IS F (2008-2014) Discussion topics related to the IS F model

over 4k rpm sounds amazing. any ways to get that under 4k rpm?

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Old 03-21-18, 01:51 PM
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mahcah
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Muffler delete then.
Old 03-21-18, 01:53 PM
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AndrewISF
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X-Force exhaust. Got mine brand new shipped for $630 almost 2 years ago and no complaints besides having to trim the tips to install but from what I understand that issue has been resolved.
Old 03-21-18, 02:37 PM
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Weapon F
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You have a car when new was 65k that only 5,100k were brought to US, it's rare, a head of it time with several design features such as the 8-speed transmission, direct and port injection, even infamous fake exhaust tips, power dome hood, vents on side of front fenders etc all features and stly styling cues that are currently being used on all sorts of cars today from BMW, Merc, Audi you name it. So why cheap out? if you don't have cash right then hold off until you do. You can remove the mufflers but that's going to make An Extremely Loud and kind of obnoxious sounding, You can go with decent set of axle back mufflers or more expensive cat back set up or if you like a nice induction sound you can go with the RR racing tuned intake setup that'll cost you a little over $300, axel back $500 range cat back from $600 to $4000. For $1,000 could get you the X-Force exhaust RR racing Tuned intake or equivalent and your car will sound great.
Personally I would prefer a nice refined powerful sounding car versus something just loud and obnoxious.
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Old 03-21-18, 03:05 PM
  #19  
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Originally Posted by Weapon F
You have a car when new was 65k that only 5,100k were brought to US, it's rare, a head of it time with several design features such as the 8-speed transmission, direct and port injection, even infamous fake exhaust tips, power dome hood, vents on side of front fenders etc all features and stly styling cues that are currently being used on all sorts of cars today from BMW, Merc, Audi you name it. So why cheap out? if you don't have cash right then hold off until you do. You can remove the mufflers but that's going to make An Extremely Loud and kind of obnoxious sounding, You can go with decent set of axle back mufflers or more expensive cat back set up or if you like a nice induction sound you can go with the RR racing tuned intake setup that'll cost you a little over $300, axel back $500 range cat back from $600 to $4000. For $1,000 could get you the X-Force exhaust RR racing Tuned intake or equivalent and your car will sound great.
Personally I would prefer a nice refined powerful sounding car versus something just loud and obnoxious.
Couldn't agree more with this
Old 03-21-18, 04:58 PM
  #20  
semnosNSX
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Originally Posted by Weapon F
You have a car when new was 65k that only 5,100k were brought to US, it's rare, a head of it time with several design features such as the 8-speed transmission, direct and port injection, even infamous fake exhaust tips, power dome hood, vents on side of front fenders etc all features and stly styling cues that are currently being used on all sorts of cars today from BMW, Merc, Audi you name it. So why cheap out? if you don't have cash right then hold off until you do. You can remove the mufflers but that's going to make An Extremely Loud and kind of obnoxious sounding, You can go with decent set of axle back mufflers or more expensive cat back set up or if you like a nice induction sound you can go with the RR racing tuned intake setup that'll cost you a little over $300, axel back $500 range cat back from $600 to $4000. For $1,000 could get you the X-Force exhaust RR racing Tuned intake or equivalent and your car will sound great.
Personally I would prefer a nice refined powerful sounding car versus something just loud and obnoxious.
Well said!
Old 03-21-18, 05:18 PM
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jat0223
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Well said, the rr racing tuned intake isn't close to $300 though. It's way above.
Old 03-21-18, 06:28 PM
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Htony
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So it seems IS does not have sound generator like Audi SQ5? Try SQ5 after custom setting driving dynamics.
Old 03-22-18, 01:00 PM
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Leander311
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Also, I noticed the Nitto NT-01 in 265/18/40 has its water channels at the EXACT spacing such that their frequency on the road matches the engine speed in 3rd gear... So... there's that! Lulz lulz.
Old 03-23-18, 10:32 AM
  #24  
400to300H
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Did a mileage experiment today, keeping it at 60mph on my 21 mile highway commute this is what I got, I think this little mod did make a little differnce...

Old 03-23-18, 10:53 AM
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goto35
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Make a difference for the negative or the positive? Still debating if i want to do it.

Originally Posted by 400to300H
Did a mileage experiment today, keeping it at 60mph on my 21 mile highway commute this is what I got, I think this little mod did make a little differnce...

Old 03-23-18, 12:02 PM
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Ah sorry guess i should have mentioned that, gain of about 3 mpg
Old 03-23-18, 02:02 PM
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So this is not harmful to the engine right?
Old 03-23-18, 02:28 PM
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mahcah
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Originally Posted by goto35
and beacause of this...wont be doing it now. lol
Well you answered your question here since you're seemingly still debating .
Old 03-24-18, 09:17 AM
  #29  
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Originally Posted by 400to300H
Did a mileage experiment today, keeping it at 60mph on my 21 mile highway commute this is what I got, I think this little mod did make a little differnce...

off topic - keep an eye on your alternator. Ever since I bought my car the voltage indicator bar always sat 1 step above the battery icon. Then one day I noticed that it dropped one step down (even with the battery icon...like yours). It stayed that way for about 5 months until one day the car wouldn't start. I troubleshot the issue and found that the alternator went out. Every car is different, but I just wanted to share my experience.
Old 03-24-18, 11:36 AM
  #30  
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Thanks for the heads up. Mine has been one step higher most of my 5k miles of ownership, first time I noticed it lower like that. Have a three year 30k warranty so might as well get it checked out...


Quick Reply: over 4k rpm sounds amazing. any ways to get that under 4k rpm?



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