Best intake/exhaust combo?

[Laxplaya!24]

What is the best intake/exhaust combo for the 2010 Altima coupe 2.5s? I want my A/c to sound good and have a boost in performance and horsepower. What would you guys recomend? And how much horsepower will it add.

[QR25DE]

There are multiple intakes available. K&N and the Fujita intakes are the most popular from what I have seen on here. I have the Greddy Spectrum Elite cat back exhaust system which certainly gave me a good improvement on my turbo build.

I would suggest this combination:

- Fujita Air Intake
- Greddy Spectrum Elite Cat-Back Exhaust System (Blue tips are cool plus it passes inspection!). Sounds great, no highway drone noise AT ALL!
- Bully Dog Power Pup or Bully Dog GT Tuner - Run +2 degrees and 91 octane+ Premium Tune.

You can always add a Stillen header which will give you gains as well.

You will notice significant gains. I cannot tell you how much you will gain, but a lot of people would suggest 10-20hp, although it may vary.

[D-Roll]

I currently have the K&N Typhoon intake, Stillen exhaust, Stillen headers and Bully Dog Power Pup (set at 2+ advance timing and premium tune). I'm not sure of the exact HP/TQ increase but i have noticed a significant difference.

[dangeris]

I'm running the Injen CAI with Racingline y-pipe and Fast Intentions Exhaust. I also have a Bullydog GT Tuner with a premium tune.

[mmx23z]

i have the injen intake, stillen header, magnaflow catback with the bullydog tune on premium with +2 timing!!

I have the Greddy Spectrum Elite cat back exhaust system which certainly gave me a good improvement on my turbo build.

hey QR, are you planning to make an exhaust video anytime soon???
id really love to here that spectrum elite on a QR/turbo

[Laxplaya!24]

You can always add a Stillen header which will give you gains as well.

Thanks for the advice. On stillen they say the header is not for highway use? why is this that doesnt really make sense to me. This may be a stupid question but im a noob haha

[PHENOMenalVinyl]

There are multiple intakes available. K&N and the Fujita intakes are the most popular from what I have seen on here. I have the Greddy Spectrum Elite cat back exhaust system which certainly gave me a good improvement on my turbo build.

I would suggest this combination:

- Fujita Air Intake
- Greddy Spectrum Elite Cat-Back Exhaust System (Blue tips are cool plus it passes inspection!). Sounds great, no highway drone noise AT ALL!
- Bully Dog Power Pup or Bully Dog GT Tuner - Run +2 degrees and 91 octane+ Premium Tune.

You can always add a Stillen header which will give you gains as well.

You will notice significant gains. I cannot tell you how much you will gain, but a lot of people would suggest 10-20hp, although it may vary.

this is the best of everything overall

- Fujita Air Intake
- Greddy Spectrum Elite Cat-Back Exhaust System (Blue tips are cool plus it passes inspection!). Sounds great, no highway drone noise AT ALL!
- Bully Dog Power Pup or Bully Dog GT Tuner - Run +2 degrees and 91 octane+ Premium Tune.

[PHENOMenalVinyl]

You can always add a Stillen header which will give you gains as well.

Thanks for the advice. On stillen they say the header is not for highway use? why is this that doesnt really make sense to me. This may be a stupid question but im a noob haha

just saw this

its because the headers technically are illegal in some states bc you wont pass emissions which is why some people made an adjustment just look up the how to that didlilros wrote

[dangeris]

Thanks for the advice. On stillen they say the header is not for highway use? why is this that doesnt really make sense to me. This may be a stupid question but im a noob haha

There's 2 parts to this answer:

1. because the header deletes one of the O2 sensors which will throw a CEL.
2. It's more or less a disclaimer for Stillen so they are not liable when you fail emissions testings because of point 1.

[D-Roll]

Thanks for the advice. On stillen they say the header is not for highway use? why is this that doesnt really make sense to me. This may be a stupid question but im a noob haha

There's 2 parts to this answer:

1. because the header deletes one of the O2 sensors which will throw a CEL.
2. It's more or less a disclaimer for Stillen so they are not liable when you fail emissions testings because of point 1.

This is correct. Stillen did design the header so you dont throw a CEL. Basically you are relocating the O2 sensor in the middle of the B-pipe to the end of it. Therefore the Stillen header eliminates the pre-cat.

[QR25DE]

i have the injen intake, stillen header, magnaflow catback with the bullydog tune on premium with +2 timing!!

I have the Greddy Spectrum Elite cat back exhaust system which certainly gave me a good improvement on my turbo build.

hey QR, are you planning to make an exhaust video anytime soon???
id really love to here that spectrum elite on a QR/turbo

Sure, I'll see if I can get one made soon. right now I have diarrhea