I finally got my 4” exhaust hooked up yesterday. WOW, what a difference it made in the old heap. It really woke the truck up. I can’t believe the difference it made on how quickly the truck revs up. I drive it like an old man (of course I am) and usually shift the truck around 2 to 22 thou. Now I can’t stop the thing from reving to 3 before I can move the lever. Been racing and building hot rods all my life and I have never seen an exhaust make so much difference. I have been making up excusses to drive the truck anywhere for anything ever since.. I am a happy camper:hyper:

Sometimes I feel a disclaimer should be included with diesel parts and accessories. Such as may cause you to smile ear to ear when you fire the truck up in the morning. Fuel mileage may vary during the "honeymoon" period. When your turbo(s) spool, you may giggle like a little girl. When towing you can multiply the effects by 2. When towing a Ford or Chevy, at least x5. Glad you are enjoying the new exhaust.

Very well stated.

Sometimes I feel a disclaimer should be included with diesel parts and accessories. Such as may cause you to smile ear to ear when you fire the truck up in the morning. Fuel mileage may vary during the "honeymoon" period. When your turbo(s) spool, you may giggle like a little girl. When towing you can multiply the effects by 2. When towing a Ford or Chevy, at least x5. Glad you are enjoying the new exhaust.

There needs to be a diaper with every set of injectors, a programmer, or exhaust kit.

Been racing and building hot rods all my life and I have never seen an exhaust make so much difference. I have been making up excusses to drive the truck anywhere for anything ever since.. I am a happy camper

I thought the same thing! lol. It's amazing! Glad you're having fun!

What did you have prior to the change ? Is your truck modded or all stock ?

Stock exhaust, stock truck. Only thing I have is a K&N air filter and I removed the silencer ring from the turbo. I put on a 4" turbo back exhaust to twin 6" stacks, it was a huge upgrade. Then the noise got a little much on longer trips so I installed a muffler and it quieted down pretty good.

There needs to be a diaper with every set of injectors, a programmer, or exhaust kit.

Stock exhaust, stock truck. Only thing I have is a K&N air filter and I removed the silencer ring from the turbo. I put on a 4" turbo back exhaust to twin 6" stacks, it was a huge upgrade. Then the noise got a little much on longer trips so I installed a muffler and it quieted down pretty good.

Get rid of the k&n!

Get rid of the k&n!

Whats wrong with the K&N?

The oil from the cotton filter will get sucked onto the compressor wheel of your turbo and gum it up. It will collect all the contaminates and glue them to the turbo.

The oil from the cotton filter will get sucked onto the compressor wheel of your turbo and gum it up. It will collect all the contaminates and glue them to the turbo.

Really!? That's not good at all! Hmm Well it looks like I'm on the hunt for a BHAF!

Yep maybe mike or one of the guys with some photos will chime in. I would pull off the intake elbow and take a look at the turbo.

You will like the BHAF... It takes about 5 min to install... The only bad part, and you don't really have to do this, but you might want to build a mount for it. I am building a simple one for mine.

This is my setup. I didn't bother with a mount but it does move! I will be looking into something to fix this. Also be sure to cover the AC line. Mine was not rubbing at first but after a few thousand miles its starting to wear. Check out Car Quest when you start shopping. The had the WIX filter for $30. Can't remember the part number off hand...

Where did you get your exhaust from? Been looking into a 4" but I cant find anyone around here that will bend pipe that large.

Where did you get your exhaust from? Been looking into a 4" but I cant find anyone around here that will bend pipe that large.

Mine's a MBRP 4" SS kit.

I guess I will have to order a kit then

Well there are exhaust shops that do them. There is one near me that will do a custom 4" SS w/o muffler for a little over 300

I got mine from Vulcan Performance. It was a Diamond... It is a good exhaust, but if I had it to do over again I would buy a better kit. It came with all the hangers as bolt on hangers and it was a pain in the butt to install. I would spend more money and buy one that had all the hangers welded on in the stock location just for ease of installation. It should have taken less than an hour to install, but I was at it for the better part of two and a half hours getting everything lined up right. Sounds good though... It was worth it.

I bought a kit off Ebay some time ago... had hangers welded on. Muffler was a straight through glass pack... legal but not quieting IMHO. If I'd bought the FTE spiral resonator the first time could have deleted the muffler & been ahead of the game.

My MagnaFlow system isn't a true 4" system, the downpipe is 3.5", but it has the hangers welded on and seemed to me to be a very good buy for the money; it was ~200 shipped from Summit.