Well sun is here finally a few months late
Even though I did not finish everything, I dropped the car on the ground and took it on the road.
Muffler change is great so far. Really freed up a whole bunch more HP. The car was bordering on being scary at times before. Now that free HP has made it darn right scary.
Now traction is an issue. As my cheap sumitomo tires are almost at life's end, I have to get something sticker and streetable in the 315/35/17 size.
I have an option of Mickey Thompson, Nitto, and Goodyear. I have heard good things about the MT
Car sound;
https://youtu.be/scJlPRBTrDo
Next upgrade is R&P steering