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i have a d15z1 with a blown tranny i would really like to swap to a d16y8 or d16z6....dont tell me i should be greatful that my car gets 50 mpg because wit the p.o.s. o2 sensor i have which is like 300 to replace i dont even get 30 mpg.....all im asking is is itworth it to get the 1.6 vtec and swapit quick or to just get a new tranny and o2 sensor for my motor?