Only thing i think that would be a great upgrade for this car like i have on my s14 sr20det. It would be the DC power alternator they put out 180 amps. Great for all your accessories!
An S15 with only 92K KM (about 58K miles) with all these mods, this is a bargain at $38K (USD). This is a 1999 model so it's really close to legal importation into the US (25 year rule) so if you want an S15, this is a great option. Once these actually hit US shores in 2024, you're going to be spending $50-60K to get one.