[CraigT]

My buddy and I both have llys, his is an 2004.5 and mine is a 2005. he is worried something is wrong with his truck. I have LBZ intake and mouthpiece and the maf is been flashed. I also have 4 in from down pipe back no cat or muffler. his is stock. I have 185 75 16 and he has 165 75 16. Mine pulls quite a bit harder then his, even though I have bigger tires. Will these mods make that big of a differance. or could he be having a problem. His truck is smooth, starts great and gets 18 mpg on the highway. I think his truck is fine. just looking for some opinions

 

[TNASH481]

The exhaust would make quite a bit of difference with no Cat or muffler.

 

[CraigT]

bump

 

[Pat H]

Those are some smallass tires...don't they come stock with 245/75/16?

 

[CraigT]

Those are some smallass tires...don't they come stock with 245/75/16?

Yes my bad, 245 and 285

 

[chanzilla]

I don't think your buddy's truck has any issues if it performs like that. Opening up the exhaust and intake will really help a truck's pep. If I were him i wouldn't be worried.

 

[SEABEE_Dmax]

x2

Sounds like its working fine to me. Thats about how mine ran prior to getting rid of the cat and muffler and putting on the 325's.

 

[Hoythunter2865]

Ya my exaust really opened mine up and I still have an lly mp

 

[chevylovinfordtech]

explain to him how he needs a mouthpiece, exhaust and dsp5 tuning :thumb lol

 

[SEABEE_Dmax]

explain to him how he needs a mouthpiece, exhaust and dsp5 tuning :thumb lol

Exhaust and mp:thumb:thumb
cant wait myself for efi live and CAI. Waiting on my taxes and then its on like donkey kong.:gearjamin

 

[CraigT]

we put a mouthpiece on yesterday, not much difference that we can feel. we have the lbz cold air intake but need the efi to flash ecm before we can put it on. I will hopefully be ordering efi live for both of our trucks today, from Dustin if all things work out.

 

[chanzilla]

Thats a good choice ! ^^^

 

[WVRigRat08]

headstuds, built tranny, twins, 60 overs, and duel fuelers. then he wont have any worries til it lets go.

 

[mharroll]

my lly had aworld of difference after cutting out the cat and muff