I am selling a used Apexi super ground kit. It worked great on my 02 Celica GTS. I did feel a difference in power also. TPRMAG did a dyno of it and made 9whp on a del sol. It also made 8.5whp on a WRX. They sell for 180.00 new. I will let it go for 120.00 + shipping. Pm if you want it. I do take paypal and it is ready to be shipped out asap. I fyou want pics, just let me know and I will try to e-mail them to you.