TiAL Sport External Wastegate Actuator Springs are perfect for tweaking the inside action of TiAL external wastegates.
TiAL have tailored their range of uprated springs specifically to each model of wastegate.
| WG38/40 Uprated Springs | Bar | PSI |
| Small Yellow | 0.25 | 3.62 |
| Small Red | 0.40 | 5.80 |
| Small Green | 0.50 | 7.25 |
| Small Blue | 0.60 | 8.70 |
| Large Yellow | 0.70 | 10.15 |
| Large Red | 0.80 | 11.60 |
| Large Green | 0.90 | 13.05 |
| Large Blue | 1.00 | 14.50 |
Sold individually.