The HKS kit I have claims 255whp, but I also think that's with their header. The 14 is about 155whp if IIRC. I was told the stock header is fine and no engine check lights is good with me on my commuter.

Supercharge or not, need qualified assistance
 

A little update. Made custom exhaust with increased diameter pipe and custom tune. It added 25 whp.

https://uploads.tapatalk-cdn.com/202...99d4bc7314.jpg


https://uploads.tapatalk-cdn.com/202...c122cda82e.jpg

The dyno was about 12 years old and could do reliable reading on automatic transmission. But here are the graphs of before/after.

https://uploads.tapatalk-cdn.com/202...64e1650c68.jpg
https://uploads.tapatalk-cdn.com/202...c516ae3573.jpg

Torque dip is still there but a little straightened up with slightly increased torque.
Headers are srock, so is cat converter to make sure I’ll have no issues with emissions.

My tuner said that exhaust gave about +5 whp and tune +20 whp.

That's almost a 20% increase in power, congrats! Throw some tires on it and go for whirl.