secondary cats
#1
Member
Thread Starter
secondary cats
I am finally getting my X pipe put in tomorrow along with resonator delete.
Are the cats worth anything or are they worthless ceramics?
Also, from what I have read, this modification is worth about 10-15hp, much better sound, and if your nice to it, a couple mpg better fuel mileage?
Are the cats worth anything or are they worthless ceramics?
Also, from what I have read, this modification is worth about 10-15hp, much better sound, and if your nice to it, a couple mpg better fuel mileage?
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#8
Member
Thread Starter
I installed a stainless X pipe in place of the secondary cats and two stainless 45 degree elbows in place of the big resonator towards the rear of the car.
It is quiet at idle, quiet just cruising around, but when you get on it a bit she is fairly loud, no rappy sounds or buzziness, just a nice deep v8 growl.
It is quiet at idle, quiet just cruising around, but when you get on it a bit she is fairly loud, no rappy sounds or buzziness, just a nice deep v8 growl.
#9
Super Member
Cool. I did the same thing but my X is where the resonator was and the cats are gone. There is a nice rasp at full throttle you just can't hear it well in the car.