Im looking to buy a 3 inch cat-back for my 92 camaro with a 305 TBI, i got under the car yesterday and noticed a foot long gash in the intermediate pipe, i guess it just cracked in half. Now i need a new one. I want something that is going to sound good at idle and at cruising speeds, and my price range is from $350 to $400. Any advice on which system to go with?

 

anyone???, i plan on buying a system in the next couple of day and i would like to know if i get the right one

 

Find a used Borla system!!! I bought mine on ebay for $275. It's stainless steel, so it'll last a looong time.

 

i was thinking about this system from jegs, its a little more than i wanted to spend but its stainless steel and will last a long time.

http://www.jegs.com/i/Magnaflow/642/16829/10002/-1

 

Check out Magnaflows website, they have video of a third -gen.
http://magnaflow.com/

I bought one of their catbacks from this company:
http://www.hottexhaust.com/index.htm

Do a google search for them and look for discount codes.

I used "veedub" and paid $360.00

I also got a cat from here: http://www.discountperformanceautoparts.com/

 

check out hookers aero chamber system...i used it on my 305 tpi sounded great

 

thanks for the info, i did check out magnaflows website, but the clip they have is of a 350 TPI, and i know it will sound different on my 305 TBI.

 

I'd probably try to avoid 3" exhaust on a TBI 305. When I had my TBI 89 Formula, I put a 3" dynomax CVX kit on it and pulled the cat. It sounded really good, but my fuel economy suffered and I really think the car made slightly less power with the larger exhaust (this was years ago, in the time before dynojets began to roam the land). If I personally did another TBI car, I'd probably stick with a 2.5 or 2.75" exhaust.

Your results may vary.

 

Do you know of a smaller system that i could go with that is stainless steel? or do you know of another system that works good with TBI?

 

I put the magnaflow 16829 as well as a magnaflow hi flow bullet cat on my 92 rs that has 305 tbi, i love it. before i put it on there was NO muffler due to "rustation", if thats a word but anyway after install, i noticed that it wasnt any quieter. reccomend this!

here is video clip of magnaflow, keep in mind everything is stock 'cept for cat and cat back. http://www.youtube.com/watch?v=PjrgbadwhfA

i purchased this from hottexhaust for 426 shipped including the retail $ 90 cat.

 

that video was very helpful i been looking for a video of a stock camaro with that system. does it sound good at cruising speeds?

 

It has a very nice deep tone at cruising speeds. i wish i would ve taken video at cruising speed and WOT. but didnt have time while i was home. I did this while i was on leave from iraq and now im back there reading about all this great 3rd gen stuff. so it will be awhile before i get to video anymore stuff.

 

ok, i talked to a local exhaust shop today, and they said that if i get a 3 inch system it should not affect back pressure or my fuel economy, they said if i mess with the cat it would affect that because the back pressure is built up at the cat, now is this true or not?

 

Go magnaflow mine sounds amazing

 

Im probably going to be ording the magnaflow system within a couple days, but before i order it i have a question. All of my dads friends build hot rods for a living, and they all said that since my motor is not making a lot of horsepower i dont need a 3 inch system and that it will not create enought back pressure and will hurt my fuel economy. I called a local muffler shop and they said the back pressure is created at the cat. I dont know what to believe, which is true. Any and all help would be appriciated.

 

anyone???

 

Check out this "sticky". Lots of good info, techincal in theory, with good conclusions. Check all responses also.

https://www.thirdgen.org/forums/exha...-you-ever.html

 

I believe that the bigger exhaust will hurt backpressure, i never heard of the cat creating the backpressure for the whole exhaust. i orderd a dynomax cat back system from summit for $184 2.5'' and stainless steel. it sounds great at idle and there is still a good rumble at cruising. at lower RPM's it sounds alot meaner then at 2500 and up

 

Magnaflow just installed!!! Incredible sound. Can't believe the richness of the sound. A nice deep rumble at idle that is "soft" sounding. WOT it really sounds mean in a good way, lol. I got mine for $350. Shop around you'll find a good deal.

 

Do you have a part number on that?

 

yeah at summit it WLK-17495 for a H.O. from 82-92 5.0/5.7 dual tailpipes and the one i orderd for $184 is # WLK-17493 for 83-92 2.8/3.1/5.0 dual tailpipes. installation is fairly easy, you need to get all 4 wheels of the groung and then just drop two crossmember supports with a couple bolts and then you have the room to get the exhaust over the rear end. Be careful for the brakline because i busted my right rear brake in the process but it was alredy decrepit and should have been replaced for saftey.