2019 Bullitt headers or driveshaft?

[bsenbay]

Hello,

I have just added these following items to my cart on steeda for upgrades on my 2019 Bullitt and would like some advice on if they are good mods and worth it or if there is something better:

1) Steeda S550 Mustang IRS Subframe Alignment Kit All (2015-2019)
2) Steeda S550 Differential Bushing Bolt Upgrade Kit - 12.9 Hardware (2015-2019)
3) Steeda S550 Mustang Adjustable Differential Bushing Insert System - Urethane (2015-2019 GT, Ecoboost, V6)
4) Steeda S550 Mustang IRS Subframe Bushing Support System All (2015-2019)
5) Steeda S550 Mustang Billet Aluminum Vertical Links with Delrin Bushings All (2015-2019)
6) Steeda S550 Mustang MagneRide Sport Lowering Springs (2015-2019)
7) Steeda Mustang Clutch Spring Assist and Spring Perch Kit (2015-2019)
8) Steeda S550 Mustang Heavy Duty Braided Clutch Line (2015-2019 GT/EcoBoost)
9) Steeda S550 Mustang Hood Strut Kit All (2015-2019)
10) Steeda S550 Mustang 1" Hubcentric Billet Aluminum Wheel Spacer - Pair (2015-2019)
11) MGW Race Spec Short Throw Shifter
12) Corsa Extreme Catbacks
13) Palm Beach Dyno nGauge Naturally Aspirated PBD Tune (91 Octane main fuel, E85 secondary fuel)

Now I am having a very hard time deciding between a QA1 carbon fiber driveshaft or
American Racing Headers 1-3/4" x 3" with cats (Direct connection for Corsa). I am unable to do both unfortunately so Im not sure which one to do. Any recommendations?

I will also install a whipple supercharger by the end of this year. Thank you!!!!

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[80FoxCoupe]

I say headers. Go 1 7/8 and be done.

 

[bsenbay]

80FoxCoupe, won't I loose power with the 1 7/8 headers? Aren't they for 1000 HP plus cars?

 

[80FoxCoupe]

Power loss? No. You mentioned doing a whipple later, so why buy twice?

 

[bluebeastsrt]

17/8s will make power on an N/A car. The drive shaft will most likely gain you no performance. And will most likely vibrate more than stock.

 

[bsenbay]

80FoxCoupe, should I get the QA1 carbon fiber driveshaft first and then get the 1 7/8 headers when I get the whipple then?

 

[el-guapin]

17/8s will make power on an N/A car. The drive shaft will most likely gain you no performance. And will most likely vibrate more than stock.

^^ This!

 

[boB]

According to Car & Driver the PP2 runs 2:53 at VIR and corners at 1.13 G, without any of the items you are considering. The question then is: are any of these necessary?
Except the hood struts, I like those!

 

[Jetnoise]

I’d go whipper first and see what needs addressing by how you use and drive your car.
Half shafts seem to go hand in hand.
You could always just buy your whole cart too ;)

 

[DuRsT]

I’ve had the carbon fiber driveshaft.

Not worth it IMO, the driveshaft cannot even come close to the gains you would get from headers. It’s easy to forget it’s there...headers not so much.

 

[80FoxCoupe]

80FoxCoupe, should I get the QA1 carbon fiber driveshaft first and then get the 1 7/8 headers when I get the whipple then?

Get the headers and skip the driveshaft all together.

 

[Bluelightning]

Get the headers. Stock drive shaft holds up just fine to the Whipple.

 

[GreenS550]

If you are keeping the car a long time any mods OK. But, the suspension parts except for the alignment kit and BMR's Cradle Bushing lockout kit will make cabin noise.

You have Magneride? Why ruin in with the suspension mods? Unless you want a harder ride, noisier, etc. I've had every one of those mods.

I've had both driveshafts: aluminum and carbon fiber. They make more cabin noise because the heavy stock DS removed some of the tunnel noise. Ford designed all this to make it work together.

Keep your money and just do the blower. Get a compentent shop to tune it. Make them show you the AFR and be anal about it. Because once it's tuned your warranty will be void for powertrain issues. I do believe the Bullitt would be awesome with a blower. Forget the rest.

These cars DO NOT need to be lowered. I like Steeda a lot. But, you do not need to lower your car.

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