Riviera Airbag Size

What Diameter Airbag is everyone using on the front and rear of the first gen Riviera's.

 

a few of the guys I know are running 2500's the size on them is..

<table class="data"><tbody><tr><td>Free Standing Height</td><td>8.25 in (209.6 mm)</td></tr> <tr><td>Max. Extended Height</td><td>10.5 in (266.7 mm)</td></tr> <tr><td>Max. Compressed Height</td><td>2.8 in (71.1 mm)</td></tr> <tr><td>Max. Diameter</td><td>7.0 in (177.8 mm)</td></tr></tbody></table>