I recently installed a pair of Flowtech long tube headers on my '86 F150. The routing of the rest of the exhaust was challenging with the 4X4. So, I made a new system. After both header collectors there is an immediate 90* outward turn, then a 90* backward turn, followed by a 31" Hush glasspack (perforated tubes), and finally a 45* turn out. It turned out pretty good, I like it. It also sounds awesome! I just need to do some touchups with clamps and hangers. Check it out.

 

sweet,i've always like the exhaust exiting before the rear tires

 

hell yeah!!!!

must sound like a pavement pounding MF

 

Definitely! But, I should have cleaned the undercarriage before I took the pics. I took the pics after having the truck stuck in mud ruts.

Hey nice Flareside btw. I love the color combo and wagon wheels. Flaresides rock!

 

looks great im looking at doing the same on my 82 f150, so its nice to see some pics of it. How does it sound.

 

I did my 80 like that. But on the 2nd 90 on each side, I turned it up at a 45 degree angle. I then added another 45 after that and that brought the whole system up higher in the truck.

You have those running boards hiding most of yours, but if you took them off, you could see the whole exhaust hanging down from a side view of the truck and I didn't like that. What I did at the rear was the same as you did, except my 45 at the rear was turned out and down at the same time to bring the exhaust back down to clear the bottom of the bed. The only difference that made was my outlet pointed more to the ground than yours.

 

No crossover? My exhaust dumps before the diff, but not out the side, just underneath.

 

My experience is if you do not exit the exhaust beyond the body, you get a terrible drone noise in the cab and it's very loud and annoying.

I also think crossovers are not worth the trouble in a DIY situation. They make the exhaust harder to take apart and I have a welder and a torch and could put one in, but as you can see in the pictures above, no welder is required to put that together so anyone can do it.

 

Franklin2, I originally wanted to route my exhaust the way you described to bring the system up close under the truck. Like you said, my running boards hide it, but I am not too fond of the running boards, so eventually I will probably do it like you described. I just didn't feel like spending the extra money for clamps and more angled pipes.

It sounds really good. I love the glasspack sound. Of course, you could use virtually any muffler and route it out the sides. But, it does sound cool coming right out the sides behind the windows regardless of the muffler (glasspack, turbo, chambered, whatever...).

 

We have interstate 81 near our house, and there are a bunch of narrow roads that cross over it, and they guard rails on both sides. If you have something like this, roll both windows down and get on it.

 

Yea man! I had true dual out the passenger side in front of the rear tire with 2 glasspacks for awhile. I was on a fairly long bridge crossing the Shenandoah river with jersey walls on both sides. My girlfriend was looking out the window at the scenery and I couldn't resist. I punched it and let it wind up through 2nd and 3rd. It was loud as hell with the windows down and the wall about 2 feet away!

 

It is very loud, but not annoying! No drone due to the exhaust design. I take your point though that its a little more difficult in the DIY situation.

 

ok i have my cat still on my truck and i have straight pipes all the way back and i like how loud it gets but it lacks the growl that i want is there anyway that i can make the exhaust system so i have the same loudness with a deeper growl

 

I did mine exactly like Dave's...got the idea from him actuallly. Looks and sounds great.

 

wow, nice!