Will removing one of the cats and removing another resonator box help improve flow let alone reduce some weight?

I dont care about noise tests or emissions problems cos New Zealand doesnt check for that stuff

Thanks

 

There is only one cat. you can purchase a test pipe to replace it (a straight pipe) which will save some weight and give you a small power gain.

 

don't forget the 02 sensor fix.

 

Yea before i upgraded my whole exhaust system, i just had a test pipe w/stock exhaust and i think that i gained more power from that than the exhaust system. Pretty good for $70!

Nate

 

how much louder is it with a test pipe on the stock exhaust system??

scott

 

just a little.

 

I agree. Just put an Invidia test pipe on my stock 02. Seems to have more throttle response with that cat out of there.

 

i was thinking of getting the invidia TP as well. does good from what i hear...what is this o2 fix ive heard about?

thanks

 

Honestly i had to really strain my ears to hear much discrenable difference. Especially down low you dont hear much. If anything id say its a little more raspy without the cat. not too noticable.

Nate

 

around 2500 to 3500 theres a slight raspy sound. then my intake and engine gets too loud and drones out the tp sound. sounds... the same? butt dyno? maybe smoother and a lil gain, if any in the midrange b4 6k and it smells =]