oracle646

Just curious what a basic thing for a 87 IROC TPI, could help get me a basic low rumble I have heard of of the Audio clips and I like where it is a low almost growl instead of liek a gurgle. I don't know much about this stuff but looking for something like Glass Packs maybe I Don't know, I am just starting to mod this car, just want something around a hundered dollars or so let me know please Thanks SO much!

Any other tips you would like to throw at me please do!

SDalt404

iTrader: (4)

http://mufflex-performance.com/catal...b101760b00a3d8

That exhaust is the exhaust I am about to get.

oracle646

Do u know what you can do for less money than that? It looks real nice of course just as of RIGHT now just not looking that crazy... I mean how much is glass packs?

slow_90firebird

3.5" or 4" exhaust would be way overkill. 3" is perfect.

Look into the cheaper catback systems. Like flowmaster and hooker ect. Summit racing has them pretty cheap, with cheap shipping.

Also, jegs has some Jegs brand systems that are really cheap, but kinda lo-qualty. Just whatever you get, make sure you get a 3" mandrel bent catback.

Also, you need to figure out what kind of catalytic convertor / flange you have. Most aftermarket catbacks will say what engine code from the vin # they work with.

SDalt404

iTrader: (4)

just cut your muffler off or go to a local exhaust shop and get them to put in a flowmaster.

oracle646

How much might a decent flowmaster cost? I heard some 80's dont have catalytic coverters is this true? I have an 87.

I am so new at this stuff might sound dumb. But were we talkin about the glass packs side of things or just the muffler part?

And is catback a brand or an actual part....See I really just got into this like a month ago. I more a computer guy on knowledge. Could you break down and exhaust system for me? And maybe some links to some of the product? Thanks so so so much means a lot to help me out like this.Tyler

SDalt404

iTrader: (4)

at catback is the way to go. that consists of all the piping from the cat to the tail pipe. Get one that is madrel bent.

If money is a concern the order a muffler of your choice and take it to an exhaust shop to weld in.

oracle646

So how much does a complete nice little catback system run for nothing crazy but nothing low. Something you might want. And what does madrel bent do for me?

Orr89RocZ

iTrader: (20)

what do you have a 305 or 350?

My stock L98 turned into the sound you here in my sig with a Powerstick Chambered tube from Classic Chambered.

oracle646

305

slow_90firebird

Something like these:

http://store.summitracing.com/partde...5&autoview=sku

http://store.summitracing.com/partde...5&autoview=sku

I believe the 87 TPI cars got the 3" single cat with flare flange - so that is what I picked the catbacks for. You should look under your car before you order anything, because if you have the 2.25" cat, you are gonna need a different system.

you can search google video, and youtube, for clips of different exhaust setups. But some cars that have cams and other mods will sound better than yours will. If the idle sounds "lumpy" or like is is gonna stall, that means it has an aftermarket cam.

oracle646

Do you think a nice glass pack set up for now would give me a good rumble? And if I did change out the whole exhaust system would the glass packs just fit right back kind of the same, i mean not having to change them out...(liek I said I am new lol)

oracle646

So those links you just gave me I assume that is for a whole exhaust kit correct? Just want to understand what I am seeing and reading, like I mentioend I am new try to grasp all of this new stuff.

But I assume the flowmaster is a better one because of price?

SDalt404

iTrader: (4)

glass packs.. lol... grab you up sum them

Nater2491

iTrader: (1)

i would suggest just buying the muffler, it will be cheap and sound good. maybe while your at it empty the catalytic converter of all its catalyst.

slow_90firebird

Yeah, but on a stock motor, an aftermarket muffler will hardly be louder than sotck. Plus, a 3" catback will give you a few more HP and better gas milage.

The hooker is actually a better system, not quite as loud, bit a better muffler. The flowmaster's price just went up over $100 recently for no reason, but if you really want the flowmaster, jegs has it cheaper.

As for the glasspacks, thats usually something you do when you have true duals, with longtube headers. They are cheap, and have a "trailer park" reputation around here. I dont mind them much, but if thats what you want, an exhaust shop probably wouldnt charge much to run you a 3" catback with a cherry bomb in it.

oracle646

so those links you gave me for the flow master and the hooker system, is that the whole cat back system right there? Cause from what you are saying the hooker looks like the way to go. And I don't need to change anything else right? Just swap it out part for part up to the Manifold ( I assume thats where the catback leads up too?).

