I think I'll go for the Flowmaster 40 Series. What company Pipes should I get, I want 3" Pipes.

Thanks.

 

The Hooker Aerochambers are awsome for performance. but garbage for sound. ive seen 2 people come into the local muffler shop get them put on cuz they hear they're awsome. they went around the block and came back and got them taken off. one was a 71 camaro with a 350. the other was a 90 or a 91 firebird.

Im running the flowmaster 2 chambers on my 67 Camaro ss. i think they stopped making them. it was either a 20 series or a 30 series. im not to sure. get the delta flow if u want it to be mild at idle and normal driving but loud when u stomp on it.

Personally i like it loud all the time. so i have dual 2 1\2 with h pipe, and 3 inch cut-outs when i wanna be really loud

Invest in cut-outs. best money ive ever spent on my car.

 

i just checked out those super 40. holy crap i almost wanna toss my 2 chambers and get them. so do that one forsure. it sounds so good. and i like how the first thing they say is. "significantly outflows the old 2 chamber"

so yea, super 40 series is the way to go.

 

FYI, the super40 series is a scam... 40 series and super 40s are the same muffler.

I just got off the phone with Flowmaster's tech dept. and confirmed I was right all along. The Super 40s ARE a big scam if you already have the 5" X 10" cases in your American Thunder kit. You will not benefit from these unless you're replacing them with the old 4" X 9.75" mufflers. Sure is funny how they fail to mention that in their advertising, huh? I guess they think we're all idiots and won't actually check them out when we get them. WRONG! He also told me they wanted to make a statement with the American Thunder kits so they started using the bigger mufflers, I don't know how long or when they started using them however. It would've been nice if they let everyone know that these are the same mufflers in the C/B, but they didn't.

I told him what I found and he didn't deny anything and then he tries to tell me he just recently found out about this himself, yeah right. I told him their advertising is very misleading and he tells me all I had to do was ask. Well, I did ask someone before I ordered these and was told that the 4" X 9.75" Delta 40s you can buy individually are the same ones that come in the kit, that was a lie. The American Thunder already has the Super 40s included. He asked me who I spoke with originally and I failed to get a name and he told me I should've.

He said he would try to get the word out about this, then apologized and said he was sorry for the inconvenience and for me to send them back for a refund. I still think this is a crock to spray black paint on the same mufflers offered in the kit and turn around and try to market them as "Super". I think that is short for Super Sucker for anyone who actually buys them trying to improve upon the American Thunder system. Needless to say mine are going back because I'm not a sucker.

I still love Flowmaster's sound and always will, but I will now think twice about buying their products again after seeing how they treat life-long customers that helped make them what they are today. I thought I would get the word out to my fellow enthusiasts because I don't see Flowmaster being in a big hurry to fess-up to this.

 

Check out Pypes Exhaust they have complete exhaust systems for a lot of the GM cars. They have 2.5" and 3" systems that will bolt right up the stock manifolds or headers.

 

Thanks Jeff H.

Ewing NJ huh? That's where my Brother lives and that's were the '67 'Bird currently is. I wonder if I've ever seen your Camaro before.

 

I also have a 67 400 FireBird. 10:1 compression, Comp Cams XE269H cam and 40 series flowmaster that dump under the car right before the rear axle. I get so many comments on how good my car sounds you would be amazed. Also there is nothing better than driving by a couple Honduhs and setting off their car alarms and watch all the bleach blonde guys come running out of the store

 

Haha sounds awesome.

What size Pipes are you running?

 

Not my 68 or my 69, they haven't been on the road yet!

 

I'm running 2.5 inch pipes with a cross over just behind the manifolds.

 

I'm running full length headers and full dual exhaust on my car with the old 40 series mufflers and I love the way they sound. I've actually got a couple of sound clips on my computer but no way to post them. In the near future I want to get an all new exhaust system with a X-pipe, but right now I can't afford it.

 

Hey buddy here is a sound clip of my old setup, only thing i could find... Save As

NOTE: the first part of the clip is next to the motor and the last part is behind the car... sorry my motor is to loud

It makes this noise:

"whiirrwirirrrirrrrwwrrrrrrararrararararrr.... ."

lol

 

This sounds similar to mine except mines a little more "choppy / loapy" on idle, and louder but its hard to tell how loud it actually is without standing next to it. (I can crank my speakers and make it real loud ) However my exhaust doesn't go over the axle instead it dumps in front which is probably why it seems louder to me.

 

Thanks for all the input.

Nice sounding car talos.

 

ya thats my old setup... don't have that anymore...

that was a .466/.488 cam with hooker comp headers, true dual 2.25" 40series...

but its .499/.520 cam with LongTube hookers, truedual 2.5" 40series, but im thinking about going to a magnaflow