Need advice on performance upgrades for the c5 models
Great site love it here very knowledgeable members I appreciate the assistance I have received from everyone

So I am looking to buy a c5 corvette and have a max budget of $12,000 and I have found some very nice clean models with around 90,000 miles and I am knowledgeable about the 1997-2001 models and features...
I am going to buy a 1997-2001 coupe, convertible, or Frc ((really want a Z06 and will try hard but at $12,000 very hard to find for that price)
MY QUETION IS:
Has anyone bought a stock 1997-2001 convertible, coupe, or frc and added a cold air intake, upgraded the throttle body, or installed a headers or exhaust mufflers and if you did can you tell me if it makes a BIG performance difference and does the car feel MUCH faster with these simple bolt on mods? Just wondering if you felt a NOTICEABLE power difference once you installed and drove for the first time after install...
How much hp gain is the following:
Cold air intake?
Throttle body?
Headers and x pipe?
Just performance mufflers without headers?
Just want to know if you had a stock vette and once you installed if you felt WOW this simple bolt on made a BIG power difference on your first test drive with the new performance part...also did anyone dyno after each mod to see added hp numbers
Looking to hear if you did one of these parts listed above and your diving experience after and hp numbers
LOOKING TO HEAR GREAT ADVICE FROM EVERYONE THIS SITE IS AWESOME AND I REALLY AM INTERESTED TO HEAR YOUR PERSONAL EXPERIENCES
do you know how miuch hp you gained from these mods?
Also do you know how much hp each parts adds?
Did you need to tune the car for each part??
I asl because i have a 1400r ninja and i bpught a power comander 5 for it to laptop tune my exhaust and mods for the most hp and the correct tune for my specific exhaust





Intake: ~3-5 hp.
Throttle body: ~2 hp. Don't bother replacing this unless you're getting into HEAVY mods.
Headers and x-pipe: ~ 20 hp.
Exhaust system/muffler: ~5 hp.
A tune would definitely be recommended for this setup, especially with the headers. You could pick up another 10-15 hp from the tune, and the car would drive and idle much more smoothly as well.
Seat of the pants meter felt the difference.
Another great mod was replacing the stock shifter with an MGW
However; addicting, so now I went A&A V3 ysi

Oh by the way, and no disrespect to current owners, but go 2001 and up - more factory improvements and certain repairable computer parts...
The Corvette Museum website used to have good write-ups on every year, I see they changed the site and now only list 2002..hmmm, really liked that feature...anyway here's an old link I found that offers some comparison:
http://www.vettefacts.com/C5/1997.aspx
https://www.corvetteforum.com/forums...r-to-year.html - - - post #6
Last edited by oh1vette; Feb 12, 2016 at 06:20 PM.
Replacing:
spark plugs/wires
fuel filter
fuel pump/sock assembly
all o2 sensors
Cleaning:
MAF/intake/throttle body
Radiator
really made a night and day difference for me in terms of performance, idling, and pedal response. It felt like a whole new car after I completed this work. I'm not saying these will add HP, but for me it made a world of difference.
The only "performance" item I have currently added is the Vararam CAI. I did not get a tune after installing the CAI, and I can still feel a very noticeable difference.
The Best of Corvette for Corvette Enthusiasts
Intake: ~3-5 hp.
Throttle body: ~2 hp. Don't bother replacing this unless you're getting into HEAVY mods.
Headers and x-pipe: ~ 20 hp.
Exhaust system/muffler: ~5 hp.
A tune would definitely be recommended for this setup, especially with the headers. You could pick up another 10-15 hp from the tune, and the car would drive and idle much more smoothly as well.
How much hp can you get from the performance heads and cam? ??














