Excellent value for the money. I really can't see why you wouldn't spend the extra money to get the most from your upgrades. Stratified works with you to get what your after in a safe manner. I'm stoked on the results which netted a 18-20% increase in hp/tq that you can really feel.
If your going to add aftermarket parts, go with Stratified!
If your going to add aftermarket parts, go with Stratified!