[tolemo]

I took a good quality 1.25" hole saw with an extension and punched out the plug in the rear of the mufflers. It gives a slightly more authoritative sound.

 

[chiefdano8]

Y a several people have done this

 

[gk1]

I did the same, and agree that it has a little more volume and a lot more tone. Well worth the $25 for a hole saw and extension plus a few minutes!

 

[rembrandt]

Keep going, you'll be glad that you did.

 

[gleve]

Keep going, you'll be glad that you did.

Wonder what that does to the fuel management. Too lean?

 

[Mark fowler]

I think I'll leave mine alone. I gotta be able to leave quietly when I'm camping on road trips. But I do think it sounds nice to have a LITTLE rumble.

 

[Sgt Mike]

Wonder what that does to the fuel management. Too lean?

I does nothing to the fuel management. I did mine about three months ago and the MPG has not changed at all. I hole sawed the cat conv, and both end plugs of the baffle.

 

[Mark fowler]

I does nothing to the fuel management. I did mine about three months ago and the MPG has not changed at all. I hole sawed the cat conv, and both end plugs of the baffle.

He means if the air to fuel ratio will be off.

 

[Sgt Mike]

He means if the air to fuel ratio will be off.

I know what he meant. Nothing has changed because I did not alter the air filter system.

 

[gleve]

Thats good to know. I take delivery of my new scout 60 this week and will consider doing after i put some miles on it.

 

[Mark fowler]

I know what he meant. Nothing has changed because I did not alter the air filter system.

It still will affect it. If it's enough to really matter is another story. If your exhaust doesn't affect afr, why must you jet for new exhaust.

 

[Boosterp]

I have the Stage 1 exhaust, the only cap seems to be around the cat, deep inside the muffler. I wonder what happens if I take out the baffle material?

 

[tolemo]

Wonder what that does to the fuel management. Too lean?

It stumbles a bit when you start it up the first time after the mod, then the computer quickly compensates and smooths things out.

 

[jtcohenour]

I have the Stage 1 exhaust, the only cap seems to be around the cat, deep inside the muffler. I wonder what happens if I take out the baffle material?

I'd be interested to know the answer to this question as well. I have the same exhaust.

 

[gk1]

The Indian stage 1 mufflers can be disassembled. @RBinTEX made a thread in the Scout forum about it.

 

[Boosterp]

That's right, I remember the thread.

 

[Matt138]

I took a good quality 1.25" hole saw with an extension and punched out the plug in the rear of the mufflers. It gives a slightly more authoritative sound.

I'd like to do this,will you feel it break loose? I'm a beginner and my skills are minimal. I just don't want to drill to far. Any more help is appreciated.

 

[Sgt Mike]

It still will affect it. If it's enough to really matter is another story. If your exhaust doesn't affect afr, why must you jet for new exhaust.

As long as the air filter/air box system is stock an exhaust mod will not affect MPG but in fact it enhances performance. Oh! and by the way you don't re-jet a fuel injected engine, that can only be done on a carbureted engine.

 

[Sgt Mike]

I'd like to do this,will you feel it break loose? I'm a beginner and my skills are minimal. I just don't want to drill to far. Any more help is appreciated.

You will need a drill, cordless or corded, a 12" extension and a good quality 1 1/4" bi-metal hole saw, I used a LENOX 1-1/4-in Bi-Metal Arbored Hole Saw Item # 348128 Model # 1772491 from Lowes
You will need to remove the stock mufflers. You can start from either end but the inlet end also has the catalytic converters that must be punched out or hole sawed so that you can gain access to the baffle plug. The cat. conv. is hard so let the hole saw do the work, don't rush it, it will saw through it. Once that is done, saw the baffle plug, then flip the muffler and do the other end baffle plug. Getting the pieces out of the mufflers requires shaking the mufflers, make sure that you get the plugs out. Having someone hold the mufflers upright while you're drilling makes the job easier. It truly not hard or complicated and I guarantee that you will enjoy the new sound. Let me know how you make out on this project.

 

[Mark fowler]

As long as the air filter/air box system is stock an exhaust mod will not affect MPG but in fact it enhances performance. Oh! and by the way you don't re-jet a fuel injected engine, that can only be done on a carbureted engine.

I was talking about a carbed engine. I thought that was understood (didn't need to specify). With fuel injection you would need a fuel programmer like a pcv. I should of been more specific.

I meant that since on a carbed engine if you mod exhaust you have to rejet, so obviously there is some change to the air to fuel ratio when you mod exhaust. If that change is big enough to matter though, with doing this, is another thing.