Install: Flo-Pro 4" Down Pipe w/ 5" DP back exhaust

[99CepekZ]

Posted on here awhile back about getting a tuner and exhaust, well I got everything installed a few days ago. I noticed a lack of how to threads/videos on doing the down pipe, which was really the only thing that I had any questions on. So I decided to make a short one with pictures from when I installed mine. Also included is before/after clips of the stock vs. new exhaust running a Spartan tuner.

Video shows installing a Flo-Pro 4" down pipe. I felt installing the exhaust was pretty strait forward, no need for pics of that. A few tricks that helped me to remove/install the down pipe:
1. Remove clamp connecting exhaust to down pipe and push the exhaust back, if need be hold the exhaust back with a ratchet strap. This allows you to move the down pipe back off the turbo.

2. With exhaust out of the way you should be able to grab the down pipe, reach as far up as you can from under the truck and push the down pipe off the turbo. This allows you to pull the down pipe down about 6" which give you ample cutting room with a saw.

I understand a lot of you have already done these mods, but I figured this thread could possibly help people that are looking to do them. Video goes into a little more detail than I typed in here.

Installing Flo-Pro 4" Down Pipe, 5" Flo-Pro exhaust - YouTube

Installing Flo-Pro 4" Down Pipe, 5" Flo-Pro exhaust - YouTube

[Stroken49s]

Great post, I was wondering The restrictions of the factory dp, cause I was looking at diamond eye turbo back vs dp back but heard stay with stock cause diamond eye dp was crap

[CountryAggie]

Awesome writeup man. I'll add a link in the 'General 6.4 Modifications' sticky when I get home tonight. (And replace my hastily written up crap).


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[WoodBoy]

Originally Posted by Stroken49s

Great post, I was wondering The restrictions of the factory dp, cause I was looking at diamond eye turbo back vs dp back but heard stay with stock cause diamond eye dp was crap

Ive seen several people have fitment issues with the diamond eye hitting the firewall. You can go ahead and put it on and if it does hit, just take you a hammer and put a little dent in it and you should be good to go.

[X2guy]

Good write up. Thanks
Do you think the stock exhaust will bolt back up to the flow pro dp? The flanges look very similar. Im only asking as i may need to return to stock to pass emissions inspection in my area. This has been my hang up in purchasing an exhaust. Cant really get a straight answer.

[WoodBoy]

They should bolt ride up. Factory downpipe fits factory exhaust, factory downpipe fits aftermarket exhausts, so aftermarket downpipe should fit factory exhaust. Placement is the same and fitment (ball and socket) is the same

[99CepekZ]

Originally Posted by WoodBoy

They should bolt ride up. Factory downpipe fits factory exhaust, factory downpipe fits aftermarket exhausts, so aftermarket downpipe should fit factory exhaust. Placement is the same and fitment (ball and socket) is the same

Yeah, I agree. There should be no issue there.

[X2guy]

Ok...its just not always the case when you buy a complete turbo back exhaust. Some manufacturers use a different coupling from stock.
I think i will be going with the same setup as you.

[X2guy]

Heres flo pros turbo back system...no flange to connect to the down pipe. Did you buy a dp back system and a dp seperate in order to get the flange?

[99CepekZ]

Originally Posted by X2guy

Heres flo pros turbo back system...no flange to connect to the down pipe. Did you buy a dp back system and a dp seperate in order to get the flange?

Yes, when I ordered my tuner I ordered a packaged deal that came with the tuner and the turbo back exhaust. I ordered the down pipe off of ebay. Both the down pipe and the exhaust are Flo-Pro.