Not much of an upgrade i know, but considering the car came with a standard dump and only a cat back exhaust i felt it deserved it. Particularly if i up the boost a bit more and/or buy a new turbo down the track.
I have to say also its so refreshing to buy parts for a car that just bolt up, no cutting or welding to do lol.. Thanks Corolla
Here's an idea of the difference in size; the car pretty much isn't any louder but it actually feels alot smoother in the lower rev range.
This is probably the only turbo silvia in Australia that was still running standard exhaust between the turbo and Cat lol...