That’s a BIG part of the Cal Poly admissions algorithm.
CP has been competitive for some time. The average GPA of admitted students to the CENG in 2014, the year my son started was 4.04, using the UC/CSU capped and weighted GPA for 9-11.
It’s gotten more competitive with the 25th percentile being 4.13 last year.
It’s wildly variable though. Almost everyone gets into Industrial Technology and Packaging, arguably the most underrated major at the school. Industrial Engineering is also not very competitive. Pick CS, AE, ME, BME, etc. and it gets VERY competitive. Plus, they make it hard to change into a major the student might not have been accepted to initially.
They do this in a different way, by giving algorithm points to students from Hayden Partner School (assuming the MCA is largely unchanged).