Posted: Mon Sep 19, 2011 7:16 pm Post subject: New user, new exhaust. Please Help!
Hello everyone, I'm new to the site, but I've owned my 2001 Impala since 2008. I'm planning on replacing parts of the exhaust this coming weekend, and I need some help. I want a tougher sounding muffler than what Autozone or anybody recommends as a replacement. I've noticed that a lot of impala enthusiasts are using the Flowmaster 40 series. My concern is that I'm doing it myself (with help) and I want to make sure it fits. We don't have any pipe bending equiptment, and I'm sort of getting the idea that pipes will need to be bent in order for it to fit. Can anyone help me with this? Or at least suggest a muffler that will fit, but also sound good?
I have a 2001 Impala, 3.4liter and my exhuast pipe size is 2 1/4".
The flowmaster 40 is an offset inlet and center outlet, so it should just fit?
the flowmaster 40 is available in many configurations, make sure you buy the right one. When I had my exhaust made for the 04SS, I used flowmaster 40's but in the center/center config.
climb under the car and see what you have now. See where the pipes come in, see if they are aligned to each other or if they are offset.
You said you were doing this yourself, best way to learn is to gather all the info you can on your own. Your car may not have the factory exhaust on it, someone may have changed it (prior owner). We can only give you recommendations on stock systems.
Also, nothing will fit perfectly except OEM, so some tweaking may be needed no matter what muffler you buy. You just have to use some common sense and figure out how to get it to work correctly.
Yep just as Pitch said, it's an offset inlet, center outlet. So I'd just go buy whatever muffler you want in that configuration, then when you get it, you'll need no more than a tip and less than a foot of 2.25" pipe, depending on the muffler length and the length of the tip. I'd suggest a 3" tip. Now, if you have a little more time and can get access to a pipe bender or have someone to bend pipe, I'd definitely recommend going the dual exhaust route, just because it sounds good and looks 100x better. Most people would just make a y and run a new pipe to the driver's side then weld a hanger over there. Like I said, if you have the patience, go that route. I actually have a flowmaster crossflow mounted sideways, its different, but way more difficult than the other dual exhaust way. Flowmaster's do drone a bit more than others, but it's not that bad, at least not my 80 series. Magnaflows sound good, but then again summit and thrush mufflers sound good as well. Just do a whole bunch of research looking a videos of different mufflers to come to a conclusion. Obviously with a video, you don't get the same effect as in person, but you can compare still. Good luck with the project!
2002 Impala- SSC, AGX, 18" charger R/t rims w/8mm spacers, Magnaflow cat, U-bend delete, flowmaster 80 series crossflow, z28 tips, HAI, debadged, 35% tint, smoked headlights, full sound system
I installed the flowmaster 40 series delta flow today. Ran into a few problems being that I got the exhaust pipe from Napa, and the resonator from Carquest, and the muffler from Flowmaster, so we had to make a few adaptations, but everything eventually fit together and it sounds great! Thanks for all the help!
Posted: Tue Sep 27, 2011 10:13 am Post subject: no duals
I didn't put on a dual exhaust mainly because I'm broke! I'm still a student, so I only work part time, it takes me a while to save any money let alone EXTRA! Maybe down the road when I get a good job haha. My next step however, is replacing my engine. I have a 3.4 with 240K miles. Surprisingly, the under body of my vehicle is in extremely good shape, so I'm going to replace my motor in the spring. However I'm going to upgrade to a 3.8, and I'm aiming for a re-manufactured engine vs junk yard diving. But I'll save that for another forum.
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