LLY: Down pipe question

eutsey04

Gearhead
Mar 22, 2013
51
0
6
Scottdale pa
I see there are tons of down pipes for the Lly lbz lmm.. Are there really better flow and more hp out of different ones or are they all the same.. Also I'm looking to buy one so if anyone has one for sale let me kno thanks
 

Mikey

Drag Racer
Jun 13, 2009
560
3
18
I see there are tons of down pipes for the Lly lbz lmm.. Are there really better flow and more hp out of different ones or are they all the same.. Also I'm looking to buy one so if anyone has one for sale let me kno thanks

I've got one
pm me an offer
 

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Dozerboy

Well-known member
Jun 23, 2009
4,917
496
83
TX of course
What are your mods? They dont seem to add much if any power to mostly stock trucks. Now if your straight piped I would do one just to get rid of the scalded cat sound of the stock turbo.
 

frankenstien

Member
May 25, 2015
587
2
18
Fairbanks,Alaska
They have to flow better than the stock ones, the stocks are pretty flat.only thing ive heard they really help with is the EGT'S dropping quicker.

That being said when i put a straight pipe exhaust on my truck, i put one on as it was only 100-120$ or something, got mine from ProFab , i would highly recommend, pipe fit good and customer service was awesome
 

PureHybrid

Isuzu Shakes IT
Feb 15, 2012
3,517
501
113
Central OH
I did mine purely for sound. It was a sucky job but worth it IMO. I went with a PPE one because it's stainless and I deal them.

x2, go stainless. DHD had the PPE downpipes on sale $135

I had a Profab pipe before, and fitment was good, can't complain there. But it started to rot out on the bottom flange/weld, thanks Ohio!