats picky you won't pass inspection with a check engine light.

Cat-Back exhaust (Mid-pipe & Muffler): Too many to list !!! but I'll give you a few Borla Greddy EVO 2 Stromung

This part works well with other exhaust modifications. By itself a cat-back exhaust gives very little Hp, but combined with headers or headers and hi flow cats the performance is better.

Last but not least Lightweight Crank Pulley: Perrin Cobb Rallitek

Now this won't add any Hp but will help a little bit in the acceleration department.

Also if you have a 5 speed you might want to check into a light weight flywheel. Again check out those sites that I gave you and research, research, research everthing you can and ask if you don't know. There are plenty of others on those forums that know a lot more than I do. I hope this helps

Eric & kim