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View Full Version : Rear Cat Removal



ajcook
05-02-2013, 07:35 PM
I'm going to D-I-Y delete my rear cats this summer. Being somewhat lazy, where can I get pipes with the correct length, offet, ID, OD to fit in place of the cats to make the job easier?

fastblackmerc
05-03-2013, 05:51 AM
I'm going to D-I-Y delete my rear cats this summer. Being somewhat lazy, where can I get pipes with the correct length, offet, ID, OD to fit in place of the cats to make the job easier?

Exhaust shops, eBay, FLAPS, Jegs, etc.......

It's just a straight length of pipe. All you need to know is the diameter and length.

Isethebye
10-25-2017, 04:58 PM
Looks like a slight offset overall.
You may wanna extend your piece to eliminate the flanges too.

a_d_a_m
10-28-2017, 04:42 PM
...holy necrothread

GoldPanther
10-28-2017, 06:22 PM
Lmao he is new

BAD MERC
10-29-2017, 08:55 AM
The trouble and effort to do this DIY will be offset by throwing $100 cash no receipt to a shop and turning your head for 30 minutes. Keep the cats in case you ever need to reinstall them.

Byrne_331
11-04-2017, 06:02 PM
I recently paid $50 for a shop to do it. They did a great job and I was in and out in 30-40 minutes.

Jtrip
11-05-2017, 06:57 AM
I recently paid $50 for a shop to do it. They did a great job and I was in and out in 30-40 minutes.

How's it sound?

badass mm
11-05-2017, 04:02 PM
I had mine done this summer at a exhaust shop for like 50 bucks then its done right SOUNDS GRRREEEAAAATTTTT !!!!!!!! PS with turbo mufflers :banana:

Byrne_331
11-08-2017, 03:31 PM
How's it sound?

Sounds great, it's almost perfect. Not too loud, just a nice tone to it. Great exhaust mod if you can get it done for around $50. When you get on it it's just a little more aggressive than stock. I drove it like that for about a month before I found some mufflers on ebay for cheap. VMS Racing is the brand. They were like $35 each shipped. They are basically a magnaflow copy. All stainless inside and out, very happy with the purchase. I recommend them to anyone that is not looking for a chambered muffler sound. It was only slightly louder than the stock muffler but will increase in sound a little over time because it's a straight through muffler with a packing material inside and the material kind of expands over time.

BAD MERC
11-08-2017, 05:34 PM
I have been on the fence about doing this on mine. I have Super 40's and delete tips. It idles with a barely audible low rumble and sounds like hell unleashed at moderate throttle.

gnxtc2
11-17-2017, 02:00 AM
What are you guys doing with the O2 sensors?

Billy T.
gnxtc2@aol.com

crownvic97
11-17-2017, 02:20 AM
Nothing, rear 02’s are in front of the rear cats.