Modifications we recommend starting with the most beneficial:
11th Gen Civic Si:
1. Ktuner with Phearable stage 1.5R Tune +64 HP +99 TQ
2. PRL Intercooler & Charge Piping +More Power Consistency In Hot Conditions
3. PRL Intake
4. PRL HV Downpipe
5. PRL HV Front Pipe
11th Gen Civic Non-Si:
1. Ktuner with Phearable.net Stage 1.5 Tune +60 HP +79 TQ
2. PRL Intercooler & Charge Piping +More Power Consistency In Hot Conditions
3. PRL Intake
4. PRL HV Downpipe
5. PRL HV Front Pipe