Hey Guys,

A little while back I talked to Ikester (Ike) a forum member about his exhaust and H/C setup. He has the AFR Head Package and a mild cam (.581.588@114). He also has LTs, Cats, and the Magnum Series Plus Catback.

I want to do a setup like him, since I am in college this is going to be spread over about 3 years, but I am starting with the exhaust first, and the catback will be coming very soon after christmas this year.

The reason why I posted this is because since I am going to be doing the catback soon, I want to know how much the exhaust affects the way the H/C package sounds. If you think of a very quite setup and a very LOUD setup, I want right in the middle. I definitely want to be able to hear the cam, but I don't want the H/C with the exhaust combo to be overwhelmingly loud. I'm kind of looking for the 70's Chevelle type sound, like my next door neighbors, very aggressive, but not CRAZY loud.

All said and done I am most likey going to go with the AFR Street Heads and probably a custom grind cam, the biggest/most aggressive I can go with it still being streetable. I will have the supporting intake mods as well.

I will also be doing a full exhaust, LT's 3 inch collector, Hi-flows, 3 inch crossover and a catback. This is my question. Since I will be doing the exhaust first, catback very soon... What are some of your suggestions for my exhaust, catback for now, so that I can achieve that 70's Chevelle type sound with the exhaust and the H/C package in the end, all said and done? Is the Magnum Series Plus Catback a good way to go to achieve that sound?

What should I be looking at?

PS - If some of you guys have a real aggressive H/C package, post some clips if you have them! And let me know what type of exhaust setup you're running too.

 

I would check out the B&B PRT exhaust system. It's louder than the RT66 but quieter than the Bullet system. It has a nice deep tone to It. I think It sounds awesome to tell the truth. Good choice going with the AFR Heads I think with a nice cam the B&B's and AFR's you'll have the sound your looking for without too much noise. GHL has another really good sounding exhaust the Magnum system Is my favorite from GHL. Check Into both & best of luck. Lets hear a sound clip or video when your finished

 

With a relatively mild to avg cam, exhause sound will not be that loud, other than WOT. Since you are on a tight budget keep your eyes on the Parts for Sale Section. Don't waste your $$$ on High-Flow Cats. I have a 427...before and after high-flow cats, the RWHP/TQ was the same.

 

Well the reason why I am going catted is because I don't want the sound of the offroad. And I need to keep this one emissions legal.

My Mustang has an o/r X and I like the sound, but it is just a whole other noise level, which I don't exactly want on the Vette, it is too high pitched, and I want something much deeper for the Vette. Plus we ran into problems with emissions testing.

Here is the MTI X1 cam which is pretty big from what I understand... Any idea of what kind of exhaust this guy might be running? Sounds about what I am looking for sound wise...

http://www.youtube.com/watch?v=4YtIG...AAE0DE&index=1

 

Nevermind, it says it right in the comments. LT's, X, and Loudmouths.

I definitely do not want to put loudmouths on the car. I have them on the mustang, and it is going to be way too loud, especially if I go with a custom grinds bigger than the MTI X1, which is likely.

I should probably be going with some type of chambered muffler? Or do you think that would supress the sound too much?
Although I would like it to sound somewhat close to that at the idle... Just supress the cam a little more at WOT, to give it a big block sound instead of the loudmouth "opening up to the heavens, raspy" sound. And obviously in this guys case, the loudmouths are NOT supressing the sound at WOT, they are deafening intensifying it.

 

Sounds like you want a cam slightly larger than mine like a 228/232 duration. Youll have a nice lope sound to it but very streetable...Be careful with the cat-back you choose, some kits will have drone once you install LT headers.

Cant go wrong with GHL Magnum

 

Yea Ike, depending on when I am ready to order the catback, hopefully early spring, I may have to make a trip down to hear the car, if thats ok with you

Otherwise I am going to have a really hard time figuring this out. I hate playing around with this stuff, and I don't have room for mistakes

Also, can you guys give me an idea, the MTI X1 cam is 230/227, and it is considered a very aggressive, streetable cam. What setup (2xx,2xx) starts to become unstreetable? For instance, MTI also sells the S1 which is 244/244, which I am guessing is FAR from streetable...? But what setup is the most aggressive I would be able to go while still be streetable? Give it to me in #'s (2xx , 2xx ?)

 

Ike I listened to your clip again also... I'm starting to think that the Magnums might be a little too quiet for my taste. Your's is very clean, but I think I might want a little "rip" to it.

For instance, this guy revs it once or twice while on the dyno. It sounds like he is running straight pipes, that is TOO loud for me, but I want something that is going to give me A LITTLE of that type of aggressive "ripping" sound....

http://www.youtube.com/watch?v=DG65m...AAE0DE&index=3

 

get out to some car shows in the spring check out and listen to peoples cars. you'll hear tons of different combos.

 

Yea, I will and I have a little already. Problem is not a lot of guys have a H/C package to go along...

 

update your location, best bet would be to find someone local and hear the car in person