Quote:
Originally Posted by Burt Reynolds
Thanks. ESS did the DME fix so no O2 sensor lights. Also, my mileage with all my mods (RPI scoop, BMC Filter, exhaust, tune) and 4.10 gears is exactly the same as it was stock with the same average speed. The short period of time I drove my headers without a tune for the 02 sensor, my mileage plummeted nearly 5mpg. If you get headers, you have to get a tune...no question about it.
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What tune did you get for the headers afterwards? Did you send youe DME back again after the header install, loosing 5mpg seems like alot for just adding headers or was it really running rich.