And what kind of horse power and gas mileage increase are we talking estimate? Cause who doesn't want that also.

slow_90firebird

Well, I cant give you any numbers on HP and gas milage, but you wont see or feel much from just a catback. The good thing is though, if you later ever want to upgrade your exhaust to having headers and a y-pipe, and a high-flow cat, you can not have to worry about crappy stock exhaust hampering the flow. Also, the hooker is known to flow better than the flowmaster, but it wont be real loud. You will probably notice a pretty good volume increase when you really accelerate, but just cruising it will only be a little louder than stock (which is good if the cops around your area are strict).

On these cars, the catalytic convertor is right under the passenger side of the car, kind of under the passenger seat (that is why there is a "hump" in the floor there). Any catback system starts at the backside of the catalytic convertor, and replaces all the exhaust pipe under the floor, goes over the rear axle, and into the passenger side of the muffler. The muffler, unlike most cars, sits transverse, or "crossflow" in camaros and firebirds. It has a tailpipe and exhaust tip that comes out of either end of the muffler, and out under the back bumper.

slow_90firebird

Here is a sound clip of the hooker:
http://www.youtube.com/watch?v=g06v9VGZeCg

Here is an idea of what a flowmaster sounds like:
http://www.youtube.com/watch?v=HhbJweFgG9Y

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Also, even though summit and jegs raised the flowmaster system over $100 more this week, it can still be had for a reasonable price.

Here is one with free shipping
http://www.lmperformance.com/16306/2.html

spurgeon76

**DELETE**

luvofjah

iTrader: (2)

I have Hooker 2055 headers and y pipe and a Flowmaster 1 in 1 out.
My neighbor has headers and a Magnaflow muffler 1 in 1 out.
Both have 305 TPI's and his sounds deeper and nice than mine
Next round, I'll get Magnaflow

Hawgtied

I have painted a couple of vehicles inside a regular garage that was converted to a make shift spray booth by tacking plastic over EVERYTHING and rolled cardboard on the floor. For the garage door, I built a frame out of 2x4s and covered the entire opening in plastic. Installed a couple of cheap box fans with AC filters on them and went to town spraying. Both jobs came out very clean. That being said, when it comes to painting, the devil is in the details. Prep work is about 90% of the job. There's a ton of info on this very subject both here on this forum and on the interweb. FWIW I used summit racing products with great results.

Good luck with the spraying and show us some photos along the way

QwkTrip

iTrader: (22)

All you need is a different muffler to get some rumble. Magnaflow probably has the sound you're looking for but is not in your budget. Sometimes people are selling fairly new exhaust systems or changing mufflers. Maybe watch the classifieds and see if you can pick up something slightly used that is nicer than you would be able to afford new.

Jenkins

I had an Aerochamber muffler on an otherwise stock exhaust and it was the deepest rumble I’ve heard on a third gen.

Abubaca

iTrader: (3)

It's been 11 years since he posted. ....but I'll put in another vote for an Aerochamber. Loved mine. ....since changed to a Hooker Max Flow. 1 in 1out. Sounds VERY similar to the Aerochamber. With all the mods it's hard to tell what's doing what with regard to sound.

Sierra6

flowmaster 44 is the deepest I've heard.

midias

Anything but flowmaster, Aerochamber or magnaflow and an inline resonator. Flowmaster is probably the worst sounding POS out there.

83 Crossfire TA

iTrader: (2)

I would never describe any flowmaster as "deep." They typically have a metallic overtone and don't sound deep no matter what you do. Aerochambers do typically sound pretty deep, some of the better sounding mufflers out there for traditional muscle car/truck sound.

FWIW, there is a misconception about exhaust and tuning frequency- as the tube diameter gets bigger it needs to get longer to tune for the same frequency. It's the reason why if you like a nice deep exhaust, that ******* truck that someone stuck 2" or even 1-3/4" pipes and glasspacks on sounds great even though when you crawl under it you have that WTF reaction...