im looking into buying a sti intercooler to upgrade the stock unit that i have. ive got a 05 wrx just so there is no confusion. just curious what the gains would be such as less lag on the turbo and cooler intake temps. is it worth buying . i also have a spt intake and cat-back. tell me if this going to do anything.
Gains from the stock to STi intercooler are minimal. Unless you're getting the thing for free or really cheap, it's not worth it. Save up and get a real TMIC upgrade if that's the path you're looking at.
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