exhaust flex header is brocken...

[foler]

http://img248.imageshack.us/img248/9163/nzyzx3apm7...
http://img128.imageshack.us/img128/9189/111oq3.jpg

On both pictures red arrow point to shock absorber (flex pipe) on header and here is small crack in. Crack is before lambda sondas and maybe exhaust sack air from outside and lambda think that in gases have to much air. That can be problem.

How I can fix this? Do I need this absorber? No one aftermarket headers have this.

thanks

[foler]

engine is s50b30 in m3 e36.