Thinking about getting aftermarket headers

[AntMan530]

I want to upgrade the headers in my sentra se-r. Does anyone know if itll waste more gas if I do? And well my car be louder? or idle louder because of the bigger piping?

 

[KokomoGST]

Your car MAY actually get quieter but most likely it will get a tad louder if you did not already install a catback system and high-flow catalytic converter.

It will not waste more gas unless you put your foot to the floor all the time. You'll use less gas to accelerate "normally" and generally will get better gas mileage.

 

[ElFenix]

With the header, CAI and exhaust the Spec V has been transformed. Throttle response is extremely better. The revs come up really quickly and hitting the rev limiter has become a bigger issue than it was before. The car simply races to redline. The more power modifications we add, the more we feel in need of 500-800 more RPM in the top end. It is a pity that no aftermarket ECU is available for the Spec V as of this writing.

The car feels a lot peppier, and it revs up/redlines very quickly. We can feel more power and torque throughout the RPM range. Acceleration in 4th, 5th, and 6th speed is noticeably quicker without having to downshift. Furthermore, I have driven the car for a week and did not notice any degradation in fuel economy.

One of our main concerns was the engine/exhaust sound after the header install. We have heard from many Spec V owners that their car sounded very raspy after installing a header (other than AEBS). When the car was started, and to our surprise, it sounded almost like normal! At higher RPM it gets as loud as the sound of the secondary intake runners when open.

nissan performance mag

 

[JeffreyLebowski]

Originally posted by: AntMan530
I want to upgrade the headers in my sentra se-r. Does anyone know if itll waste more gas if I do? And well my car be louder? or idle louder because of the bigger piping?

Just a nit pick, but on an inline engine like the 4 banger in there, it is header not headers.

You're fuel economy may increase, but not by much, you'r HP will go up do to less resitrctions to the exhaust.

 

[whiteboy81]

Originally posted by: JeffreyLebowski

Originally posted by: AntMan530
I want to upgrade the headers in my sentra se-r. Does anyone know if itll waste more gas if I do? And well my car be louder? or idle louder because of the bigger piping?

Just a nit pick, but on an inline engine like the 4 banger in there, it is header not headers.

You're fuel economy may increase, but not by much, you'r HP will go up do to less resitrctions to the exhaust.

Not to nit pick, but it's 'due' to less 'restrictions', not do to less resitrcttions....

 

[ElFenix]

Originally posted by: whiteboy81

Originally posted by: JeffreyLebowski
Just a nit pick, but on an inline engine like the 4 banger in there, it is header not headers.

You're fuel economy may increase, but not by much, you'r HP will go up do to less resitrctions to the exhaust.

Not to nit pick, but it's 'due' to less 'restrictions', not do to less resitrcttions....

gramatically pwned!

 

Originally posted by: ElFenix

Originally posted by: whiteboy81

Originally posted by: JeffreyLebowski
Just a nit pick, but on an inline engine like the 4 banger in there, it is header not headers.

You're fuel economy may increase, but not by much, you'r HP will go up do to less resitrctions to the exhaust.

Not to nit pick, but it's 'due' to less 'restrictions', not do to less resitrcttions....

gramatically pwned!

Tack on that it should be "your" and not "you're".
😉

 

[zCypher]

Let us know how it goes! 🙂

 

[JulesMaximus]

Originally posted by: ElFenix

Originally posted by: whiteboy81

Originally posted by: JeffreyLebowski
Just a nit pick, but on an inline engine like the 4 banger in there, it is header not headers.

You're fuel economy may increase, but not by much, you'r HP will go up do to less resitrctions to the exhaust.

Not to nit pick, but it's 'due' to less 'restrictions', not do to less resitrcttions....

gramatically pwned!

Just a nit pick, but it should be Your fuel economy, not you're fuel economy. You're is like saying you are fuel economy. This makes no sense. What's more, you did this twice in the same paragraph and then you said "HP will go up do to less restriction" that should be due to less restriction, not do to less restriction.

 

[JulesMaximus]

BTW-To the OP, you might notice more noise. I installed aftermarket shorty headers on a '94 Mustang GT I used to own and it gave the engine a much throatier sound and it definitely increased power output. I had already done a cat back Flowmaster exhaust so the headers really helped out.

Edit-I don't think it did much if anything for fuel economy though.