I need some advice!
Thread Starter
Advanced
Joined: Jul 2018
Posts: 81
Likes: 7
I need some advice!
I have a 2016 z51 A8. I'm thinking about get a Kook header and off road xpipe,throttle body(maybe), intake( don't know what best for it) and tune. Any idea how much power i will gain after all this? Thank you 
Racer
Joined: Jun 2013
Posts: 427
Likes: 111
From: Raleigh NC
I was thinking about doing a CAI, polished/ported throttle body, rear cat delete and larger manifold but I am not sure if that is the right combination or what else I am missing. It would be nice to get some expert opinions of a calculator if you will to figure these things out since there are so many conflicting opinions on the forums from every day users.
Ken
Team Owner
Joined: Jan 2007
Posts: 29,063
Likes: 1,839
From: cookeville tennessee
I agree 30 to 40 max all in the tune If I was the OP and will not be doing no more add ons on mods. I would go with the LG step down headers on the car.. Robert
Le Mans Master
Joined: Aug 2001
Posts: 6,071
Likes: 297
From: Savannah GA
Cruise-In IV Veteran
Installing Kooks headers + their 3" x-pipe + HP Tuners and a good tune was an absolutely noticeable seat of pants for me. Course the sound is insane and will make it feel faster 
. Prepare to statch the **** out of your hands and arms getting them on but it's absolutely worth it. Probably $600 labor to put on I would imagine.
. Prepare to statch the **** out of your hands and arms getting them on but it's absolutely worth it. Probably $600 labor to put on I would imagine.
Burning Brakes
Joined: Aug 2018
Posts: 857
Likes: 223
From: San Diego
Former Vendor
Joined: Feb 2012
Posts: 26,512
Likes: 351
From: ST. CHARLES IL
We have been seeing gains of around 30rwhp with long tubes and a tune. Intakes haven't made very much power on these cars but when you combine them with a ported throttle body we usually see another 6-8 rwhp. The MSD intake manifold has been producing solid gains on bolt on cars. Generally 15-20rwhp and even more with a bigger throttle body such as the 103mm. We will have a ported 95MM LT5 option to go with it in the next couple of months which should pair up nicely. A flex fuel tune with some E85 can net you another 20-25rwhp. Now is a good time to buy if you're looking for bolt ons. Stop by our site and use code VETTE. Just about everything is on sale. If you're local we can handle the installs and tunes for you guys as well.
Last edited by JUICED1; Nov 16, 2018 at 10:43 AM.
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