C7 General Discussion General C7 Corvette Discussion not covered in Tech
Sponsored by:
Sponsored by:

Complete Plenum vs Overlay

Old Aug 13, 2023 | 01:13 PM
  #1  
F15DOC's Avatar
F15DOC
Thread Starter
Intermediate
 
Joined: Aug 2018
Posts: 35
Likes: 21
From: Washington State
Default Complete Plenum vs Overlay

Hi fellow enthusiasts! Time to do a little to the engine bay to dress it up a bit. I have been looking at all the companies that provide or paint parts and overlays.
So many decisions, so many possibilities, gotta love customization.
I am looking at various options for my Grand Sport... I have found a few plenum overlays in waving american flags and carbon fiber look that are appealing.
Do the overlays look tacky and cheap vs the entire plenum?
Anyone have any comparison photos of those?
Thanks for the help in making this decision!
I am currently leaning towards the combo of carbon fiber plenum (first photo) with stainless steel fuel rails (second photo):


Reply
Old Aug 13, 2023 | 01:19 PM
  #2  
F15DOC's Avatar
F15DOC
Thread Starter
Intermediate
 
Joined: Aug 2018
Posts: 35
Likes: 21
From: Washington State
Default

Rather than putting the flag on the plenum, the other option is to get a really large waving flag for the hood liner...
Something like this only with Grand Sport or USAF instead of Z06...


Reply
Old Aug 14, 2023 | 08:34 AM
  #3  
stevettec7's Avatar
stevettec7
Melting Slicks
Veteran: Navy
10 Year Member
Loved
Top Answer: 3
 
Joined: Jan 2015
Posts: 2,106
Likes: 951
From: Fleming Island Florida
Default

I personally think the plenum overlay looks fine. It’s been looking good for years now. Got it from RPI. My airbrushed hood liner is a bit faded, but still holding up.



Reply
Old Aug 14, 2023 | 11:56 AM
  #4  
Mayor111's Avatar
Mayor111
Melting Slicks
Liked
Loved
Top Answer: 1
Top Answer: 5
 
Joined: Oct 2016
Posts: 3,340
Likes: 2,084
From: Lehigh Valley PA
Default

You could get your engine parts airbrushed - to me this looks better than any tape on chrome pieces...




Reply
Old Aug 14, 2023 | 12:57 PM
  #5  
Vetteman Jack's Avatar
Vetteman Jack
Administrator
Supporting Lifetime
Veteran: Navy
St. Jude 20 Year Donor
25 Year Member
Veteran: Reserves
 
Joined: Mar 2001
Posts: 368,602
Likes: 24,860
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 '26
NCM Sinkhole Donor
CI 5, 8 & 11 Veteran
Default

When I was looking for engine bay dress up items, I went with the replacement plenum piece rather than just an overlay. From the pics, it just looked better to me.
Reply
Old Aug 14, 2023 | 08:30 PM
  #6  
F15DOC's Avatar
F15DOC
Thread Starter
Intermediate
 
Joined: Aug 2018
Posts: 35
Likes: 21
From: Washington State
Default

I think the overlays just don't look that good, so yep, I think a new plenum is better
Reply
Old Aug 14, 2023 | 09:38 PM
  #7  
BAT's Avatar
BAT
Le Mans Master
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Oct 2005
Posts: 8,186
Likes: 1,792
From: Stafford Springs CT
2026 Corvette of the Year Finalist - Modified
2025 C7 of the Year Winner - Modified
2024 C7 of the Year Finalist - Modified
2023 C7 of the Year Finalist - Modified
2022 C7 of the Year Finalist - Modified
2021 C7 of the Year FinalistAX - Modified
Default

I went replacement only because I found it used in the FS section here. I'm pretty happy too since I do like it more than the overlay pieces. I also opted to paint the fuel rail covers and lower heat extractor vent, as well as having a custom air brushing on my hood liner



Reply
Old Aug 15, 2023 | 12:16 AM
  #8  
F15DOC's Avatar
F15DOC
Thread Starter
Intermediate
 
Joined: Aug 2018
Posts: 35
Likes: 21
From: Washington State
Default

That looks great, really like that setup, especially the red lower fuel rail covers...
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

2027 Chevrolet Silverado 1500 First Look: Everything You NEED to Know!

 Michael S. Palmer
story-1

5 Best & 5 Worst Corvette Daily Drivers

 Joe Kucinski
story-2

The Headlights of Every Corvette Generation Explained

 Joe Kucinski
story-3

5 Best & 5 Most Overrated Corvette Track Packages of All Time!

 Joe Kucinski
story-4

Every 2027 Corvette Engine Explained

 Joe Kucinski
story-5

Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

 Verdad Gallardo
story-6

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-7

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-8

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-9

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
Old Aug 15, 2023 | 06:04 AM
  #9  
Edward Ackley's Avatar
Edward Ackley
Racer
 
Joined: Apr 2019
Posts: 300
Likes: 83
Default

this is mine
Reply
Old Aug 15, 2023 | 07:50 AM
  #10  
BWF07's Avatar
BWF07
Le Mans Master
15 Year Member
Liked
Loved
Top Answer: 1
 
Joined: Sep 2006
Posts: 9,602
Likes: 965
From: Palm Harbor not far from Sebring Florida
St. Jude Donor '11
Oldtimer
Default

Technically both options ore overlays. The stock gray unit is just a piece that covers the actual intake plenum held in place by 4 bolts. Both look fime, but if you go with just the plenum piece and then add the fuel/coils covers I think that looks a little better and a little more thought and individualized.
I just finished mine and I took the plunem off painted it gloss black, added the stainless steel from American Car Craft, left the upper covers stock and removed and painted the lowed covers to match the exterior color. I also added the polished stainless pieces from American Car Craft.

