What's the difference between both cars in terms of spec? Cause
both are running on a 2.0L engine right?
Yes, but very big diff.
Civic 2.0 K20Z, 155bhp. CTR
K20A, 245bhp. The CTR's K20 has higher compression
and a higher redline than the Civic 2.0's.
If I'm not wrong, the CTR's compression is something like 11+,
compared to the 2.0's 9+ (most cars usually run about 8~10), and
the CTR has a redline of 8k+++ compared to the 2.0's 6k+++.