I have tried The Outlaw and NOS octane boosters while running 93 octane in my TL with good results so I thought I'de try this product.

Product description:
X-1R NX Nitrous Express Power Booster contains MMT (a true octane boost), Nitromethane and POWR-XTM to eliminate knocking, increase performance and restore lost horsepower. It's a Racing Formula Benefits: •Contains MMT, Nitromethane and POWR-XTM •Eliminates Knocking and Pinging •Increases Performance •Restores lost horsepower •Contain Synthetic Detergency •Excellent Lead Substitute

I filled up when my gas light came on and poured this stuff in first and filled up with 93 at Mobil. I am 220 miles into the tank right now and man there is a noticeable difference in response and overall acceleration especially down low. I am very pleased with this product and would like to keep using it from time to time, but my only question is will repeated use do any damage to my car? I doubt do, but wanted to gather some opinions and share my experience.

 

I used Champion octane booster with MMT for $2.50 a bottle. I was just curious to see if it really worked and yea you can feel a difference. I'll give NX a try.

 

Most boosters are safe to use with the cat convertor so add away!
Does it say what the actual octane increase is?
I spoke with Lucas tech support and their regular fuel cleaner is
3 octane point increase at 1 and 3/4 oz product per gallon of fuel

 

Anyone done with and without dyno runs with any of these?
...I'm a bit skeptical, under the assumption that if the engine wasn't pinging before, more octane shouldn't help.