blown99civicsi-thanks for the info.I figured it would be fine but wanted to make sure cause 68mm is alot bigger then 58mm wich is the stock b16 size.quistrn-The new pro series manifold i think can take a 70mm.I know the hole is bigger then my tb is.I will have to mic it this afternoon..I have tried everything to get this one i have to not stick but it doesnt work.makes my car idle at like 15-1800.The 62mm does sound like it has much better throttle responce then the stock b16.I guess i will just get the skunk 68mm cause i have wanted one forever.i got a good deal on the bbk so i bought it anyways..well...thanks aot guys..