Want to know your thoughts on race cut outs. Worth while or waste of time and money. I saw a 99 Mustang's trap speed was a bit faster than without them open. And sounded bad a$$.

 

Cuts outs only hurt 2v's...I know i had some. When i opened up my cut-outs i could not do a burnout unless i sprayed water on the tires...the car would just bog and die.....Cut outs do wonders for ls1's though since they have a y set up...

 

I have them on mine...AFTER THE STOCK CATS....but before the mufflers.they sound amazing, but I still get enought back pressure due to the restrictive cats...