okay just my luck i was going to go pick up the team magic today since the mugen was sold and agen im in a hole since he also sold the team magic so im planing on geting a hpi rs4 roller no engine for a good price iv read thaty you can fit a o.s 18tz in it but i was wondering if i would have to change anything to make it fit or is it a straight bolt up can any one help me out thanks