Exhaust
Racer
Joined: Sep 2013
Posts: 397
Likes: 33
From: Mississauga Ontario
Drone is super subjective, BTW.
I have Bullets, and drone does not bother me whatsoever. If it gets a little "droney", I have three other gears to put it into. I think I have done that maybe a half dozen times over the last eleven years. The rest of the time they sound great!
I have Bullets, and drone does not bother me whatsoever. If it gets a little "droney", I have three other gears to put it into. I think I have done that maybe a half dozen times over the last eleven years. The rest of the time they sound great!
Le Mans Master
Joined: Oct 2014
Posts: 8,673
Likes: 2,727
From: Atlanta GA
Sounds like someone opened the gates of hell
Dave
Last edited by Dcasole; Aug 1, 2016 at 09:24 PM.
Racer
Joined: Apr 2015
Posts: 470
Likes: 129
From: San Diego CA
I have Billy Boat Fusion and I absolutely love it. It sounds much throatier than stock, with a nice burble on decel. I didn't think I would ever use the quieter mode, but it takes out much of the drone at cruise speeds.
IIRC, I paid about 1400 new from Maryland Speed. Their prices seem to be consistently lower than the others, even the factory.
IIRC, I paid about 1400 new from Maryland Speed. Their prices seem to be consistently lower than the others, even the factory.
Advanced
Joined: Jan 2014
Posts: 66
Likes: 15
I have B&B PRT. If you're not going with headers and a tune, then your choice should probably come down to sound only. I suggest you just talk to people, strangers too, when you see/hear their setup. I made my choice after attending a Corvette car show by a local club. I merely walked around, asked about their set up, had them fire up the car and listened. I found the PRTs for under $1k on the web, and paid a shop $125 to install them. Good Luck!
Safety Car
Joined: Sep 2012
Posts: 3,716
Likes: 15
From: Tri Cities TN
The NPP optional 2 1/2" exhaust are the same mufflers for base and wide body. However, starting in 2009 the mid X pipe and axle over pipe (with NPP mufflers) dimensions changed, so a 2008 mid X pipe will not line up with a 2009 axle/muffler pipe.
If the OP purchased a 2009+ NPP mufflers, he would also need the 2009+ mid X pipe. Keep in mind, starting in 2012 the mid X pipe added two small cats.
Least expensive route is for the OP's 06 is to find a set of 2008 NPP's and purchase the kit to make the valves functional.
If the OP purchased a 2009+ NPP mufflers, he would also need the 2009+ mid X pipe. Keep in mind, starting in 2012 the mid X pipe added two small cats.
Least expensive route is for the OP's 06 is to find a set of 2008 NPP's and purchase the kit to make the valves functional.
Pro
Joined: Nov 2011
Posts: 549
Likes: 10
From: Tomball Texas
NPP if i remember correctly is 2-1/2 inch. Z-06 and ZR-1 are 3 inch. Does that sound right?
I just installed the npp on my 2011 base. Found a pair from a 13' on craigslist for $200. Absolutely love them. I do get the burble on deceleration and I llike it. Havent order the nnp in a box yet but I will. There is some drone on the highway that I wont always want on longer trips.
If you can find an affordable set I recommend them. Like others said, you get the sound when you want it and off when you dont.
I just installed the npp on my 2011 base. Found a pair from a 13' on craigslist for $200. Absolutely love them. I do get the burble on deceleration and I llike it. Havent order the nnp in a box yet but I will. There is some drone on the highway that I wont always want on longer trips.
If you can find an affordable set I recommend them. Like others said, you get the sound when you want it and off when you dont.
Safety Car
Joined: Sep 2012
Posts: 3,716
Likes: 15
From: Tri Cities TN
NPP if i remember correctly is 2-1/2 inch. Z-06 and ZR-1 are 3 inch. Does that sound right?
I just installed the npp on my 2011 base. Found a pair from a 13' on craigslist for $200. Absolutely love them. I do get the burble on deceleration and I llike it. Havent order the nnp in a box yet but I will. There is some drone on the highway that I wont always want on longer trips.
If you can find an affordable set I recommend them. Like others said, you get the sound when you want it and off when you dont.
I just installed the npp on my 2011 base. Found a pair from a 13' on craigslist for $200. Absolutely love them. I do get the burble on deceleration and I llike it. Havent order the nnp in a box yet but I will. There is some drone on the highway that I wont always want on longer trips.
If you can find an affordable set I recommend them. Like others said, you get the sound when you want it and off when you dont.
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
Le Mans Master
Joined: Oct 2014
Posts: 8,673
Likes: 2,727
From: Atlanta GA
Le Mans Master
Joined: Oct 2014
Posts: 8,673
Likes: 2,727
From: Atlanta GA
NPP if i remember correctly is 2-1/2 inch. Z-06 and ZR-1 are 3 inch. Does that sound right?
I just installed the npp on my 2011 base. Found a pair from a 13' on craigslist for $200. Absolutely love them. I do get the burble on deceleration and I llike it. Havent order the nnp in a box yet but I will. There is some drone on the highway that I wont always want on longer trips.
If you can find an affordable set I recommend them. Like others said, you get the sound when you want it and off when you dont.
I just installed the npp on my 2011 base. Found a pair from a 13' on craigslist for $200. Absolutely love them. I do get the burble on deceleration and I llike it. Havent order the nnp in a box yet but I will. There is some drone on the highway that I wont always want on longer trips.
If you can find an affordable set I recommend them. Like others said, you get the sound when you want it and off when you dont.
Love that decel burble , I find myself downshifting just to hear it.
Safety Car
Joined: Nov 2007
Posts: 4,435
Likes: 874
From: Bay Area CA
Please correct me if I am wrong. But it is my understanding that all the NPP mufflers neck down to 2 1//2 inch at the inlet. That includes Z06 and ZR1. So, if you cut the over the axle pipe from the NPP muffler and use your existing over the axle pipe, you can weld the NPP muffler to your 2 1/2 " pipe.
BTW: What are the gains from 2 1/2" NPP exhaust to a full ZR1/Z06 3" exhaust tuned? 28 RWHP and 22 ft. lbs torque on S/C LS3. HP and torque improved throughout the entire power band with most of the gains above 4500 rpm.
Last edited by Mike's LS3; Aug 3, 2016 at 12:07 PM.
Cruising
Joined: Apr 2016
Posts: 12
Likes: 1
Had a local exhaust guy remove the mufflers, put in 2.5" pipes and had him put on some flowmaster exhaust tips. Cheap and the car sounds great, not a long term solution because one day I'd like to get a full on exhaust for it. Here's a youtube clip of mine.
Instructor
Joined: May 2016
Posts: 245
Likes: 41
From: Crystal River Florida
That sounds like a great idea! Do you have any pics of your mod? Do you have an exit pipe welded on, or just exit under the car? Thanks
Pro
Joined: Aug 2015
Posts: 632
Likes: 69
From: GA
