hi and how are you? i have a 82 corvette with an automatic transmission. it has a 350 small block with edelbrock 600 carb.

i want to increase horse power but i dont have too much money.

i want to start out with the exhaust system upgrade.

is it a good idea to remove the catalytic converter and just run straight pipe/down pipe?

i want to change the mufflers. which muffler will give me more HP and good sound?

magnaflow vs flowmaster? what series muffler or what the exact muffler name, model or style.

i want to change the headers also. should i go with chrome or ceramic headers?

thanks

 

I recently fabricated my own mandrel bent 2.5" true dual exhaust system from off-the-shelf mandrel bent parts from Summit and eBay. See Homemade-2-5-mandrel-bent-true-dual-exhaust-system for more info.

 

You still have the origional cat from '82 ? A 30yr old cat is probably plugged. My 1st step would be to check that.

 

If you want your car to sound like a Cadillac then go magnaflow, if you want to sound like you have some power and get noticed then get a Flowmaster.
If you really want to save some money and sound awesome get some Thrush welded chambered out of Summit for only $35 a piece.

 

yes d car still have it original cat for all these years. It a 82 and were i live, d car doesn't have to go for emission test. I livein washington state. I want my car to breath better and sound good with power but not too much drone to d point that a conversation or a phone talk can't happen

 

I've had a friend that took the cat off , rammed a pipe into it and cleaned everything out of it and then put it back on. Worked for him.

 

ok will removing the cat help with back pressure and increase horse power? if yes, it will increases horse power how much? is worthy it to remove the cat? how loud will the car be without the cat? i am trying to get as much power/hp i can get from the engine. thanks

 

Well if the cat is plugged , you'll get better mileage and power.
The car will be a little louder without the cat. Most vette owner have removed the cat long ago.

 

ditch the cat. i custom made side pipes with fiberglass covers some drone sounds healthy, i made it loud so if my ex wife ever came back i wouldn't be able to hear her.

 

lot of humor. ok am going to remove d cat and put in down pipe. any recommendation for headers. Flowmaster but they r inseries or style. Which series or style flowmaster muffler should i get or i do magnaflow without cat

 

Here are the headers I mentioned:

Headers, Full-Length, Steel, Ceramic Coated, Corvette

It will be hard to find another set of full length ceramic coated headers for this price.

 

I heard if i just remove my cat converter and use a philip screw driver and remove the gut , it will give me performance and also improve the sound. what do you say about this theory? has anyone ever done this and what is the outcome?

i am will to do either, remove cat and hallow it out or remove cat completely and put in a pipe in the area where the cat is remove. i will still use the original muffler. will this result to better performance and louder or deeper sound?

i saw this note below somewhere. will this info affect my car and computer with my set up. i have a 400 small block with no more crossfire injection but a eldbrock electric choke carb.

"You could develop issues with the O2 sensor. After removing the cat con (btw, do not plug the air pipe, either remove the air suystem or leave it open, if you plug it your air pump is pushing air into a dead end) run the car and jumper the a & b ALDL pinouts just like you do for going into field service mode for reading codes. The CEL will flash at a steady pace. Fast = open loop (checking sensor voltage) and slow is closed loop (each flash is a cross count where the lambda value passes stoich. 14.7:1) anyway, after warmig up the lamp should keep flashing slow, if it goes to fast again it's going out of closed loop, the sensor will be too cold and needs to be moved closer to the header, preferrably to a collector. The cat con produces massive amounts of heat, that's why the sensor is placed right before it (can't put it afterwards as the rear section uses the oxygen in the air from the air pipe for the oxydizing section and this would give a false O2 signal)"

 

Hey,

I recently bought an 82 that had already been modified a little. The previous owner removed the cross fire setup and installed a Edelbrock performer carb and manifold. The car runs/drives well and I plan on keeping it. I got all the old parts if I ever want to change back. Just doing little things right now. I want to get rid of the dinky Edelbrock Pro flow air cleaner. What are you running? I'd like to go w/a K&N assembly but I understand they don't fit the Edelbrock card. I believe hood clearance is concern as well though a drop plate setup is available for a 5 1/8 card.
Any suggestions and ideas would be great.

Thanks

 

Have you guys thought about the SPINTECH mufflers, the Spintech Sportsman would be great choice with no cat. Magnaflow aren't bad and the Flowcrappers has to much drone and don't flow as well.

 

this is what a lot have done .cost zero.if the cross-fire intake is gone ,is the o2 sensor hooked up ?the computer does not work with out everything there.if you want more performance i would decide how much you want to spend.rear end gears will help but a new cam would really give you some power and if theres not too many miles on the motor put on some new heads.

 

Don't flow as well as what? A header.
Flowmasters are the sound of power, Its a funny thing every 500 horse car that appears in Hotrod has Flowmasters not magnaFLAWS.
I really dought they would choke their engines down with an inferior muffler.
Get over it, Flowmasters are the in thing and are what the masses run because why, because its like breathing, its what you do to survive.

 

Flowcrappers

Interesting, someone actually did a dyno a while back (took it from anothe site, not a corvette) :

 

Now you know, Supreme4ever,...........ya don't talk bad about Flowmasters when Tim H is around!!!

I have Magnaflows on my 'vette, and I like 'em just fine, don't have any experience with the Flowmasters, so I can't say much about 'em one way or the other.


Scott

 

Dronemasters will pick up power over any stock muffler, when you get into big power though unless youre running their race series muffler they are restrictive in comparison to a number of them out there.
They were cool in the 80s..

Most buy them because everyone, their brother and the gardener has em. Think weve all had a pair or two over the yrs


Dynomax super turbo will flow better and be quieter. Will your stockish 350 max out a dronemaster, probably not.

All sarcasm aside either one willl be fine for your motor though if all you got is stock. About sound and personal preference at that point.

faster you get the quieter piece you start looking for it seems.

 

dynomax super turbo or magnaflow which one do recommend? If you recommend magna pls mention what series or type/model magna muffler. Link to were to buy muffler that you recommend will be good and reason why recommend that muffler. I dont like too much drone. I want sweet, deep tone that also shows power to the listeners. Thanks