We are now carrying Arias pistons for the Subaru WRX and STI. Arias piston is the leading manufacturer of forged pistons for the sport compact cars. This affordable pistons have proven itself on street and racing application. As we all know turbocharged cars need stronger engine components to withstand the added stress. Also would like to emphasize that the turbos available in the market right now are getting more efficient and bigger. To get all the benefits of that and to ensure a more reliable engine. This will help !!!
Available with different bores and compression. The off the shelf versions provide you with a wide variety of choices. Arias is the one that offers the highest compression for the ej20 which is about the stock of an Evo engine (8.7:1). We currently have this piston combined with the BC 272/272 and we are very happy with the result. Lets not forget the coating on the piston skirt. As we all know the stock pistons are coated so we have to have our aftermarket pistons coated also.
We also have this on custom spec. These are special orders if you are not satisfied with the OTS pistons this is for you. Two main things that they change with this is the compression and bore. If you want jdm v7 sti spec with high compression. That can be done. If you want the biggest bore that you can use. That is possible too. Talk to us if you are interested with this. Would like to mention here again about our engine building service - short or long block. Please don't follow the prices of the built engines that we have at Imanmotorsports. The website hasn't been updated yet. Those are not our engines.






We also carry BC and Eagle rods.