Best Performance Mod?
Mar 23, 2020 | 10:09 AM
Thread Starter
Intermediate
Joined: Feb 2020
Posts: 40
Likes: 10
From: Northern California
Best Performance Mod?
If you could do one, and only one, performance mod to your stock/base C5, what would it be?
Popular Reply
Drifting
Joined: Sep 2006
Posts: 1,335
Likes: 167
From: Truckee CA
Mar 23, 2020 | 10:25 AM
Drifting
Joined: Sep 2006
Posts: 1,335
Likes: 167
From: Truckee CA
Mar 23, 2020 | 10:51 AM
Burning Brakes
Joined: Dec 2004
Posts: 854
Likes: 70
From: Byrnes Mill MO
If it’s an automatic with 2:73 gears I would swap them out for a set of 3:42.
Mar 23, 2020 | 10:57 AM
Drifting
Joined: Mar 2015
Posts: 1,421
Likes: 302
From: CSRA, SC
Modern high performance summer tires. Everything that made the C5 good in its day is still good EXCEPT tires.
Last edited by oharal; Mar 23, 2020 at 10:57 AM .
Mar 23, 2020 | 11:45 AM
Safety Car
Joined: Dec 2002
Posts: 4,338
Likes: 66
From: Whittier California
Quote:
Originally Posted by
DBS99MagRedCoupe
If it’s an automatic with 2:73 gears I would swap them out for a set of 3:42.
Mar 23, 2020 | 11:47 AM
Melting Slicks
Joined: Nov 2016
Posts: 2,306
Likes: 1,582
From: East Metro (Twin Cities) Minnesota
St. Jude Donor '21
Quote:
Originally Posted by
joew94th
If you could do one, and only one, performance mod to your stock/base C5, what would it be?
It is an expensive one, but my first upgrade to the C5 was this.
Mar 23, 2020 | 11:51 AM
Joined: Jun 2014
Posts: 11,441
Likes: 2,186
From: Buffalo Texas
MGW shifter, the most used !!!!! (although the stock exhaust sucked, and the wheels and tires sucked)
Mar 23, 2020 | 12:30 PM
Acct Suspended APR 2026 by request
Joined: Dec 2010
Posts: 10,367
Likes: 1,272
2020 Corvette of the Year Finalist (performance mods)
C5 of Year Winner (performance mods) 2019
I agree with toys4life, if you want to go fast that is one of the best things you can do... I modded my car quite a bit before I went with a supercharger and was never really impressed, after the blower went on the car was transformed into a completely different animal which is exactly what I was looking for
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Mar 23, 2020 | 12:55 PM
Melting Slicks
Joined: Jan 2009
Posts: 3,181
Likes: 286
From: Puyallup Washington
I agree with the supercharger. I had a 2002 Z06 slightly modified to about 440 HP at the crank. I bought a 1991 that was pretty much stock except for a supercharger. It went from 250 crank HP to 375 HP. But the important thing was it made more HP and torque below 4500 RPM than the Z06 did, which was great for street use.
Mar 23, 2020 | 01:23 PM
Melting Slicks
Joined: Sep 2012
Posts: 2,222
Likes: 798
From: Fort Myers Beach Florida
Without a doubt getting rid of the OEM run flat tires will make it a different car for little money
Mar 23, 2020 | 03:04 PM
Burning Brakes
Joined: Feb 2012
Posts: 1,135
Likes: 258
Mar 23, 2020 | 03:36 PM
Melting Slicks
Joined: Feb 2007
Posts: 3,297
Likes: 398
From: Raleigh Suburbs
Lots of great suggestions - no one mentioned full exhaust (including long tube headers with xpipe) and a tune.
Mar 23, 2020 | 03:39 PM
Le Mans Master
Joined: Feb 2007
Posts: 9,296
Likes: 1,531
From: Oviedo Florida
2024 C5 of the Year Finalist - Modified
2024 C2 of the Year Finalist - Modified
2023 C2 of the Year Finalist - Modified
2021 C2 of the Year Finalist - Modified
2016 C5 of Year Finalist
Quote:
Originally Posted by
Hitman_396
Lots of great suggestions - no one mentioned full exhaust (including long tube headers with xpipe) and a tune.
Probably the best answer considering we don't
know what the OP wants to spend.
Mar 23, 2020 | 04:03 PM
Drifting
Joined: May 2015
Posts: 1,793
Likes: 147
Never been a big fan of it but isn't nitrous considered the best bang for the buck?
Mar 23, 2020 | 04:34 PM
Melting Slicks
Joined: Sep 2007
Posts: 2,182
Likes: 473
From: Rockland County NY
2020 C5 of the Year Finalist - Modified
2016 C5 of the Year Finalist
St. Jude Donor '12, '14
IDK, a car with only one mod wouldn't do anything for me but if performance is your goal I'd have to agree with upgrading the tires first & foremost
Mar 23, 2020 | 05:01 PM
Drifting
Joined: Aug 2014
Posts: 1,402
Likes: 394
From: Virginia
St. Jude Donor '18
Of all the things I did to my C5, the C6 Z06 sway bars, shocks, and lowering it with Zip Bolts was the biggest seat of the pants and fun factor for the dollar.
Mar 23, 2020 | 05:32 PM
Melting Slicks
Joined: Oct 2006
Posts: 2,652
Likes: 629
From: Rural North West NV
Quote:
Originally Posted by
jpm995
Never been a big fan of it but isn't nitrous considered the best bang for the buck?
Maybe for drag racing and then as long as you don't blow up your motor. I've never been a big bottle fan and would rather do mods that can be used more often or more continuously.
Mar 23, 2020 | 05:38 PM
Acct Suspended APR 2026 by request
Joined: Dec 2010
Posts: 10,367
Likes: 1,272
2020 Corvette of the Year Finalist (performance mods)
C5 of Year Winner (performance mods) 2019
Quote:
Originally Posted by
ChiliPepperGarage
Maybe for drag racing and then as long as you don't blow up your motor .
well he did say "bang" for your buck
Mar 23, 2020 | 09:01 PM
Drifting
Joined: May 2007
Posts: 1,552
Likes: 324
From: Mid Ohio
First off... who in their right mind would buy a C5 and then limit themselves to only "one mod"?
Either get a part time job... tell your mom you want your man card back... or take back the pants from your wife!
Now that your a man again.., you can afford five mods on your base C5 w/auto:
- Full exhaust
- CIA
- 3.73 rear gear
- Tune
- Tires
Mar 24, 2020 | 12:48 AM
Racer
Joined: Dec 2017
Posts: 331
Likes: 74
From: Florida
Assuming it has 3.15 gearing:
LS3 or LS7
More realistically? A cam or 243 heads.
While not performance in terms of HP, the most money-to-fun ratio would have been my thicker sway bars
Last edited by 02torchred; Mar 24, 2020 at 12:49 AM .