>>3672210Honestly anon, don't bother pushing. Odds are the lab either:
A. doesn't push C41
B. will charge you extra to push it
If you want a shitty look, just underexpose the film. Shoot it at 800 or even 1600 and have it developed normally. Another option is to just buy some shitty expired film off eBay. Don't pay a premium or anything...wait for an auction that winds up being ~$1/roll or less.
Here's some expired as fuck Fuji Pro 400 from the early 2000s.