Next Mod Suggestions?
 

I am currently looking at doing the next round of mods on my 2018 SS.

Im debating between two choices at the moment:

1. Long tube headers

or

2. Intake manifold and Throttle body.

Whichever i go with, i'll be getting my first tune, as I currently only have the GM CAI and Borla catback.

Any suggestions as to which to do first? Or which to do down the road?

IMO I’d do the headers and tune first. The intake manifold and throttle body can be added later and may not have to retune unless you go with an MSD.

Flex fuel sensor, E85 and tune.

Flex fuel and intake or longtubes and flex fuel.

Makes sense since you need a tune to get the long tubes, and flex fuel and get it all tuned at once.

I'd go with a 95mm TB (not ported), Pray ported intake and an email tune.

I have the MBRP axleback with the Velossa ram air, CAI cold air intake with a ported Mamo TB, Weapon X ported intake.
I been wondering what's next as well.
E85 isn't a option here.
What type HP should I see with the long tube headers and a tune???
Would hi flow cats be a must for more HP?
X pipe???