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  #51  
Old 07-24-2012, 07:17 PM
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Quote:
Originally Posted by pnoyako85 View Post
just the thought..lol.....
I hear ya.

I'm really surprised there's not as much raspiness with an H-pipe. I would have thought there would be MORE compared to an X-pipe.
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  #52  
Old 07-24-2012, 07:55 PM
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Quote:
Originally Posted by TwinsPoppa View Post
You could .... but why?! LOL!

Sound-wise, based on that first audio I would go with H-pipe.

However, because we don't have a true head-to-head comparison recorded from the same cam - its really hard to truly know how they compare. I'd love to have an X-piped vehicle next to his and recorded with the same cam.

Need to find someone with X-pipe close to him and do the comparo. The placement of X-pipe also matters. Some install in center with extension pipes on both sides of X-pipe and others have done X-pipe at very beginning with extension afterwards, replacing the resonator.
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  #53  
Old 07-24-2012, 08:25 PM
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it will in the BMW MEET Bimmerfest.....

Twinspoppa got the GOOD NEWS...we Can Tailgate Everyone!!!!.........I have a 14" grill....pretty small but good enought for burgers. and dogs...as the food their is about $8 for dogs i believe last year....i know its pretty expensive....we'll park at the end close to the hiway for us tailgaters..lol....

Pnoyako
my boy
Twinspoppa
Eugene

are in so far..we can all chip in maybe we'll need another portable grill if its alot of people...but thats good we can do it...
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  #54  
Old 07-24-2012, 09:05 PM
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The H pipe does sound better. How is the torque now with it in place? And did you remove the resonators? Awsome.
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  #55  
Old 07-25-2012, 09:08 AM
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I like it!

The H-pipe mod is now a higher priority in my todo list
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  #56  
Old 07-25-2012, 10:00 AM
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yes resonator was cut out (removed) & a stainless steel h-pipe with straight connector in middle (not arched) was added in the resonator's place - that was the only work that was done.. 3hrs labor.. $430 or something like that the shop charged.. Torque is almost identical - i cant feel a substantial difference - and this maybe because I feel like the HP went up by a bit.. I feel if I floor the car it breathes so much easier - exhaust gases flow out easier & guts down the line faster... The RPMs go up to 5,500 alot faster it feels.. it picks up speed a bit faster then before... maybe its just a feeling but it seems to be true.. i felt maybe before I had a little extra tap (torque) power in lower level rpm - but its almost unnoticeable (unless maybe your towing or something).. before it felt like it had a little more ummppp in lower RPM - a little more pull - but now it revs faster... with the H pipe I feel there is increase in HP... so i guess it evens it out??? --- maybe torque fell by a very very very small margin - but HP def increased by a noticeably margin... thats my feeling atleast... would have to dyno it to be 100% sure but this is what I feel driving the car for the past week....

Last edited by BMW-x5-48is; 07-25-2012 at 10:05 AM.
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  #57  
Old 07-25-2012, 01:23 PM
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Quote:
Originally Posted by BMW-x5-48is View Post
yes resonator was cut out (removed) & a stainless steel h-pipe with straight connector in middle (not arched) was added in the resonator's place - that was the only work that was done.. 3hrs labor.. $430 or something like that the shop charged.. Torque is almost identical - i cant feel a substantial difference - and this maybe because I feel like the HP went up by a bit.. I feel if I floor the car it breathes so much easier - exhaust gases flow out easier & guts down the line faster... The RPMs go up to 5,500 alot faster it feels.. it picks up speed a bit faster then before... maybe its just a feeling but it seems to be true.. i felt maybe before I had a little extra tap (torque) power in lower level rpm - but its almost unnoticeable (unless maybe your towing or something).. before it felt like it had a little more ummppp in lower RPM - a little more pull - but now it revs faster... with the H pipe I feel there is increase in HP... so i guess it evens it out??? --- maybe torque fell by a very very very small margin - but HP def increased by a noticeably margin... thats my feeling atleast... would have to dyno it to be 100% sure but this is what I feel driving the car for the past week....
You going to Bimmerfest? If so, we can record yours and mine with the same cam and at least get a better comparison.
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  #58  
Old 07-25-2012, 04:16 PM
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BMW4.8is...roll with us ..were meeting at exit 11 south side rest stop on the trnpke around 6-7am...
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  #59  
Old 07-25-2012, 11:09 PM
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Too raspy for me. How about the h-pipe without the resonator removed? Would that work?
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  #60  
Old 09-09-2012, 02:24 AM
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Improved Exhaust.......>>>>
its music to my Ears........


BMW X5 Exhaust - YouTube
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Last edited by pnoyako85; 09-09-2012 at 02:55 AM.
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