I would weld it shut (with the housing OFF the turbo!).

The flapper on my GT28R and now my newly aquired GT3071R have the flappers welded shut. Keyser can attest that it didn't stop the both of us from getting ~300whp from the GT28R with that setup.

2000 SVT Turbo 295hp/269ftlb@12psi #1 for Bendix Brakes Kits! Knuckles rebuilt w/new bearings $55 AUSSIE ENDLINKS $70 Gutted pre-cats $80/set A lack of planning on your part does not constitute an emergency on mine!