LMM: Headers & up pipes

[Pwinland95]

Well guys my tranny is gonna be getting pulled shortly. Is it worth doing headers and up pipes while its out? I know it makes everything easier to reach but is it worth the money? I have a Danville 68mm stg2r but I'm not looking for huge hp levels as I am on stock fuel with a fass 150.

 

[N2BRK]

IMHO no. on stock fuel you are already over 600hp on that charger without getting crazy.

 

[roxyfever]

If ypur not looking for big hp id skip the manifolds and up pipes

 

[TheBac]

Manis and ups do help if your looking to get every scrap of power out of your combo, but for what you're after, those and/or headers are overkill.

 

[hipp11B]

I'd doubt you would see HP gain but it won't hurt and they definitely sound better


Lbz, built trans, efi by Danville, Danville 68, full egr delete, mbrp down pipe, 5" mbrp to 7" stack, ppe guages, custom traction bars, airdog2 165, ppe fuel rail mods, s&b, afe blade runner, Arp head studs..died March 2015

Parts collected for the build. SoCal super damper, SoCal billet flex plate, SDP S400 kit, II 85% CP3, PPE manifolds/up pipes, PCV reroute. Slowly but surely lol

 

[Ne-max]

Put money towards studs

 

[C.bowles2]

Im running the same turbo with ppe manifolds and up-pipes and im still on stock fuel on my Lly. But with a 1/2 inch line straight to the cp3 from my fass. (Not sure how much that helps) my egt's peak at like 1200 degrees wot according to my cts probe and monitor. Before the turbo and manifolds it woukd easily go to 1600-1800. Im not sure if it was just the turbo that brought my egt's down or the manifolds and up pipes. But i agree the money could be used better for something like studs. But yes it is a lot easier to do the up pipes now with trans out in my opinion.




Sent from my iPhone using Tapatalk

 

[c20elephant]

Watch these videos on a 200,000 mile motor, uppipes only yes.


https://www.youtube.com/watch?v=Jv4eZQYHd54


https://www.youtube.com/watch?v=_yDQOJU4oC8

 

[BLACKMAX1]

Definitely helped me out, like Cbowles said my EGT's are way cooler but I'm not on stock fuel either. For you at this point studs would be a great decision, but its up to you.

 

[Yellow Jacket]

I would buy LML driver's manifold and full 2" SS up pipes from HSP if you are gonna do anything.

 

[N2BRK]

The stg2r lowers egts in my experience. I'm on stock up-pipes and even a stock ybridge (two straps or it'll blow out,lol) and I'm past 600hp on stock fuel system with larger tips only. Egts are great.

 

[Pwinland95]

I have an lml driver side manifold but haven't put it on yet.. And also running hsp's y bridge. Just couldn't justify the extra money for headers and up pipes unless it's a significant difference. Also, I didn't realize that studs needed to be done on the lmm's but that is good to know.

 

[WolfLMM]

My understanding is, that the LMMs have pretty good HGs and bolts factory. Better than LLY/LB7 trucks. I don't plan on replacing mine with studs until I know the HGs are blown.

 

[BLACKMAX1]

Mine still has factory head studs. To me it was worth doing the manifolds/up pipes and all the charge air pipes. Fill out your signature and help us all out.

 

[Pwinland95]

Sorry Blackmax I will do that, just recently joined this forum seems there are better guys on here than duramaxforum

 

[BLACKMAX1]

Yea man this forum has a ton of info and knowledgable people. A lot of which has been covered so the search function will get you pretty far too.

 

[WolfLMM]

Sorry Blackmax I will do that, just recently joined this forum seems there are better guys on here than duramaxforum

Yeah absolutely. This forum has the best of the best.

 

[Pwinland95]

I suppose if I come across a decent deal on a set I may go ahead and pull the trigger on them. We will see what happens, hoping to pull the tranny sometime this month and go from there. Really excited about trying the limitless converter with my stg2r

 

[WolfLMM]

I'm jealous

 

[bml2200]

FWIW, manifolds (or headers depending on HP goals) and up pipes make noticeable difference.