TD04HL (T7) Extra Large Waste Gate Flap
For the majority of Saab’s on the road, maximize the stock turbo hot side is the perfect turbo upgrade.
The bare minimum porting includes,
Approximately 20% larger wastegate port
Additional custom porting to match your needs are no problem.
Waste Gates Explained
Ignition DVD (now Motive Video) provided the best explanation about waste gates that still holds up more than 15 years later.
CLICK HERE TO WATCH THIS VIDEO