I have a stock 302 with stock exhaust manifolds. I was wondering what a dual 2 1/4" exhaust system with an H pipe that goes all the way out the back with two glass packs would sound like. I would like something that sounds good (growls) & is a little loud but not annoyingly loud. Does anyone know what this would sound like or have any suggestions? Also this is for a 4-door ;P
the H pipe would soften the "rap" a bit, but most of the sound depends on the mufflers you get. i used 2 1/4 with an X pipe i made using, of all things, summit $15 mufflers. ends at the axle. rigging tailpipes would dampen it more. has a nice sound, not too loud, but they know you're around.
I had that exhaust at one time. I didn't put it, it was on my 75 when I bought it. I didn't care for it. I would definately recommend running it out the back in one way or another, but glasspacks on that small pipe just don't sound good IMO. Flows sound good when you can get them out the back. They drone too much when ended under the car. Turbos sound good out the back, but are probably milder sounding than you are looking for. My .02 Dave
What is the routing of the flow on the "H" and on the "X" design, where are the mufflers located in these designs?
Thanks for your input so far. I am going to be calling the local exhaust shop to figure out what some of my other options are. I don't know of anything on where anything would be located I just heard that an H pipe would be good to use on an exhaust system. The reason I was going to use glasspacks was because they are free, I know someone that has a huge stock of them and he said he would give me a pair but thats if the guys at the exhaust shop will alloy me to bring my own mufflers. After doing some thinking I am not sure I would like glasspacks but I have heard them on 2" exhaust and wasnt too bad but it was louder than I liked. This was on a truck with a 302 and it had the exhaust ending before the bed.
If he has a good selection, go for a pair of the largest diameter he has. Then, if that largest diameter is available in different lengths, get the longest. Put them back as close to the rear axle as the muffler shop can put them. This will keep the glass from blowing out anytime soon, by keeping it as far back from the heat source (engine) as possible. The larger diameters will slow exhaust velocity some and gain you low tones instead of high sound volume like the 2"ers you heard on that truck. The H-pipe will be up around the tranny and will equalize the exhaust pulses. X-pipes don't lower the volume as much, but make a little more torque in a narrow range. Dave
