People I am installing maganflow exhaust , lower pulleys , predator tune, drilling out air box , jba headers, and jlp intake ... is there anyhting else i could buy to make my truck run to its peak performance...

 

You trying to hit 425rwhp?

Took me 6lb lower, s/c port, filter and tune..

 

Heres my list, 4lb lower, accufab throttle body, full Kooks exhaust-magnaflow catback, JDM tune, JDM E Fan, Tr-6's and I think thats it on the motor end, resulting in 444HP.

 

My OPINION is you are wasting your time with the exhaust.All you really need is a good tune 6lb and air intake.The rest is great if you want to spend money but from what i have witnessed first hand is simple.If you want SERIOUS power, you need a bigger blower.My truck has every bolt on imaginable and the only things that really made a difference is the chip/pully.and any kind of breath of fresh air.FYI my truck has the following


jdm chip
6 lb pully
intake
headers
phelonic spacer
aftermarket heat exchanger
transmission modS

it runs 12.50s@108
It has about the most aggressive late model tune for a stock block you can get.

my previous 3 lightnings just had chip/pully/intake and ran
(02)12.60@106 in 02 (4 lb pully)
(00)12.70@105 in 00 (4lb pully)
(99)12.9@104 in 99 (2lb pully)

As you can see there is no huge amount of difference between the three that were all modded the same and my new truck which is modded to hell.
I would also like to point out that my opinion is the better times as the trucks get newer were due to the tuners learning more tricks as years went on and nothing else.

I would also like to point out that i am willing to bet the tune/6lb pully compared to 4lb pully is my MPH gainer along with once again latest tune and NOT the other bolt ons............save your money for a bigger blower if you want to really make power......my .02

with chip/pully/intake you very well could be making 425 RWHP with a good tuner.

All my times are with factory f1s.....

i personally would not waste my $$ on fans,exhaust,spacers,heat exchangers,or any other of the gotta have mods.LOLThe y dont make any kind of differnce that is noticable.They are just ways to spend money and for the tuners to make money.
This is my edjucated opinion.
I reccomend JDM PSP or JL.

 

Now that what im talking about. Thats the same mods Im putting on my 02 that I just bought. Will the predator be fine for this or do you need custom tune?

 

The full exhaust gained me 15 hp and 22fpt on JDMs dyno, so was it worth 2 K, HP wise, no, but it does sound awesome. As for big gains a blower upgrade is a choice but in my opinion you cant just go and buy the blower of choice and go, you need injectors, pumps, maf ect... will the stockers hold up, maybe but they'll be right at the max, not smart, so your going to be looking at a 3500.00 buy in to get a small KB plus the extras add another grand for an install and 500.00 to dyno tune it and you have a 5k buy in. As for the predator it's fine but get a dyno tune by a reputable tuner, many trucks react different to similar mods.

 

In the long run I personally think it's still cheaper to go right for the larger SC.
Ya you can squeeze a lot out of it other ways, but what usually happens instead is people spend 2K (sometimes 3) on a 15-20 HP sound system. Then a 4lb pulley, then a Ported Eaton, then an upper pulley, then an electric fan, then a CAI system, then a Maf, then Pumps and Inj's, then, then, then ....
And tuning all along the way, It adds up quick ....

 

Whay i have noticed with "out of da box" sct or predator tunes is they do make a noticable difference,however they are not nearly as refined or do you get full potential of your truck.Do they work?? absolutley, ive had one .You are just not going to be running full potential.It could be the difference of pulling 12s EVERY night on demand or running low 13s......shootin for that 12 second pass with pefect air/ and traction To that there is a huge difference for braggin rights but there is no doubt, you will feel the power.

 

Amen!