Both shops kits are excellent and can not go wrong with 
superchargers
Premium Supporting Vendor
Joined: Jan 2001
Posts: 17,681
Likes: 11
From: Central Jersey
Cruise-In II Veteran
Cruise-In III Veteran
Cruise-In V Veteran
I might be a bit bias but we make our own kit. Feel free to call me if you have any questions. 
__________________
Home of the Fastest Supercharged C5 8.4 @ 158mph
Home of the Fastest Supercharged IRS GTO 9.0@ 155
Home of the Fastest Supercharged C6 9.7 @ 143mph
Proud Sponsor of the ECS Corvette Challenge
http://www.corvettechallenge.info
609-752-0321
Home of the Fastest Supercharged C5 8.4 @ 158mph
Home of the Fastest Supercharged IRS GTO 9.0@ 155
Home of the Fastest Supercharged C6 9.7 @ 143mph
Proud Sponsor of the ECS Corvette Challenge
http://www.corvettechallenge.info
609-752-0321
Administrator
Joined: Mar 2001
Posts: 368,320
Likes: 24,777
From: In a parallel universe. Currently own 2014 Stingray Coupe.
C7 of the Year - Modified Finalist 2021
MO Events Coordinator
St. Jude Co-Organizer
St. Jude Donor '03 thru '25
NCM Sinkhole Donor
CI 5, 8 & 11 Veteran
Check out the Magnuson and ATI Procharger too.
Racer
Joined: Aug 2002
Posts: 369
Likes: 11
From: NV
Just had Andy and his crew put one in my 2001 (6 months ago). The minor issues that have arisen have been quickly and happily explained over the phone (or email). The work is top notch. Andy is friendly, very knowledgeable and quick to respond and never makes fun of my idiot streak when I break things
he had nothing to do with. Great shop too, very clean and welcoming. Can't go wrong with A and A.
he had nothing to do with. Great shop too, very clean and welcoming. Can't go wrong with A and A.
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Melting Slicks
Joined: Oct 2006
Posts: 2,228
Likes: 5
From: Gainesville Georgia
The newest design Is alot more reliable & a much better setup than the older one. I have the older Procharger with no problems luckily. I still wish I had the newer one though. Best of luck 
Melting Slicks
Joined: Jun 2004
Posts: 3,439
Likes: 6
From: Newark, DE
St. Jude Donor '06
There are many good solutions for the C5 - Procharger, Magnacharger, Paxton, Kenne Bell, Vortech. To properly answer this question I think you first need to define your needs/wants (e.g., power off-the-line or boost later in the rpm curve ... 500rwhp or 800 rwhp) and your car (e.g., high compression vs. low compression, stock vs. modded vs. planned mods). Then ask the question in C5 FI.
Team Owner
Joined: Jan 2006
Posts: 20,800
Likes: 59
From: Tellico Village, Tn
St. Jude Donor '08
I used A&A, had some minor problems, but did a clutch (highly recommend) and 402 install at the same time. Initial problems (sensors) taken care of. No more problems runs like a bat out of hell.
Suggest you check out A&A
Suggest you check out A&A
Le Mans Master
Joined: Jun 2004
Posts: 7,155
Likes: 154
From: The Arid Sunny Desert
Call The Vette Doctors at (631) 841-0779 and they will take good care of you. They have a ton of satisfied customers who travel from out of state to their shop.
Instructor
Joined: Nov 2005
Posts: 143
Likes: 0
From: Staten Island New York
No doubt that there are many competant tuners out there but The Vette Doctors are hands down the best tuner, in my opinion. Their Procharger prescription should cure your need for speed.
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Life Time NCM #2196
Joined: Sep 2004
Posts: 82,592
Likes: 1,710
From: Converse TX
I really like my A&A setup and my buddy likes his ECS setup and I know both of these vendors stand behind there products, I have also purchased many other items from both of these shops and no issues with them
