Exhaust sound

[Vetman]

Borla exhaust has been on my z since I have owned it. I love the sound, especially as rpm pass 2000 to 2500 under light acceleration. Anytime a car is along side me drivers usually take notice when I run through that rpm range. My question is does stock exhaust and after market exhaust have the same or similar menacing sound at that rpm range?

[msorenso]

Just installed a Corsa, no cats, SW headers and it sounds very healthy plus NO DRONE!!!!

[Fully Vetted]

I have the SW's and no cats. Just need to install my corsa's. What catback are you running?

[tf95ZR1]

I have a Borla exhaust and also love the sound.
The problem is the resonator REALLY robs you
of HP. I replaced the resonator with an X-pipe
(and headers) and WOW! Yep, resonance
around 1800 rpm but for me that's OK.

[KILLSHOTS]

Originally Posted by Vetman

Borla exhaust has been on my z since I have owned it. I love the sound, especially as rpm pass 2000 to 2500 under light acceleration. Anytime a car is along side me drivers usually take notice when I run through that rpm range. My question is does stock exhaust and after market exhaust have the same or similar menacing sound at that rpm range?

Stock exhaust makes NO noise whatsoever; far too quiet for these cars, in my opinion. Even a stock exhaust with the resonator removed makes virtually no noise. The aftermarket systems all sound different but all add sound over stock.

[Jim Nolan]

SW's, no cats and Corsa. Sounds good to me.

[Racinfan83]

Originally Posted by Vetman

Borla exhaust has been on my z since I have owned it. I love the sound, especially as rpm pass 2000 to 2500 under light acceleration. Anytime a car is along side me drivers usually take notice when I run through that rpm range. My question is does stock exhaust and after market exhaust have the same or similar menacing sound at that rpm range?

I just installed a Borla catback on mine. It makes a "tinny wraaaa" noise at about 3k rpm. As opposed to the normal "low rumble". Worse when cold, and really short. As in a space of maybe 200-300 rpm. Never hear it otherwise and once it warms up it is lessened.
Is that the noise you are talking about? #wonderingifIcanfixit

[batchman]

Originally Posted by Racinfan83

It makes a "tinny wraaaa" noise at about 3k rpm.

That sounds like a hardware rattle to me, from here anyway. Our car is a Borla with mix of piping (headers, no resonator, kludged cats) but there's nothing tinny about it, inside or out of the car. Does have quite the drone at times from idle to 2400 or so. Of course I've only heard it from outside the car a couple times.

Cheers,
- Jeff

[KILLSHOTS]

Yep, "tinny wraaaa" sounds like a loose heat shield to me. I've had problems with those on both of my Vettes. It will generally only occur at a very narrow and specific RPM range.

[Racinfan83]

Don't know what it could be - there are no heat shields on this one. But Yeah that's kinda what it sounds like. Have to see if I can get a vid of it here in a day or two.. I got under the car and retightened all the bolts thinking that might be it after having driven it several miles but that didn't change it a bit. The only thing I can even imagine I might have done different is that I used a new "old" header collector gasket on the passenger side flange since the stock one that was on there was torn up when I took off the stock one. The gasket I had matched the holes so I figured it was good??