I just installed an injen intake and a greddy cat back system onto my 02 Max SE. It sounds great however i feel as if i lost some torque. Is it all in my head or is that the norm? Oh and can't realy feel the diffence. Is there only a ddifference on the high rpms?

 

ur car should be more responsive, and the rpms should climb a little quicker.

 

with a cai you should gain low end torque while losing high end torque.

but with the greddy catback, you gain high end torque while losing
low end torque.



go get it dynoe'd.

 

Yeah that seems about right. Thanks for the info

 

Did you have to do any welding to install the O2 sensor?

Just wondering cuz I am thinking of getting rid of my HKS in favor of Greddy

 

I'd be interested in the gains in HP and/or Torque with this set up. Also, how much was the Exhaust? I'd hate to pay for an exhaust upgrade like that didn't do anything for the performance. Although I have to say, I love the way it looks. Any ideas if it will fit on the I35... I would imagine it would.

 

No i didn't do any welding. Bolted right on.