Diamond eye exhaust

[93cummins89]

For those of you who know about these things. I want to know if a 4" diamond eye is worth the money. But wich do I get muffler or non. It's already had a muffler delete and its loud but not bad and that's with stock exhaust.
Will no muffler on a 4" be to loud?

[Farmboy]

Too loud is quite relative... I have 3" to the t-case then it steps up to 5" dumped out right in front of the rear tires. No muffler. Its loud, but I think it sounds great. However i am sure it would be "too loud" for some.

It will get a little louder going from 3" to 4" but mostly you will get deeper tone.

All depends on what you like.

Others will chime in on performance difference I am sure, but my thoughts are, the less restrictions the better.

[ellis93]

Idk.....the 3" pipe,no muffler,was louder on my truck. The 4" stuff is deeper sounding but is no where near as loud.

[93cummins89]

Thanks guys I'm trying not to go to over board on all this stuff. I know a lot of people like the diamond eye. And being a diesel newbie I'm trying not to get on people's nerves

[ellis93]

No one here will be an ass.....ask anything you want.

[RCCUMMINS89]

Diamond Eye is BY FAR the most common exhaust used on 1st gens. MBRP also makes a kit, but it is a little more money..... which is why everyone uses Diamond Eye..... we do actually get slightly better reviews on the MBRP kits.

[93cummins89]

Update.
Diamond eye is in with a 5" tip sounds f$&:)@? Amazing. Diamond eye has one very happy customer.
Next up on project grandpa. Bigger intake and IC tubes

[Tacoclaw]

A second turbine wheel is very effective at cutting down on noise levels.

[93cummins89]

Heck no I like it. Low deep moan with a good turbo wistle. Happy as a kid in a candy store

[RCCUMMINS89]

That makes it perfect. Glad you like it.

[u2slow]

Get the kit with muffler even if you don't use it. Use it on something else or sell it. It was only $15 extra.

I'm only running the front half of the kit to get past the tcase, then I used some other 4" stuff I had kicking around to make it sweep out just ahead of the rear tire. Now I have the whole mid and tailpipe section to use in my Ramcharger.

[Tacoclaw]

The rear was tight on my RC (heh), the axle and fuel tank are tough to get around, especially with the muffler. I believe I had to buy one tight-radius, 4" 90* (or 45*) and cut it super-short to get from the muffler to above the axle in the room I had. I didn't run the tailpipe either, just stopped it right after it turns down behind the axle and turned it out a bit.

[93cummins89]

mine just slid right in not many problems at all..the biggest problem i had was trying to match the frame bend with the bent in the pipe..ALSO i highly recommend having a helper i did it by myself and it was a slight pain..also wear gloves that pipe ate my hands up like sandpaper

[Dualtire90]

I ended up building a custom exhaust for my 90 dually because no one makes a dual outlet kit that I could find. I used a 4" Diamond Eye down pipe and expander to 5". I had a bunch of 5" pipe laying around and worked with what I had for the rest. I was very impressed with how well the downpipe was built and finished. If their full kits are anything like it, I wouldn't hesitate to buy one.