[Official] "Do I need a tune with bolt-ons?" thread

[ntn007us]

Is the stock ECU smart enough to recalibrate and optimize the car's performance when you have upgraded with certain mods....within reason of course?

I've read here some people have hit the "reset" button on the ECU by temporarily disconnecting the battery. Others have said the ECU will "learn" the new mods after a few hard pulls. Finally, others have went with an e-tune or dyno-tune.

I plan to put some drop-in K&N filters and just a new mid-pipe/muffler combo (with stock y-pipe). Will my ECU "learn" and optimize itself decently enough ????

Thanks,

[seymore4]

If you've got the $$ tune it. It will run better guaranteed, you'll have better throttle response, more power, more efficiently running engine, and it will pull a lot smoother and harder.

[Jordo!]

Originally Posted by seymore4

If you've got the $$ tune it. It will run better guaranteed, you'll have better throttle response, more power, more efficiently running engine, and it will pull a lot smoother and harder.

The difference in how the car performs will be like day and night with a good tune, even if peak gains are minimal -- a lot of extra power can be picked up throughout the rev range, with better responsiveness.