I'm a newbie so forgive me for a stupid question: How do you get rid off/minimise turbo lag between gear changes? Do I need a closed loop dump value of something?? Do these invalidate my warranty?

 

Any mods to your car will invalidate your warranty. Assuming you have an impreza turbo you already have a closed loop dumper fitted as standard (recirculating). Are you sure you have turbo lag? You usually get lag when you fit an enormous blower when modding....may have another problem...just my thoughts!!

 

every turbo has lag. all you can do is minimise it. the only option is the PPP (Prodrive Performance Pack) if you want to keep your warranty. It doesn't remove lag, but raises boost to deliver more torque.

Keep the car above 3,000rpm when your driving it hard and you'll not get much lag

Stefan

 

A decent Decat will let the turbo spool up sooner and a bit quicker.

Or if it really bothers you that much go get a Motec ECU with Anti-Lag

 

Just removing the center cat will make a noiceable differance to lag.

Col