Fireman31 Posted April 18, 2013 Report Share Posted April 18, 2013 From my own experience with similar mods, you will make approximately 315-330 RWHP with a good aggressive tune.... Quote Link to comment Share on other sites More sharing options...
chawkins6789 Posted April 18, 2013 Report Share Posted April 18, 2013 I don't have headers being in commiefornia Sent from my DROID RAZR MAXX using Xparent Red Tapatalk 2 Quote Link to comment Share on other sites More sharing options...
Bouch252 Posted April 18, 2013 Author Report Share Posted April 18, 2013 Hopefully my headers and y pipe will be here soon. Hoping to have done by the 2nd week in may. Ill post up what it made. Thanks guys! Quote Link to comment Share on other sites More sharing options...
onebadmax Posted April 18, 2013 Report Share Posted April 18, 2013 (edited) Dynatech longtubes added 50hp at the flywheel with tuning, on a brand new stock LQ9. Edited: incorrect brand of headers. Here is the article http://www.hotrod.com/techarticles/engine/hrdp_0710_6l_ls_series_small_block/viewall.html Edited April 19, 2013 by onebadmax (see edit history) Quote Link to comment Share on other sites More sharing options...
canadianVRss Posted April 18, 2013 Report Share Posted April 18, 2013 ARH longtubes added 50hp at the flywheel before tuning, on a brand new stock LQ9. O.o any dyno charts on that? Quote Link to comment Share on other sites More sharing options...
onebadmax Posted April 19, 2013 Report Share Posted April 19, 2013 O.o any dyno charts on that? I posted the article above, I had the wrong brand of headers listed though. Been a while since I read the article and had it in my mind that it was ARH. Anyway 408 flywheel horsepower is awesome for only bolting on a set of headers and retuning. Heck the engine picked up 20+ hp without tuning. Quote Link to comment Share on other sites More sharing options...
canadianVRss Posted April 20, 2013 Report Share Posted April 20, 2013 I posted the article above, I had the wrong brand of headers listed though. Been a while since I read the article and had it in my mind that it was ARH. Anyway 408 flywheel horsepower is awesome for only bolting on a set of headers and retuning. Heck the engine picked up 20+ hp without tuning. I see you added the article. I am also impressed by those numbers, it really gained quite a bit. Quote Link to comment Share on other sites More sharing options...
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