What's the scoop? Are these any good? I was thinking of buying a cat-back system and possibly adding a header later.

So will I notice the difference in power (low end or top end?) and what does it sound like?

Thoughts, observations and comments welcome

 

Yeah u will notice a difference....and they do sound nice....if your laws allow take out cat and put RB presilencer in its place....

 

IT'S A GOOD EXHAUST SYSTEM AND ALSO LOOK
GOOD PLENTY OF POWER

 

A cat back isn't going to give you gobs of power. You'd be lucky to get more than 5 HP on a NA. Hate to be the pessimistic guy...

You'd notice a bigger difference, if you got rid of the cats.

 

my car was dirty but here...

They sound really good under 4k rpm but I have headers and the pre-silencer. after that it's really loud

 

ALL I'M SAYING ALONG WITH OTHER MODIFICATIONS
LIKE FOR EXAMPLE A BONEZ HIGH CAT AND DOWN
PIPE IGNITION SYSTEM INTAKE STREET PORTED
MOTOR AND SO ON AND SO ON