2005 GTO W/SHORTY HEADERS

[derricksumpter]

U7191 2005 GTO..WILL JBA SHORTY HEADERS HELP MY VEHICLE SINCE THEY HAVE ONLY A 1 5/8" PRIMARY OPENING VERSUS FULL LENGTH AND 1 3/4" OPENING?

[motitus]

U7191 2005 GTO..WILL JBA SHORTY HEADERS HELP MY VEHICLE SINCE THEY HAVE ONLY A 1 5/8" PRIMARY OPENING VERSUS FULL LENGTH AND 1 3/4" OPENING?

I would like to know this as well because I received my set of JBA Shorty Headers and was planning to have them installed soon.

[06MonteSS]

yes, they will help - compared to the stock manifolds...

[derricksumpter]

WILL I HAVE TO MODIFY MY DIABLO TUNE FOR THE CHANGES? (JBA SHORTYS AND HIGH FLO CATS,1.85 ROLLER ROCKERS)

[06MonteSS]

do some data logging and check your ltft's during normal steady driving/cruising and re-adjust your injector slope as needed in order to get your average ltft's in the 0 to -2 range...

http://diablosport.com/index.php?name=P ... opic&t=917

[derricksumpter]

Decided to go w/long tubes,any idea if extesions are needed for 02 sensors?

[06MonteSS]

not sure about that, but you will need to get a custom tune created now since you went with LT's...

you'll get trouble codes thrown from the O2 sensors, so you'll need to get a custom tune created for ya in order to disable those trouble codes...

[derricksumpter]

I am installing high flow cats w/o2 sensors also,this will still throw o2 trouble code?

[mikel]

I am installing high flow cats w/o2 sensors also,this will still throw o2 trouble code?

It may or may not, depending on their location and brand/type, but it can all be handled through a bit of Lews magic.

Good choice to go with the longtubes, they are a great addition.

[lilray4]

Ok first time on here just got my predator. I have a 2006 M6 Gto have AEM intake, Slp headers long tube, and no cats, X piping, whats a good tune for these upgrades.

[CANUCKPREDATOR]

Diablo tune.

[derricksumpter]

W/Full exhaust,Volant CAI,Diablotune,should spark plugs be upgraded or are the factory plugs ok?

[06MonteSS]

stockers are fine...

[IEATWS-6]

I have shorties on my 06 A4 GTO and they made a big difference. High flow cats are over priced for the 1 HP gain over stock though. And as CANUCKPREDATOR said, the Diablo tune works well!

[motitus]

I've only selected the 91 Octane Tune. Does the Diablo Tune use 91 Octane also or something diffferent?