MatthewBrown44

I’m looking to make the exhaust of my 02 Firebird sound louder and deeper than stock but not extremely loud. One of the previous owner had cut a 2 inch hole in the exhaust before the muffler to make it louder and it sounded nice but it was just to loud on the inside of the vehicle, and I had to patch the hole to pass inspection. What are some lower cost mods I can do for under $500 that will achieve a increase of around 10 or so decibels with a deeper tone?

blackbyrd

iTrader: (14)

Magnaflows a good option, you maybe able to find a used cat back for that price if you shop around.

Unfortunately nothing new will be that cheap that's bolt on.

You can but just a muffler and have it welded in and that would be the cheaper option also depending on what a welder in your area charges

Full Power

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No, it didn't " Sound Nice "
You could re-fasion the exhaust piping and include a small or medium frame TURBO-Charger, that would sound NICE without adding a a lot of excess noise.

speedfreak440

iTrader: (9)

Installing bigger tips on your current exhaust will give it a small decibel bump without making much difference inside the vehicle assuming your exhaust terminates at the rear and not under the car.

99Silver6.0

iTrader: (2)

I went Magnaflow on my LT/catless car. Nice and deep but, it really opens up when you lay into it. I had GMMG, Corsa and went back to the Magnaflow. The rasp killed it for me and I was not putting cats on.

.boB

iTrader: (1)

Use a screwdriver and a hammer, punch some holes in the muffler. It will be both deeper, and louder. And, it's free.

99 Black Bird T/A

iTrader: (4)

A 3 inch cut out in the I pipe to the passenger side just before the rear wheel will do the trick and be cheap.

The cut out will also sound a little ghetto if just a basic bolt on car with stock compression & stock cam. Saying that because I liked the sound of open cut out on my 99T/A w/heads, cam headers etc. I don't particularly like the sound of the very same cutout & catback on my bolt on only 02 Z28 with just headers.

wannafbody

iTrader: (2)

Put a cut out on the single pipe before the muffler. Cap it for inspection.

68Formula

Magnaflow or Borla muffler (not sure if they sell a muffler-only). Small dual exhaust outlets will help it sound even deeper. (Everything the same, small outlets slightly reduce dB, but also lower the pitch).

showdog75

iTrader: (8)

Borla pro xs for the win.

pdxmotorhead

I have a flowmaster 70 series on a 5.3 in a jeep with cats its gat a fairly low rumble and no drone.. its 2.5 from manifolds to a Y past the cats in to the muffler at 3" and 3" out the back. YMMV

RevGTO

iTrader: (12)

Magnoflow makes an f-body specific muffler with the stock size inlet and outlets. I'd buy one of those, have it welded in, and call it a day.