mattharper

my old muffler had a major(2") hole in it so i replaced it today.

the old cat back was 2.25" piping, high flow cat, fireball style exhaust, the new setup is 2.25"/2"axle back, random 2.5 inlet muffler w/silencer, OEM cat(kms unknown).

after swaping these out it feels like i lost a good amount of power throughout the powerband.

the car is muuuuch more 'low-key'
is it really slower or am i a ricer @heart and just like the loud noises?

my only though is that the cat on this new setup has high kms and might be a tad clogged.

imported_Cablerat

It's probably all in your head.

Loud noises make cars seem faster..

Stock motor?

Only thing I would say is you should probably be consistent on the piping throughout.

mattharper

ya,i didnt think it'd make a diff. i guess my ***-dyno needs a calibration.

RDub99

iTrader: (1)

could be the cat.. when they go bad you get no power but you'll really notice it..

chris_si98

well you got 2 1/4 going to 2" then to 2.5".. it's not going to flow as well as your 2 1/4" setup

bbarbulo

iTrader: (2)

noticable power loss could indicate a clogged cat.