i need to know if a 2004 gmc with stock 5.3 373 gears and just a tune k&N and spacer oh and with no cats and of course a flowmaster can hit an et of 13.7 in south texas weather... really need to know if this is happening cause if so i need to sell my truck cause somethings wrong. i just cant believe this i hope theres others that feel the same way as me....

 

not gonna happen

 

Um NO

 

nope.... mid 14's would be the lowest.... .02

 

to what everybody else said......

 

 

I cannot put it any other way. Like i said it before.

 

whats wrong with it not hitting a 13.7...and why would u sell your truck?

if u wanted 'speed' with just bolt-ons u should of bought a civic dude.

 

Add a cam,stall,and long tube headers with more tuning and you should get there. On a reg cab ,close on e/cab.

 

hell no! if that were true everyone would be runnin 13's.