i have a 93 honda civic 4dr eg d15b7 i put the z6 head aftermarket intake,cam gear,port and polished head with 3 angle valve job,z6 tranny. i have a couple of issues. first i need a p28 ecu then i need some one that can put it in and wire the vtec and tune it. second i'm running a aftermarket delso header and i have cracked it had it rewelded then crack it again thers no pipe on it so i can't figure out why it's cracking? only thing i could think of is that it's cheap so would like to get a better one. and last but not least my car acts like it has a bad iac however i canged it and it didn't make a diffrence my car lobes for 500rpm to about 1500 rpm by itself whats so funny about it is that if i push the car hard it goes away but then i might come back but only for a couple times? i open for trying anything that might help so please help me!!!!!!!!!!!!!!!!!!!!!!!!!!