average hp gain on longtubes
average hp gain on longtubes what kind of hp gain u guys had with installing longtubes and true duals. Im planning on installing qtp headers with true duals over the axle. Its gonna cost quite a bit for the installation so im trying ot find out what kind of gains would i see. THe install includes a dyno tune and dynatech cats
Teching In
Joined: Feb 2006
Posts: 7
Likes: 0
From: Durham
Originally Posted by SS1875
I gained 21 rwhp with my headers, 33rwhp with my headers/y-pipe/catback and no tune.
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I don't have any numbers but i was wondering the HP gains myself cause i installed some along with everything else so i won't notice a difference from the headers alone.
Also yeah you should install them yourself it's pretty easy. Easier then i expected as long as you jack the car up enough they should slip right in through the bottom like mine did. Driver side will go in from the top and the passenger side has to go in through the bottom atleast this is what i figure out. But if it's jacked up they both go in from the bottom really easily. Mine are pacesetter too.....
Also yeah you should install them yourself it's pretty easy. Easier then i expected as long as you jack the car up enough they should slip right in through the bottom like mine did. Driver side will go in from the top and the passenger side has to go in through the bottom atleast this is what i figure out. But if it's jacked up they both go in from the bottom really easily. Mine are pacesetter too.....
Last edited by 89tang; Feb 15, 2006 at 02:01 PM.
The crappy Hypertech "tune" isn't what you'll want. I never felt any gains from mine, and I'm sure the "tune" it is capable of is very basic. You'll need your timing advanced a little and the car leaned out a little as well. Hypertech also doesn't delete codes, and you'll need to delete the ones that'll pop up from the install.
Originally Posted by JamRWS6
LTs will need to come in from the bottom. Stand the collector on the ground and the height of the header is how much you will need to jack the car up to get it in.
Originally Posted by KurtRardin
With my Vinci tuner i didnt have any codes after my pacesetter install. I just figured on advancing the timing 10 degrees to compensate for it running richer after headers.
