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f4i underBODY exhaust

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  #11  
Old 11-02-2010, 01:44 PM
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being "down there" I think painted black with high temperature paint would look great!

also, I'm wondering a little about maybe seeing if it would work to do an offset style muffler and having the exhaust come out on the other side...back-pressure definitely wouldn't be an issue of being lacked on.
 

Last edited by Xander F4i; 11-02-2010 at 02:02 PM.
  #12  
Old 11-02-2010, 01:52 PM
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Originally Posted by John Cu
Looks fine to me!!, i always wanted to do that but i've seen a video on youtube of an f4i with a similar muffler but its smaller and of course louder. That's why i havent done that, too much noise will make my head to explode.

So your design is quiet or how much loud it is??
it's nowhere near that loud, it's a bit louder and a bit meane sounding than a d&d exhaust
 
  #13  
Old 11-02-2010, 02:41 PM
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ozf4i: what type of car is that mid-muffler off of??
 
  #14  
Old 11-02-2010, 03:55 PM
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You used a resonator off a compact car? Those aren't ment to reduce noise, they are ment to reduce resonence inside the car.
 
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Old 11-02-2010, 04:00 PM
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Originally Posted by Xander F4i
ozf4i: what type of car is that mid-muffler off of??

I'm not sure mate I went to a scrap yard with measurements for maximum width and inlet pipe diameter, spent a while picking through till I found a match, it would be off a small Japanese probably a 1.3L or similar
 
  #16  
Old 11-02-2010, 04:08 PM
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Originally Posted by boredandstroked
You used a resonator off a compact car? Those aren't ment to reduce noise, they are ment to reduce resonence inside the car.

Actually it has more than 20db impact on the noise.
 
  #17  
Old 11-02-2010, 04:18 PM
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Yeah resonators are used to cancel out certain frequencies by vibrating at certain RESONANT frequencies to help quiet the exhaust note or help tune it to a specific sound, not to reduce resonance inside the car.
 
  #18  
Old 11-02-2010, 05:53 PM
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What did you come up with for your maximum dimensions?
 
  #19  
Old 11-02-2010, 06:00 PM
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Originally Posted by Xander F4i
What did you come up with for your maximum dimensions?
I'll check when I get home from work (10am here) and get back to you mate
 
  #20  
Old 11-03-2010, 08:45 AM
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real clean look from the zoomed out view. I still have the original exhaust because i keeep going back and forth with what i like best, this by far is the cleanest look. reminds me of this eBay tip i saw but with the added muffler to it Name:  stealth012.jpg
Views: 377
Size:  73.1 KB

http://cgi.ebay.com/ebaymotors/01-07...Q5fAccessories

were you able to connect the O2 sensor on somewhere? thats my problem, i would have to drill a hole for it, i dont wanna have my FI light on constantly.
 


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