Hell YES! So is a roll bar and not just b/c it's mandatory. A 12 second car gets twisted like a pretzel and after a long summer the doors may not close correctly or rattle, etc... Install them and be joyous about it
yes everyone is right..................i have seen 12.90 cars twist so bad that you can see a ripple in the top above the 1/4 window...........................but you could of save some cash and made your own .....but that does take some skill
I know they used to have install pitcures of the in the floor subframe connectors on the wolf racing.com web site, check it out see if there still showing them, that way you can get a idea of how it's done and what it looks like.
I use Grigg's in-floor subframes in my 'vert and after MANY (200+) launches on slick (1.57-1.66 60ft times) my doors still work like the day I got the car. Without the subframes, I am sure the car would be twisted so bad, it would be undriveable
Subframe connectors are manditory in my book and the in-floor type are just that much better
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