Lady Deuce got her tubes untied
#51
Your correct, stock is 2.25 and the 2.5 is plenty anything more could constitute a performance problem if your not putting big whp down and shoving crazy amounts of exhaust down the pipes.
#53
Matt, definitely look into that more and let us know what you find out. I'm curious to see what some pros have to say.
#55
Just a Lew tune, 2.5" Magna Flow Cat backs, K&N, I don't really think the ram air hood amounts to much of a performance mod.
#57
Tadd, do you know how much horsepower yours is pushing currently? Curious if you have exact numbers (had it dyno'd) or if you can estimate it.
#58
I don't know for sure Matt never had her dyn'd
Had people tell ne anywhere from 350 to 400 HSP but that is just a guess
#59
Never heard of that, source of info?
Stock LS4 is 2.5"
3" is perfect lol
If you've already invested in a 2.5" Magnaflow cat-back to replace your 2.5" factory cat-back, I understand your dilemma. My recommendation to those looking to upgrade their factory system is to go 3" with a 3" downpipe, and if you're doing headers certainly then to step up to 3".
Still larger than stock which is only 2.25" I believe
2.5 is perfect
If you've already invested in a 2.5" Magnaflow cat-back to replace your 2.5" factory cat-back, I understand your dilemma. My recommendation to those looking to upgrade their factory system is to go 3" with a 3" downpipe, and if you're doing headers certainly then to step up to 3".
#60
The Source was the Thorley sales person
My magna flows are bigger than my stock exhaust and they are 2.5 inches
Could swear the stock ones where 2.25
I would not have ripped out the stock exhaust to replace it with one the same size
Any rate the Thorleys are 2.5" and the magna flows are 2.5
So is it is too much cash involved to change out now
My magna flows are bigger than my stock exhaust and they are 2.5 inches
Could swear the stock ones where 2.25
I would not have ripped out the stock exhaust to replace it with one the same size
Any rate the Thorleys are 2.5" and the magna flows are 2.5
So is it is too much cash involved to change out now
Last edited by Tadcaster; 01-22-2014 at 05:57 PM.