Has anyone had success with altering the tuning of their XLR? I have read posts from several that have had tunes done after adding air intakes, exhaust etc. Was the tune beneficial? Did it result in more horsepower or did it just prevent the car from throwing codes?
Lastly, would you recommend your tuner and what did they charge?
Thanks
I'm a firm believer in having a tuner to get the most out of your mods. (Then again, my mods are extreme). Yes a knowledgeable tuner can eliminate codes being set, but can also modify the computer programming, fuel tables, AFR settings, etc. so your motor gets the full benefit from your mods.
Picking a tuner is a lot like picking a mechanic - your mileage may vary.

I researched all the available big HP Cadillac tuners within 400 miles. And must admit the one I chose is probably most knowledgeable, but also the busiest. Since what I wanted was small potatoes compared to much of what he normally does, I was overwhelmed at how quickly he tuned my V. He also recommended several additional mods for increased HP and safety as well as fabricated, installed and tested other enhancements.
Was it beneficial? My bolt-on mods yielded 430RWHP/479TQ at 4900RPM, but it was unsafe or should I say, dangerous. The motor was way too lean over 5000 RPM and the computer couldn't compensate. My tuner added bigger injectors and a bigger intercooler pump and tuned it to 501RWHP/486TQ with plenty of safety margin. That's 70RWHP (16%) more from having a good tuner and I know its safe to drive.
So far from here to Indy to Charleston, SC and back through the Tail of the Dragon to autocross in Indy and home - no problems, not even a hiccup. I never would have trusted these mods on that kind of a road trip without a tuner to let me know it was safe.
Would I recommend Jesse, hell yes! What did he charge? A lot less than I was willing to pay. But be prepared to wait... and wait... and...
No wonder his shop is called Wait4Me Tune. The wait was well worth it, though.