Custom 1.75" catback exhaust - worth it??

[fuji]

I had a 2" custom exhaust installed not to long ago. I was hoping to see a bit more oomph in the mid to upper ranges but the results have been slightly diappointing. I definately noticed the lack of oomph in the lower end.

I know most people would install a 2" or 2.25" piped exhaust but is there a way to constuct a free-er flowing 1.75" that would restore the lower end oomph while giving some benefit up high as well?

Any difference in power when adding resonators and high flow catalytic converters? Just better not to run a resonator???:iono:

[gwasabi]

leave it at 2 and get corolla tb

Is it a CAt delete?

[gwasabi]

Also, if you have a pulley set, you might want to change back your CRANK PULLEY to OEM. I noticed that the torque kinda sucks on the lower end with it on

[fuji]

The cat is currently in place. Is there any advantage to having a hi flow cat installed???

[gwasabi]

Keep the cat if you want the backpressure.