The type Ris faster because it has a 1.8LITER engine versus your 1.6.It may not sound like much but it makes a lot of difference.They have 200hp,you only have maybe 160 wheel hp.You have the B16A2 engine while the integra type R has the B18C5. B is the engine series,very popular among swaps.18 is the displacement 1.8 C is the version,there was a B18A and B18B but those didnt have VTEC. 5 is simply the variant.The integra GSR has the B18C1 and the LS/GS integras had the B18A and B18B.The B20s have great torque its a 2.0 but if it is no built right it can blow up.For a person who is asking this question than a b20 is out of the question since if ure asking the question then you kno little about hondas.Get that B18C5 implant,since you love it so much.Id sell the Si and get a type R but if you really like the Si keep it,sell the B16A2 for 1,500 around and get a JDM B18C or a B18C5.The B18C is japanese and has no variant number.They are slighty better than our B18C5 but very alike.