Power Difference Between Decat And Sports Cat?

[zebidi]

the decat does make a difference in my opinion, my blitz sounded 100 times better without the blasted thing.

you should hear it with no backbox (got vids)

it makes a difference the higher up the revs you go cos the pipes arent bunged up waiting to be filtered, 4th and 5th gears pull better too.

but a decat wont benefit that much in an NA car unless you are running serious power, turbo cars benefit from decat pipes very well though. VERY WELL.

the decat pipe in the yaris will benefit it that its running smoother and gases flow through the system much quicker than with a stupid cat.