Any good or bad reviews from them?
Would be putting them in a built motor, turbo, shooting for 450-500 hp.
Thanks for any input.

 

The price is nice. The only downside would be they use the wound coil at the bottom when everyone else (including OEM) uses a shim. There is an alternative with shims for about $16 more though...

http://www.scienceofspeed.com/produc...VTEC_B-Series/

People have had good things to say about SOS. I have personally used S2 and OEM and they both have done well at quieting down the valvetrain - but can't speak for their longevity either. I would assume OEM will prevail in that department. Cheapest to Most Expensive (brands that I am aware of anyways) are:

Skunk2
Science of Speed
OEM
Inline Four

 

Thanks man appreciate it, like the idea of the shim on theSOS pieces.