For M/T slicks... M9 or L8...? Will I feel a difference?

http://www.mickeythompsontires.com/tech_compound.html

 

What size, and on what car/weight/engine/HP? The M9 is only available in their 33" ET Drags..... is that the kind of tire you're looking at? Most of the sizes you would run on a 4th Gen (for example) would be 26-28" diameter, made mostly in M5 or L8. All the ET Streets are M5. So there's a lot of people using the M5 compound on 3,000-3,800# cars with 300-1,000HP with good results. But without knowing your application, its hard to respond.

 

Sorry, I meant M5...

It's a 400rwhp pontiac 400ci 79 Firebird... 3400lbs