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Originally Posted by aklim
Had Speedtuning USA reflash my ECM and the wife could feel the difference in the performance. In the last couple of weeks, it seems like we picked up 1 mpg. The only drawback, if you can call it that is that it behaves like a semi when you hit the pedal in that it will smoke. I talked to Oliver at Speedtuning USA and he said that is OK. In fact, he said if I wanted to, I could put a K&N filter which might help it in the smoking and increase the boost by 5 psi. Hmmmm.
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Hi aklim,
Doesn't smoke mean unburned fuel?
Also, is Oliver suggesting a K&N will increase the boost or that he'd increase the boost in ADDITION to adding a K&N?
Seems that iff you did somehow manage to increase the boost, you might get rid of the smoking and increase your power. I'm pretty sure though that higher boost equals higher fuel consumption if you're going for more power...
Are you SURE you're getting 1 mpg better?