Cartuning GXP/LS4 Turbo Update
Staging Lane
Joined: Oct 2014
Posts: 94
Likes: 0
From: NEPA
Boost is boost does not matter what size turbo. How much boost you run is your choice but if anything boost is generally going to murder your trans before nitrous will. Boost more of a constant the nos is since your not spraying the majority of your driving.
I just recently had the car tuning turbo kit installed on my 07 imp SS. Go to Hargett Automotive performance on Facebook go to videos and you could see it on the dyno. It's under this is not your grandma's Impala
Staging Lane
Joined: Dec 2010
Posts: 78
Likes: 6
Registered User
Joined: Jan 2017
Posts: 1
Likes: 0
Is car tuning performance out of business I have been messaging these people for sooooooooo long waiting on a response but nothing i called gave me dial tone called local number nothing happened man this is retarded i want to freakin buy the kit but im not throwin money to no one can you answer me that are they out of business????????????
TECH Fanatic
Joined: Jun 2007
Posts: 1,316
Likes: 3
From: Dolla$ , TX
I have been messaging these people for sooooooooo long waiting on a response but nothing i called gave me dial tone called local number nothing happened man this is retarded i want to freakin buy the kit but im not throwin money to no one can you answer me that are they out of business????????????
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Verdad Gallardo Man ive been trying to contact kevin or anyone at cartuning for that matter ever since i purchased my kit early last year.they will not respond to phone calls or emails.first off i ordered kit feb.16 an after they shipped it to a previous customer 3 months later he refused package "thank god" an a week later it arrived.dont get me wrong i love this kit, I just don't understand what's going on with Kevin and the guys at cartuning. Also if anybody has the 3-inch upgraded path kit 3-inch electronic exhaust cutout and rear manifold for sale let me know, I'm very interested and buying!!!!! If any of you guys have any questions about the cartuning turbo kit you can send me a personal message and I'll be glad to help you
Teching In
Joined: Dec 2021
Posts: 7
Likes: 0
I have the Turbo kit on my GXP now. 5lbs boost right now. I can tell you for sure the N/A LS4 will never gain or stay even at any point from a complete stop position. I put Michelin AS4 sport on the front and they are glue on the road. Also,the N/A LS4 will not let you put the pedal to the floor right off the rip. The tune from the kit removes that governor. The pull from the turbo is so constant...especially in second and third. The short of it is the stock GXP is left in the exhaust from the turbo GXP.
Kevin is tuning me up in a couple weeks to up the boost to 10 or 12 pounds of boost. The only comp on the road from N/A motor has a wicked high price tag. The C8 vette had trouble and i am running 5 lbs of boost. He was pissed!!
