Can i use a turbo with a OEM cat


#1

has n1 exhaust and t3 turbo on a 93 prelude. just ordered a oem cat to pass smogg but wondering if it will melt it or anything?


#2

After you pass smog, remove the cat until your next test…Since force-fed engines have more exhaust volume, for continuous service a larger cat might be needed. But remember, the only time there is increased exhaust flow is during WOT operation…For normal driving, the stock cat will be fine.


#3

Just leave it on. The turbo will ruin the engine faster than the cat will wear out on a Frankenstein engine.


#4

No, the cat won’t melt. The pistons might, but the cat won’t.