Gents,
Toyo and Nitto are two different animals. There are a lot of different models to compare and comparing one manufacturers M/T to anothers A/T is kind of unfair.
I have a lot of personal experience with Toyo tires, both M/T and A/T and a fair amount with the Nittos as well. I think the Nitto A/T (Terra Grappler) is far superior to their "Mud Grappler. " I know several guys who have used the Terra Grappler extensively in Baja with great success.
KORE is currently equipping dealer trucks at the showroom level - with our wheels, suspension and Toyo M/T tires. Toyos are selling so well they've been kind of hard to come by, so one of our Dodge dealers recently tried some Nitto M/T's on KORE wheels. They were so unimpressed they just ordered all of our remaining Toyos - just to keep on hand. The parts manager said, "Those Nittos look aggressive but they were noisy, rode harsh and were hard to balance. "
I don't want to start an argument. Not everyone may concur with these findings concerning the "Nitto Mud Grappler," but this is what the parts guy at the Dodge dealer told me - verbatim.
Basically the Toyo M/T is a "function" tire designed for hard use and the Nitto M/T is a "form" tire designed to appeal aesthetically to a certain genre of our culture. I mean, look at the Nitto Mud Grappler - it's got some funky reptile-looking skin on the side and some weird tread that looks like a dinosaur back or something...
The Toyo M/T tread is computer-designed purely for function - it grips so hard under acceleration that for the Parker 425 Steinberger had to shave them down for fear that his Trophy truck would lunch the transmission. In addition he ran 15 psi for the entire race! Unbelievable performance from an off-the-shelf tire - or any tire for that matter.
KORE sells the stuff that KORE has good experience with.
I think the Toyo M/T may be the finest multi-purpose tire ever built. I have literally entrusted my life to Toyo tires - while racing during the Baja 500 and 1000. The Class One race car in the link below does close to 140 mph - in the dirt. I have been in the cockpit of this vehicle, ten feet in the air - the GPS in front of me read 107 mph. Situations like this impose incredible stress on tires. If the tire says, "no mas," at the wrong moment, that could be the end of you. For serious racing, when everything is on the line, not just winning, but even personal safety - I wouldn't run any other tire than an E rated Toyo. Period. Think rubber like this will work OK for towing the family fifth wheel down the Grapevine?
http://koreperformance.com/tires.htm
The only thing I don't like about Toyo is that they're not made in the USA. However, Toyo is building a Stateside factory that will be operational next year - then that will no longer be a nagging thorn in my side.
Hope this sheds some light on the issue.
Best Regards,
Kent Kroeker
KORE