For those of you looking to upgrade the uppipe in your WRX/STI among other models, Invidia has provided us with their 304 stainless steel uppipe. These uppipes with feature a provision for your factory EGT sensor, so no CEL fix is required.
This uppipe will work with any turbo that can mount to the stock uppipe location. Expect better exhaust flow and faster spool up times. New replacement studs will be included.