Mods to get consistent 13's

[Gorske]

I have a 2017 Silverado Z71 double cab 4x4 5.3, 6 speed, 3.42 gears, drop in K&N filter, custom cat-back with a Black Widown Vemon 250 muffler, and a Klug Performance e85 tune. I have had one time slip in the 13s when it was 48 degrees this Spring. With some tune adjusting the rest have been consistent 14.10-14.20 1/4 mile times with the warmer 70s-80s summer temps. I am very happy with my times considering it ran 15.20 stock but just wondering what suggestions you guys might have mod wise to get my truck running consistent 13.90s? My thought was long tube headers because I've heard they are good for around 2-3 tenths with tuning. If you guys have any other recommendations please let me know.

 

My current best times.

[country_09]

Longtubes and maybe a small converter...I love the converter in my 01 I have. Made a huge difference

[truckguy82]

Yeah i think just letting it breath will get you there.

[408LSX]

I just installed Texas Speed longtubes, 6.2 intake, and a Katech ported LT1 TB on mine. Made a huge difference, truck pulls alot harder and I still haven't had it retuned yet.

The headers alone would put your truck in the 13s consistently.

[Nasty]

I just installed Texas Speed longtubes, 6.2 intake, and a Katech ported LT1 TB on mine. Made a huge difference, truck pulls alot harder and I still haven't had it retuned yet.

The headers alone would put your truck in the 13s consistently.

How do the Texas headers fit. Catless? I'm looking into headers for my truck but I don't want it to loud

[408LSX]

How do the Texas headers fit. Catless? I'm looking into headers for my truck but I don't want it to loud

Yes they are catless and the fitment was great. Probably the easiest set of headers I have ever installed. Very happy with them.

[country_09]

Texas speed here as well. Great fit all through the y-pipe. Just get new clamps cause the ones you get suck. For the loudness, get a quiet muffler..it'll still be raspy but not as loud