I'm wanting to get a cherry bomb exhuast for my truck. Its a 97' chevy vortec 5.7l (so sue me). The engine is completely stock minus its true dualed with some off brand glasspacks. Its 2.5" all the way back and dumped at the rear axle. I don't like how puffy it sounds and I was wondering how much of a diff it would make if I went up to 3" from the cats back and slapped cherry bomb glasspacks on it. Also I was thinking about dumping it closer to the bumper. Any comments would be great.

I'm looking for a sound kinda like this: http://video.google.com/url?docid=50...CRGERM7zUYViTw

 

This guy cut open a Cherry Bomb and said ithey're restrictive (see 2nd paragraph):

http://www.greenfries.info/Resonator.htm

I have looked down Cherry Bomb glass packs and Cherry Bomb turbos and they both had reduced ID inside the muffler compared to the inlet and outlet pipes.

My Flowtech Raptor is the same ID all the way through. Flowtechheaders.com has glasspacks called Red Hots. You would have to call them to see if they are same ID all the way through, as I only know about the Raptor, which sounds pretty good on my truck!, though it's not all that loud, but enough I can hear it over the radio.

Oh don't worry about you have a Chevy. I signed up to the GM-Trucks.com forums and that site is not near as good as this site, though to be fair I must say they are probably a lot newer so they don't have as much activity and far fewer forums, but I did get some good advice there. I have the two Fords below and a 7.4L Chevy chassis motorhome.

 

I'm not really worried about air restriction since I'm not making it a race truck yet, that can wait until I drop a 383 into it.

The main thing I'm really wondering is what kind of sound difference is there between running 3" from the cats back and running 2.5" from the cats back w/ say 3x20" tips. If i was running like 18-20" cherry bomb glasspacks, that is.

 

I would suggest if you only want sound, just change out the muffler and save the piping money. Existing piping is probably adequate. The muffler usually is the bottleneck in the cat back part of the exhaust. Leave stock tailpipe, or to make it louder go out the side in front of the tire. A large tip will deepen the tone and cut off higher frequencies. Exit under the bed and it will be really deep sounding, but I didn't like that way on my truck. Also, in general, smaller muffler case is going to be louder.

If you want really loud, just put a straight pipe in place of the muffler.

 

i measured the exhaust just to make sure and its actually dual 2 1/4". I think i'm gonna get some glasspacks that are 2.25 in/2.5 out and put some 3.5x20" tips that turn down right in front of the bumper. That should give it a cleaner, deeper sound thats not so puffy and it'll keep the exhaust hidden for the most part.

Now I'm trying to decide if I'd rather have Cherry Bomb glasspacks or Dynomax Thrush glasspacks. From what i've seen the Cherry bombs have more of a raspy puff and the dynomax has more a cleaner rumble.

 

I don't like the sound of the Dynomax Turbo (glass packed) on the Aerostar (kind of puffy I guess), but that may be more a function of the engine size than the muffler. Consider the Flowtech Red Hots glasspacks. They'll be like Cherry Bombs, but I would expect (better check) they will not be restrictive like Cherry Bombs. Some on this site have given high ratings to the Magnaflow, one of which has a regular looking muffler case, but is straight through with glass pack.

 

get cherry bomb extremes they sound wicked on a cammed 383 in a camero my friends got, i just had a flowmaster super40 put on my 1995 302 and it sounds mean i like it..go to cherry bombs website.

 

I don't know about the extremes, but every Cherry Bomb I have looked down (glasspacks and turbo) were restricted by smaller ID inside the muffler). Guess if all you care about is the sound, it doesn't matter, but for the money, might as well have full diameter throughout. Can't hurt, may help.

 

I've had people tell me I'd like flowmaster better but I hate the way they sound at idle. I really don't like the way any turbo style muffler sounds on the vortec engines, they all make that wowowowowowo sound at idle. I like glasspacks because of the raspy growl they make. Right now, while accelerating it makes a low puffy sound, i want it to have a nasty pop to it while keeping it legal, if thats possible.

 

Check out the Terminator Muffler.

But THIS muffler is what you really want.

 

to each his own, but what about dynomax bullets i seen a picture of the inside of one and i bet them will flow.you know belive it or not my 95 4x4 has a new shortblock 302 and its pretty peppy ,actually it rips to 60 mph my 4r70w tranny has some work done too.it shifts quick and hard.my flowmasters really sing.

 

Dynomax bullets are about as free flowing as you can get.

 

The cherry bomb extremes are a chambered muffler and I think they will sound good. Of course a chambered muffler will cost more than glasspacks.

Those Red Hots look good, I'd stay away from any muffler that steps down in diameter.

The race bullets will be loud, they are basically like running straight pipes. Race bullets just knock off 2-3db.