[99fxst99]

Got a 99 Suburban 4x4, 160K miles, runs great, no engine mods. For a "feel it in the seat of the pants" improvement, any suggestions? Computer mods? Exhaust? A little more mileage would be nice also..... Also, do I understand I can modify the trans shifting with the programmer?
Thanks!

 

[Doug C.]

I've got a 99 Tahoe , stainless headers , Magnaflow 2 in 2 out muffler , stainless dual pipes out the bumper , K&N filter charger , Hypertech Max progammer . Sounds tame at low speed but roars and slams you back in the seat when you nail it . Also gets much better MPGs when driven sanely . Keep your tire preasure up , use synthetic oil and other lubricants .

 

[99fxst99]

Programmer

Doug, can you tell me a little more about the programmer..what you can do with it and how much it helps?

 

[MrShorty]

Some say the most effective "feel it in your seat" modification is the differential gear ratio. What gear ratio are you currently running (see RPO codes in the glove box)?

 

[Doug C.]

I did all my mods one @ a time so I could see how much improvement each one gave me . The Hypertech Max allows you to adjust for gear ratios , tranny shift points , and more . Summit Racing 1-800-230-3030 , $379.00 Contact them , they can answer all your questions over the phone 24/7 They sell anything you could want for your truck and are very willing to explain how to use it .