This is my experience as well. My magnaflow system drones quite a bit.
Exhaust Upgrades
Thread Starter
Cruising
Joined: Aug 2016
Posts: 10
Likes: 1
From: Howard Beach New York
Exhaust Upgrades
I installed muffler delete pipes on my 94, it sounds OK but the drone sucks, so I want to install a MagnaFlow 12468 performance muffler with a tru-X core in place of the resinator which should get rid of the drone. My question is 2.5" or 3" pipes ? not sure which to order.
Instructor
Joined: Sep 2014
Posts: 237
Likes: 11
From: Houston Texas
If I where you I would use the 2.5 but i don't think that muffler will get rid of drone, I have it with two individual glasspacks right behind it and still have drone. I would go with a chambered muffler to lose drone.
Last edited by TurbineSurgine; Aug 29, 2016 at 12:17 AM.
Melting Slicks
Joined: Dec 2008
Posts: 2,772
Likes: 64
From: Mystic CT
I did a check for stock at NAPA and went to Walker exhaust and no muffler listed either place for my '91.
Where would you buy one if you wanted one?
Last edited by ddahlgren; Aug 29, 2016 at 11:01 AM.
Melting Slicks
Joined: Mar 2016
Posts: 2,778
Likes: 580
From: Langley BC
I just got new exhaust for my 88' because it had terrible drone due to having hooker muffler put on by the PO. I used dual 2.5 pipes my exhaust shop bent to fit with an X-pipe (from summit) and stock mufflers. It still has a nice rumble at idle and sounds good when you get on it, But is very quiet at highway cruising speeds. I'm very happy with the sound.
Just a note, I got the stock replacement mufflers (for a 91') from Corvette Central and my exhaust guy said he a little bit of trouble because the pipes that were attached to the muffler were not bent correctly, but after he re-bent the piping a bit it all worked out.
Just a note, I got the stock replacement mufflers (for a 91') from Corvette Central and my exhaust guy said he a little bit of trouble because the pipes that were attached to the muffler were not bent correctly, but after he re-bent the piping a bit it all worked out.
Thread Starter
Cruising
Joined: Aug 2016
Posts: 10
Likes: 1
From: Howard Beach New York
SO you are using that exact muffler with the Tru-X pipe built in and you still have drone ? Well that sucks I guess I will be trying something else then.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Melting Slicks
Joined: Mar 2016
Posts: 2,778
Likes: 580
From: Langley BC
The mufflers were sold by Corvette Central and were stock replacement ones for a 1991 Corvette (dual outlets). they were $198 I think, and the X-pipe from summit racing was $34.
They sound great with dual 2.5in and an x-pipe.
Just be aware as I said earlier that the pipes that come attached to the mufflers will have to be massaged a little bit in order to work as they are not bent correctly.
They sound great with dual 2.5in and an x-pipe.
Just be aware as I said earlier that the pipes that come attached to the mufflers will have to be massaged a little bit in order to work as they are not bent correctly.
