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12-30-2010
Ok so I've been running with my 3" DP for a few months now and I have a little christmas money laying around, basically enough to pick up a set of SD header or a PLOG. I know that the prevailing wisdom is that headers are much better than a PLOG/DP set up. Thing is header seem like a PIA install to me, or a really expensive one for a shop to do (I got quote $400 from several local shops)
My question then is, is there anyway to make a PLOG/DP setup work safely beyond the basic 3.4 pulley setup?
12-30-2010
Sure...get an intercooler.
That would be my suggestion.
12-30-2010
yes
but you'll need more mods for the pulley size/power level you want to get to.
12-30-2010
get headers. its worth it. you can do it yourself without a lift or anything it just takes time. even when it comes to the money part how cheap you can get those headers for. i have them and love them.
in the end headers will definatly be a lot safer and i would strongly reccomend them even with a 3.4 setup. if your going below that with a plog and dp.. i wish you luck.
12-30-2010
Headers are nice...but they aren't necessary. If the guy wants to have a PLOG/DP setup...why not? There is a local with a 3.0" IC'd setup with just a DP...maybe a PLOG...I don't think he does...but anywho...its all about the tune. His is custom...rockers and IC...it runs its a$$ off.
12-30-2010
Like everyone said there is no reason you can't run a Plog/downpipe setup. You will just need a few more supporting mods I'd assume to run a 3.4 safely.
I completely understand why you don't wanna do headers. I think most people that get a downpipe kind of kick themselves in the ass for getting one because eventually they want headers.. That's kind of out of the question for me for various reasons, so I'm going the Plog/DP route, however I'm also N/A. good juck!
12-30-2010
Originally Posted by colindunn
I have SD headers how did you deal with the o2 snsr hitting the floor pan. its an easy install. be careful getting the old headers off. I broke a stud in the block and had to get it towed. wouldve been cheap if i were patient. o and i pretty much dented in my floor pan to get the o2 snsr off the body with was vibrating the p*ss out of my car
12-30-2010
if i would do it again i would just port the stock manifolds a little and run a 3" downpipe.
12-30-2010
I love the fact headers flow so well...but I hate the fact no headers but the billion dollar ZZP ones work perfectly...
screw the 3800 header options.
12-30-2010
ok thanks for the responses all. You guys basically hit on all of my concerns with headers. I checked out that thread (author escapes me) that looked at pros and cons of each header model and it seems like all of them have an issue, be it clearance, leaks, etc. I figured an IC might be a possible solution. Either way I'm not quite there yet but it looks like time to order a plog. Thanks again.
12-30-2010
i wanted headers but seems like all have probs exept expensive ones.
12-31-2010
I paid $159 for my headers, and $75 for some header wrap, $5 for some copper sealant, and even used the crappy clamps that came w the headers, had no problems. When I put my engine back in, I'm going to get better clamps this time. Oh, I used gm manifold gaskets. The downpipe on the headers is pretty dumb, and bottomed out right away, but hasn't hit since.
12-31-2010
what set did u use?
01-02-2011
Just set aside some time and put headers in yourself. I paid when all said and done around 350 dollars for my speed daddy header install (this includes napa easy seal band clamps, copper rtv, pipe expander, etc). An intercooler is going to cost you more.
Just do reading before hand and know what to expect and deal with it.
Even if you intercool I guarantee you will come crawling back to wanting headers to drop yet another pulley size.
01-02-2011
speed daddy headers
01-02-2011
This ^^^^^^ FTW Bang for the buck speed daddys offer for so cheap, who cares if its not 100% perfect. Any other part for the 3800s better for 200 bucks??
01-02-2011
extrude hone the manifolds...
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