should i get a high flow cat?

[jonboy]

hi all i have a 2.5 inch mandrel bent exhaust on my ecotec, i dont have extractors. iv just had a flowmaster 2.5 to twin 2.5 inch muffler fitted with twin 3 inch tips fitted. its got a nice sound to it. will fitting a high flow cat affect the exhaust note? (deepen it up a bit more?) and give me more kw? or is it a wast of time? car has done 230 k and im guessing its original. any input much appritiated

[james90]

i have a 2.5 inch aluminised cat back exhaust with a high flow cat and pacemaker extractors and it has decent note and has gained performance

[Super_Low 91]

i have a 2.5 inch aluminised cat back exhaust with a high flow cat and pacemaker extractors and it has decent note and has gained performance

I wonder,, how can the car have a decent note when you havin even had a motor in your car long enough to be able to hear it

[james90]

the ####ing thing runs shane just gearbox is ####ed gets replaced on tuesday and yeah ask christina she could hear it from hers and told me to shut it up lol

[Not_An_Abba_Fan]

The stock cat flows fine. Don't change it unless it is stuffed.

[maldotcom2]

Yeah i got a high flow cat put in and it deepened the note. Just depends whether you want to pay for it.