Installed on my 2009 Civic LX. Inserted without cutting the plastic case. But it only touches the base when reversing. Otherwise, it offered no improvement over the stock. Shifts still feel the same in all gears except 4th gear, the only gear where it's a bit shorter. Instead, you should have saved money for a complete switch assembly. But mainly I bought it because I didn't like the feel of the stock shifter (long shifts).