Quote:
Originally Posted by luigi90210
first off, never use a rattle gun to remove O2 sensors, just use a wrench or a slotted socket(these are made for removing O2 sensors)
second, put cats back on and your rasp will go away, but you will lose power, another alternative is to weld in resonators to help with rasp
heck i have a stock nismo exhaust with test pipes and its raspy as hell(granted i like the sound) from 2k-3k
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noone used a gun on the actual sensors , they Used very strong SNAP-ON impact gun taking stock Y pipe and test pipes off thats all .
Raspy noise is fixed ! Used stock Y pipe with obx test pipes and topspeed Pro1 exhaust , now car has ) rasp and all the exhaust noise comes from back of the car instead of under the car from 2.5" Y pipe