Hey guys, I am installing my cat back but having trouble getting the studs at the cat out. I was grinding them off and drilling them out but they must be made of some tough stuff and keep dulling drill bits.

I believe the rear O2 sensor is just to determine if the cat is working correct? I just wonder if it is ok to drive the car with no cat back and no rear 02 sensor. Thanks guys.

Edit: I was able to find something via google and I am pretty sure this is correct. My neighbors aren't going to like me very much as I have to drive the car with no cat back for a couple days until I can get some help from a friend with some better tools.

I must say, the car sounds amazing with no cat back. Loud but very nice.

you can drive w/out a downstream (rear) o2 sensor, but you'll have a check engine light. You might be dulling drill bits because you aren't drilling slow enough and/or lubricating at the same time w/ WD 40. w/out WD, you'll dull quick. learned that.

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http://www.2gnt.com/quote_db.php?id=278

Outside of Corona: "That sucks, peace out..." (jamie walks away)... "Sweeet, what we doin?" -Zac
Tim's garage (prior to motor install): "Im gonna smoke real quick, that way if you fuck up I am already nicotined up" -Tim

I had one hell of a time getting my cat off when I was replacing the downpipe and cat. My car is very loud with the exhaust I have (Greddy cat back) and I have headers so that makes it louder too. I used a dremel tool and cut the flange where the bolts go through. Took a while but it worked.

consider yourself a ricer until u get it fixed. lol jk

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http://www.2gnt.com/quote_db.php?id=278

Outside of Corona: "That sucks, peace out..." (jamie walks away)... "Sweeet, what we doin?" -Zac
Tim's garage (prior to motor install): "Im gonna smoke real quick, that way if you fuck up I am already nicotined up" -Tim

I just heated mine up with a torch and put vise-grips on the bolts and eventually I was able to turn them loose

Looking for some DSMers in the area, Bernville, PA !!



I KNOW I CAN MAKE THIS EVEN FASTER!!!
I DRIVE IT LIKE I OWN IT!

MSD Wires, MSD Coil, Cold Air Intake, 4-2-1 Racing Header, EGR Block Off, Drilled Front Rotors, Venom 400 PCM, F-RU-RL Strut Bars, HID's, Autometer A/F, Volt, Oil Temp and Oil Pressure Gauges, 17x7.5 ROH wheels with Nankang 215-40-17's... Not installed yet: 2" Lowering Springs, Manual Conversion w/ Short Shift Kit and Steel Bushings for Cables and Base, 2.4L Swap, "Worked" 2.0L Head, 57.5mm ATX TB from TB.com, 1/2 Rad Mod, Poly Motor Mounts, Turbo Setup.