Go get them.... I have a NHB CTR and have put the front splitter on and it looks great. changes the look of the car from front on and mostly from the side. Havnt got pictures on here but if your on CTRO look at Japfest pictures and my car is on there. Cant help you with rear splitter though as planning on getting Mugen rear bumper so only got the front on at the mo.
But looks great mate... a must buy if you dont have one.