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SRT Headers + Mid pipes + custom cat back dual exhaust = DONE

22K views 106 replies 26 participants last post by  piratius 
#1 · (Edited)
Man what a difference this has made to my WK 5.7L:eek:. I initially was going to do the work myself on the headers but some stuff came up and I didn't have the time I thought I would have. There is a real good exhaust shop right down the road that has done great work for my friends so I gave them a call. Well brought it in 2 days later its done. It sounds sick, butt dyno feels like it made improvements and now this sets me up for future engine mods. Best thing too is that there is no CEL =]

The main things needed to do this to your 5.7L is:
-SRT8 headers
-5.7L Gaskets(if you plan to keep the egr)/6.1L gasket (if you want to block it off) *I suggest using mopar gaskets as they are some of the best exhaust manifold gaskets out there*
-SRT8 Header bolts
-SRT8 Midpipes/Cats
-Cat-Back of your choosing

*If you plan on keeping the egr you will need to make an egr notch in the passenger side header.

Be warned there is virtually 0 room to work with. The shop even said they probably will never do this again :lol: or charge double what they charged me. They also had to weld a few brackets and such but nothing major. They said the biggest pain was getting the log style headers off. The tow hitch came off to make room for the dual 5" tips.

Thanks to 555ctsv for the advice you helped a lot.


http://www.youtube.com/watch?v=Uay0XCwi0CQ
 

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#3 ·
Its a custom bent cat back I bought off nifty97z for steal. Its got a magnaflow 12599 muffler with dual 3 inch piping running to 5 inch tips (no resonator)

I was weary of aftermarket mids because of emissions and through research people were saying the srt8 mids are pretty good.
 

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#10 ·
Bah got a p0430 code...Hmmmm maybe the bank 2 downstream 02 got jacked up on the install as the other side is not throwing a code. I checked for exhaust leaks there wasnt any. Im going to throw a new 02 in the up and downstream. If that doesnt fix it I will try a non fouler.
 
#17 · (Edited)
So just to be clear they're not SRT headers, they're SRT stock exhaust manifolds?
 
#19 ·
I just always considered headers to be something that people buy to replace their stock manifolds. I just wanted to be sure. I have been considering doing the SRT manifolds on mine, I have an exhaust leak, So rather than buying 5.7L parts, I might buy 6.1L parts, I was always concerned with what gasket to use, But now that I see that you can use 5.7L gaskets there is nothing holding me back.
 
#20 · (Edited)
I am running the stock SRT manifolds which are essentially shorty headers. In fact unless you plan on running long tubes I suggest going this route as its the best bang for your buck and they flow really well.



If you do the stock srt manifolds/headers and you keep the 5.7L midpipes you will need to use a reducer and you will also need to shorten your mids a little bit. As the srt exhaust manifolds/headers are longer and the diameter is .25" wider. As for the 5.7L gasket I used that as I opted to keep my EGR which in turn you will need to make a notch in the SRT exhaust manifold. My manifolds are also touching my transmission bell housing. So in the future I may shave a little bit off them. 555CTSV has a good post about how he did his headers also. I also suggest reading up on the LX forums as a lot of guys run this set up on their R/T's

Picture of the EGR notch someone made


Excellent! :thumbsup:

Do you still have spare tire mounted? I can't tell from the picture or Video.
The spare is removed. The piping runs where the spare use to be.
 
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