Exhaust bypass
Thread Starter
Advanced
Joined: Aug 2016
Posts: 57
Likes: 5
From: springfield ma
Exhaust bypass
I was watching a video of someone, that did a bypass on stock exhaust.
Has anyone here done that? If so how does it sound? I can't spend alot this year as i'm retiring and moving to Ky. As the wife found a house that is about double the price of what we agreed on, there goes my pay money.
Has anyone here done that? If so how does it sound? I can't spend alot this year as i'm retiring and moving to Ky. As the wife found a house that is about double the price of what we agreed on, there goes my pay money.
Race Director
Joined: Jul 2007
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From: Aiken, SC
St. Jude Donor '13 thru '26
The bypass is one that many do to the titanium Z06 exhaust. I don't recall it being done to the stock exhaust.
Used Z06 systems can be found relatively cheaply.
Used Z06 systems can be found relatively cheaply.
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It will make a little difference in the exhaust note, but a Ti with the bypass or a used aftermarket system would be better. Or you can go with some electric cutouts which will make a big difference in the sound. 
Pro
Joined: Mar 2004
Posts: 607
Likes: 9
From: Sandy Eggo, California
Stock exhaust systems can be found cheap or even free. I paid $500 for my used Z06 titanium system.
Drifting
Joined: Jan 2012
Posts: 1,883
Likes: 76
From: Portland OR
I hope to have the bypass done on my titanium pipes this spring. I love the sound, but they are a little too quiet for the wife. 
O found a fab shop here in town willing to do it, no idea on price yet.
O found a fab shop here in town willing to do it, no idea on price yet.
Le Mans Master
Joined: Feb 2003
Posts: 6,683
Likes: 144
From: Memphis Tennessee
I did this mod with my OE exhaust system, and there is a bit of gain in sound, especially at WOT.
But, I ended up just going all the way with DMH cutouts and have NEVER looked back.
It really depends on what you are actually looking for. If you want really loud, the bypass mod is not really going to meet your standard, and unless you have a "guy" that will take the time to do it right (ie cut a big enough hole in the pipe-turn and then fabricate an oval tube to connect) then this could be done poorly and still $$$
Tell us more about what your outcome is really targeted on.
But, I ended up just going all the way with DMH cutouts and have NEVER looked back.
It really depends on what you are actually looking for. If you want really loud, the bypass mod is not really going to meet your standard, and unless you have a "guy" that will take the time to do it right (ie cut a big enough hole in the pipe-turn and then fabricate an oval tube to connect) then this could be done poorly and still $$$
Tell us more about what your outcome is really targeted on.
Last edited by ALLEGRO; Feb 5, 2018 at 04:56 PM.
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Intermediate
Joined: Jun 2016
Posts: 34
Likes: 2
From: Fairview, OR.
C5 exhaust bypass mod.
Several here have done it. I did it on mine and think it sounds really good, plus it doesn't have any drone. Here's a clip of mine: https://www.youtube.com/watch?v=Ddprnsjq9Fs
Le Mans Master
Joined: Jun 2016
Posts: 5,477
Likes: 4,041
From: Cincinnati, OH
OP, where are you moving to in KY? I'm in NKY/Cincinnati area that I'll sell you a stock C5 bypassed exhaust WITH integrated 2-bolt flanges for cheap...the flanges are right after the swaybat allowing you to remove it without having to get the rear end 20 feet in the air.
It served as a trial approach before I touched my Ti setup but the cost in materials for the Ti exhaust was not worth it.
So the custom stock bypassed exhaust collects dust in the garage.
It served as a trial approach before I touched my Ti setup but the cost in materials for the Ti exhaust was not worth it.
So the custom stock bypassed exhaust collects dust in the garage.
Instructor
Joined: Oct 2016
Posts: 112
Likes: 2
From: Michigan
Here is some clips of mine.
https://www.youtube.com/watch?v=a0L5_zXhN28
https://www.youtube.com/watch?v=Yq2G5YwpDYU
https://www.youtube.com/watch?v=a0L5_zXhN28
https://www.youtube.com/watch?v=Yq2G5YwpDYU
Are you stock other than the bypass? Doesn’t sound stock…
Advanced
Joined: Nov 2020
Posts: 57
Likes: 9
Apologies for necro-ing a dead thread and if I am breaking community rules....but I am interested in this mod as well.
I have a 2004 C5 convertible with 56k miles that has long tube headers, no cats and an X-Pipe with the stock exhaust on it still...and I am looking to make it louder and breath far better for less.
How much can you expect for a muffler shop to quote you for this work? I live in the Austin, TX area and so far the cheapest I have seen is $500....yes, it is obviously crazy.
I have a 2004 C5 convertible with 56k miles that has long tube headers, no cats and an X-Pipe with the stock exhaust on it still...and I am looking to make it louder and breath far better for less.
How much can you expect for a muffler shop to quote you for this work? I live in the Austin, TX area and so far the cheapest I have seen is $500....yes, it is obviously crazy.
Melting Slicks
Joined: Jul 2015
Posts: 2,321
Likes: 234
From: Round Rock Texas
Apologies for necro-ing a dead thread and if I am breaking community rules....but I am interested in this mod as well.
I have a 2004 C5 convertible with 56k miles that has long tube headers, no cats and an X-Pipe with the stock exhaust on it still...and I am looking to make it louder and breath far better for less.
How much can you expect for a muffler shop to quote you for this work? I live in the Austin, TX area and so far the cheapest I have seen is $500....yes, it is obviously crazy.
I have a 2004 C5 convertible with 56k miles that has long tube headers, no cats and an X-Pipe with the stock exhaust on it still...and I am looking to make it louder and breath far better for less.
How much can you expect for a muffler shop to quote you for this work? I live in the Austin, TX area and so far the cheapest I have seen is $500....yes, it is obviously crazy.
Racer
Joined: Oct 2020
Posts: 389
Likes: 170
From: Rhode Island
St. Jude Donor '21
I had the mod done recently on stock exhaust system. Cost me $200. Used 1.5" bypass tube. See the thread below, my videos are there
Go Back CorvetteForum - Chevrolet Corvette Forum Discussion >C5 Corvettes, 1997 - 2004 >C5 General
Reload this Page >
how about this:
https://www.corvetteforum.com/forums...questions.html
Go Back CorvetteForum - Chevrolet Corvette Forum Discussion >C5 Corvettes, 1997 - 2004 >C5 General
Reload this Page >
Exhaust upgrade questions
Well, i can see that i dont know how to link to another threadhow about this:
https://www.corvetteforum.com/forums...questions.html
Last edited by djohn3853; Nov 19, 2020 at 02:56 PM.
Advanced
Joined: Nov 2020
Posts: 57
Likes: 9
Appreciate the response. I am going to get mine done tomorrow at a shop outside of Austin for $150, likely going with the 1.75 inch bypass - in part as I have full long tubes, no cats and an X-Pipe so it should be pretty loud.
Melting Slicks
Joined: Nov 2016
Posts: 2,310
Likes: 1,583
From: East Metro (Twin Cities) Minnesota
St. Jude Donor '21
Burning Brakes
Joined: Oct 2016
Posts: 1,209
Likes: 363
From: Massillon Ohio
I paid my friend (who didn't give me a discount on material nor labor) 250 to do the bypass on my titanium axle back.. I wouldn't pay more than 150 for a shop to do this on a stainless or mild steel exhaust..