By Jon D on Tuesday, March 27, 2001 - 01:43 pm: Edit

I was lubing my new(used) Disco I and noticed two mufflers underneath it. There are 2 Cats (one for each exhaust manifold), and 2 mufflers. What's going on?

By Clint on Tuesday, March 27, 2001 - 02:12 pm: Edit

Jon,
What you saw was 2 cats, a muffler and a resonator.
Its fun just to lay under the rover and marvel, isn't it?
Clint

By Jon D on Tuesday, March 27, 2001 - 02:21 pm: Edit

Can I remove one of these things so it has just a muffler like any other vehicle? Reduce backpressure and all? I figure with the cats and a muffler, it'll pass emissions....

By Clint on Tuesday, March 27, 2001 - 02:29 pm: Edit

The resonator makes it quiet on the highway. If you've ever ridden in most cars with "high performance" exhausts, you will notice a very loud resonance at 2500 rpm or so. Right at cruising speed. Often the noise will die off when you get above 80. I also don't know how much backpressure the resonator adds.

By Jeff Penrose on Tuesday, March 27, 2001 - 04:18 pm: Edit

I had a guy remove my resonator, it hung about 2 inches lower thaqn it should. I have 235/85/16s and i didn't notice any performance decrease after it was off. I will not be putting a new one on.

By Chris on Wednesday, March 28, 2001 - 03:12 am: Edit

I have also removed my resonator. Like Jeff, I am running 235/85/16's and have not noticed any lack of power (that was not already there from my tire choice). I also changed my muffler to a flowmaster and have found that the resonance is not bad at all. In fact, it makes the V8 sound quite nice.

Chris

By al hang on Wednesday, March 28, 2001 - 07:21 am: Edit

it's not really a resonator, if you look at it carefully you'll see it's a short muffler. it doesn't offer a straight thru design like most resonators do

By Jon D on Thursday, March 29, 2001 - 05:43 am: Edit

Which one is the resonator? Is it the one furthest back or the one that's "in the middle". Thanks

By Jim on Thursday, March 29, 2001 - 07:57 am: Edit

The one in the back is the resonator

By rick on Sunday, April 01, 2001 - 03:42 am: Edit

what year discos??
rick

By Jon D on Sunday, April 01, 2001 - 04:05 am: Edit

Just came upon around $500, so I'm going to slap on a Borla S/S system. Hope it works.......

By Jon W on Wednesday, April 04, 2001 - 08:57 am: Edit

Let me know how you like it. The exhaust has started to rot off my Disco and I'm planning to replace it with a Borla. Thanks!

By Ron on Wednesday, April 04, 2001 - 08:59 am: Edit

SUMMIT RACING has BORLA for like 375 delivered.

Ron

By Joshua Bova (Jbova) on Wednesday, April 04, 2001 - 09:06 am: Edit

I think Nathan Crabtree is selling Borla as well. He traditionally has the cheapest prices I have seen. Give him a shout.

[email protected]

-josh