Reply
Old Aug 15, 2023 | 11:55 AM
  #11  
RPIDON's Avatar
RPIDON
Platinum Supporting Vendor
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2013
Posts: 19,329
Likes: 466
Default

Hi All .. incase anyone is interested to buy from us please use BIGSALE23 code in rpidesigns.com
Reply
Old Aug 16, 2023 | 09:34 AM
  #12  
F15DOC's Avatar
F15DOC
Thread Starter
Intermediate
 
Joined: Aug 2018
Posts: 35
Likes: 21
From: Washington State
Default

Originally Posted by RPIDON
Hi All .. incase anyone is interested to buy from us please use BIGSALE23 code in rpidesigns.com
I looked in the past and you had a custom plenum that had an american flag, does RPI still have that? And you had upper fuel rail covers for Grand Sport painted with rally stripes to match the vehicle color... but I can't find those options on your website now.
Reply
Old Aug 16, 2023 | 09:39 AM
  #13  
Raidercop's Avatar
Raidercop
Pro
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Aug 2021
Posts: 501
Likes: 402
From: Maryland
2023 C7 of the Year Finalist - Unmodified
Default

I have the chrome overlays. Love them! Easy install

Reply
Old Aug 16, 2023 | 10:23 AM
  #14  
F15DOC's Avatar
F15DOC
Thread Starter
Intermediate
 
Joined: Aug 2018
Posts: 35
Likes: 21
From: Washington State
Default

Originally Posted by Raidercop
I have the chrome overlays. Love them! Easy install
As an "overlay" how does that work/apply? Do you leave your existing plenum? Clean it and stick on adhesive parts? Does it sit on top of the existing plenum? rattle?
Its not clear how an overlay actually is installed.
Reply
Old Aug 16, 2023 | 10:32 AM
  #15  
Raidercop's Avatar
Raidercop
Pro
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Aug 2021
Posts: 501
Likes: 402
From: Maryland
2023 C7 of the Year Finalist - Unmodified
Default

Originally Posted by F15DOC
As an "overlay" how does that work/apply? Do you leave your existing plenum? Clean it and stick on adhesive parts? Does it sit on top of the existing plenum? rattle?
Its not clear how an overlay actually is installed.
yes, that's exactly what you do. The kit comes with cleaning stuff. Just clean them, then lay the pieces down in the pattern and peel the 3M tape off and press them down. Just take your time. Pretty easy. They've not moved and I put them on about 1.5 yrs ago.
Reply
Old Aug 18, 2023 | 03:33 AM
  #16  
RPIDON's Avatar
RPIDON
Platinum Supporting Vendor
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2013
Posts: 19,329
Likes: 466
Default

Originally Posted by F15DOC
I looked in the past and you had a custom plenum that had an american flag, does RPI still have that? And you had upper fuel rail covers for Grand Sport painted with rally stripes to match the vehicle color... but I can't find those options on your website now.
Hi sir .. We don’t don’t do those anymore
Reply
Old Sep 2, 2023 | 01:39 PM
  #17  
Black Rose-MD's Avatar
Black Rose-MD
Instructor
10 Year Member
Photogenic
Liked
Loved
 
Joined: Feb 2016
Posts: 190
Likes: 184
From: MD
Default Had airbrushed...

Just installed plenum/rails and air dam this morning, took a little over an hour. '17 GS Black Rose.
Had it done to my prev '14 Crystal Red Z51 until I sold the car..(I put the original parts back on).
Looking to get the underliner airbrushed but haven't had luck in finding an artist in my area (DMV- DC/Northern VA)... any recommended artist out there?
My preference is airbrush vs an overlay....




Reply

Get notified of new replies

To Complete Plenum vs Overlay



Thread Tools
Search this Thread

All times are GMT -4. The time now is 07:04 PM.

story-0
2027 Chevrolet Silverado 1500 First Look: Everything You NEED to Know!

Slideshow: Is the 2027 Chevrolet Silverado 1500 the best Silverado yet?

By Michael S. Palmer | 2026-06-16 08:01:12


VIEW MORE
story-1
5 Best & 5 Worst Corvette Daily Drivers

Slideshow: 5 best and 5 worst Corvette daily drivers

By Joe Kucinski | 2026-06-15 10:32:13


VIEW MORE
story-2
The Headlights of Every Corvette Generation Explained

Slideshow: The headlights of every Corvette generation explained

By Joe Kucinski | 2026-06-15 10:17:14


VIEW MORE
story-3
5 Best & 5 Most Overrated Corvette Track Packages of All Time!

Slideshow: The 5 best and 5 most overrated Corvette track packages ever.

By Joe Kucinski | 2026-06-09 12:46:45


VIEW MORE
story-4
Every 2027 Corvette Engine Explained

Slideshow: Every 2027 Corvette engine explained

By Joe Kucinski | 2026-06-09 12:16:31


VIEW MORE
story-5
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

Slideshow: A Jaguar designer's personal project imagines what a modern front-engined Corvette might look like if Chevrolet revisited the golden age of the Stingray.

By Verdad Gallardo | 2026-06-08 19:53:43


VIEW MORE
story-6
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-7
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-8
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-9
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE