ECU tune, 1999 Volvo C70 HPT Automatic

[C70coupevolvop80]

Hey I have a 1999 Volvo C70 HPT & have a lot of modifications, I’m just not sure how to go about an ECU tune if I should go to a dyno shop or ship out my ecu not really sure how this works if someone could help me out trying to push 285-300hp, I’ve been adding parts since I was 16 and I’m trying to get it back on the road, recommendations on what else I should do too
*List of some modifications*
IPD Lower Sway Bars
BC Racing Coilcovers
Aluminum do88 Intercooler
Do88 Silicone Turbo Intake
Do88 silicone Tubes for all vacuum lines & pipes
Vast tuning Oil Catch can
Ipd cone air filter
Air/fuel Ratio gauge
Boost Gauge
AEM V3 Water Methanol Injection Kit
Reverse Intercooler Piping Kit
Porsche turbo control valve
Stage 0
DW200 Fuel Pump
New coolant reservoir
Vast tuning Aluminum MAF housing
IPD Turboback Exhaust
All bushings & motor mounts replaced into Polyurethane
Stainless Steel braided brake lines
IPD End Links
IPD PCV system

[Sveedy]

Hilton Tuning is the only one I know of that tunes '99+ model years. You might get some other leads over on Swedespeed.