2008 GMC Sierra 5.3 shorty headers

shorty headers install

[@ajsalazar8185]

Was there any noticeable difference in power, sound, or throttle response?

[@sydneybell7232]

Better throttle response and sound big difference. You could tell there was some power gains.

[@Lou_sassel315]

Gen V? Isn’t that the LT direct injection series engines? Ls engines were 3 and 4 gen

[@sydneybell7232]

It's a gen 4 ls. I will post a new video of it with afm delete and performance cam

[@Upnorthmoto443]

Where’s the video of it done?

[@sydneybell7232]

I will post new video of it done and with afm delete and performance cam

[@vichomar4022]

Was a tuned required?

[@sydneybell7232]

Yes you have to have it tuned. I used mail order tunes in Texas. And they did an amazing job and quick turn around time.

[@amp5646]

where did you get these headers can you post a link please?

[@sydneybell7232]

I will later today

[@amp5646]

@@sydneybell7232 ok thank you