Evo pump is too much. It will be like On/Off like what you said. Tested one of the unit at the workshop. Not my taste.That's not normal. Wira brakes are generally pretty good in stock form.
- Service the brake servo and change the master pump and stick with ori. Upgrading to Evo pump is fine and all but you'll need to relearn how to brake as the pressure is significantly greater with the Evo one. Some people said it results in "on/off" brakes.
- Any Wira will be damn old so change all the brake lines to steel braided lines. Ori rubber lines will be so soft it expands very easily.
- Change to good brake pads. Avoid pads like metalking as they only bite after they warm up. Cold it's pretty useless.
- Consider upgrading to GSR calipers. The oil channels inside the GSR caliper isn't that much bigger than stock Wira so pedal feel doesn't change much. But the piston is much bigger so you get better bite.
- Upgrade the rears to discs from the Satria GTI or Putra. If you do this get both front and back if you haven't already bought the GSR front. GSR rears need some modification so avoid.
- Use DOT 4 or 5.1 oil.
- Flush your oil system and ensure there's no leak.
i'm planning to change to braided hose.
can recommend good brake pads? Use Trestor before. It has a lot of dust.