Firebird Nation banner
Cancel
Create thread New Garage Forums

best first gen. 400 mufflers

1 reading
Jump to Latest
3.6K views 8 replies 4 participants last post by  69limelight400  
6
#1 ·
Been on for a while tonight looking for muffler solutions. The stock OEMs that came with the car sound really good, but I am looking to upgrade. I DO NOT want to sacrifice sound OR flow. I guess I am looking for it to sound like a caged grizzly that's pissed off, seriously. I have been doing some research and decided to ask here before making a purchase since this is the largest abundance of knowledge on the subject in the world.
Should I go with Flowmaster 40s, OR Flowmaster 10s, OR Magnaflow Universals, OR Magnaflow XLs, OR Cherrybomb Glasspacks OR WHAT??? I really need some help here. Listening to various Youtubes make straight pipes sound the best, but I am not sure how that will work with me wanting to drive the car without being pulled over;) Any sound-byte links with the sounds that y'all prefer would be great. It will be on the 1969, 400, bored .060 over with Comp. Ram Air IV cam and Headman's headers. Thanks for any help choosing in advance.
Image
 
6
#5 ·
Thanks for your opinions. I wonder how Magnaflow makes a product out of 409 Stainless with a lifetime warranty and still undercuts Flowmaster prices by 30% before upgrading a Flowmaster to 409 Stainless Steel? Is it that much cheaper to make a turbo muffler over a chambered? Anyone try this Pypes company? Of course my first instinct was to go with Flowmasters (Super 40s or 44s), but then I started to look at flow rates and the turbo mufflers seem to have that over the chambered. I really would like to hear all of them on a Pontiac 400 bored 60 over with Ram air IV cam;) Got any youtubes of your beast's sound 400PLUS or Bad67Bird? It would really help out. I have to be honest. After hearing all the different systems last night, I am looking to glasspacks or Magnaflows before Flowmasters just going by what I heard on Youtube and such. Let me know if anyone else has an opinion on the subject. Thanks again for your input fellow birders.
Image
 
6
#8 ·
Thanks for the youtubes BB. I want to post one for you to listen to and tell me what you think. It is not a bird from what I can remember, but it definitely made me think. I will find the link and post it tonight. Maybe I will start a new thread and get a survey going.
Image
 
Firebird Nation
posts
664K
members
42K
Since
2004
A forum community dedicated to Pontiac Firebird owners and enthusiasts. Come join the discussion about performance, modifications, classifieds, troubleshooting, maintenance, and more!
Full Forum Listing
Explore Our Forums
Open Discussions Fourth Generation Pontiac Firebird (1993 - 2002) Second Generation Pontiac Firebird (1970 - 1981) Introductions and Staff Photos General Engine (Non-Gen Specific)