I've been looking for a splitter for my Seibon carbon hood with the tall scoop for awhile. I have a 03 WRX with a jdm STi swap. Seibon doesn't offer a splitter. My WRX splitter was way too small. The 04-05 Grimmspeed STi splitter worked perfect. Not to mention it looks amazing. my engine bay was so hard to keep clean because of all the air going everywhere but into the intercooler. I'm very pleased with the craftsmanship. Highly recommend.