hamad_alz

Car's that you smocked with a headers and CAI and how many HP are you making

MerakiAutoworks

Should be at about 460 whp/460 tq

-Josh

konqueror5

437/442 but realize all dynos are different. My gains were 42hp.

Poppacapp

Before my current setup on my 17 GS A8, I had ARH 2" headers w/ catted xpipe, Halltech CAI, Pray Performance ported OEM Intake manifold/TB, Pray performance flex fuel tune and made 489rwhp on e75ish fuel. Ran 10.85@125mph with this setup

Added Pray Performance ported OEM heads and made 508rwhp same dyno 1 week later than the 489rwhp pull similar weather. Ran 10.74@126.9 with that setup.

Have since added a Pray Performance ported MSD IM w/ Nick Williams 103mm TB. No dyno or new times with this setup yet

Have taken out multiple cars at the track, also 2014 GT500 50rolls(only footage is PDR camera view.. no gopro)

Also ran my buddies ZL1 1LE w/ Rotofab cai. It put down 582rwhp and beat him from a 50roll. Here is the video of that run

David Gordon

Why did you go with 2"headers over 1 7/8" headers?

Poppacapp

Because they make more power than 1 7/8. Lot of naysayers etc saying not needed for bolton setup but they work well, and the cars that run them back it up with their track performance.. Some brands have fitment issues(TSP, Ebay brands etc) but my ARH setup fit perfect.. no issues.

David Gordon

Sounds like a set up I can live with on my 2018 GS, wont need the heads but intake, throttlebody looks to make some great power. What throttle body you start with?

Poppacapp

As far as Intake mani and tb goes I wpuld go with the Pray Performance ported oem IM and ported 95mm LT5 TB. The MSD is nice and will offer a tenth or 2 better et.. but if you are not going for personal bests over 15-20hp at the track the oem setup works great. Check out Pray's page on FB. Pray Performance

thrilled

Stock wheel h.p. is around 410-420.Add the headers anc COA might grt you to 440-450 maybe.