997.1 X51 Carbon Airbox
For SaleEngine - Intake/Fuel
Aug 3, 2021, 02:27 AM | Replies: 6 | Views: 4008
Rennlist Member
Join Date: Sep 2020
Posts: 78
-
Price
$3,700
- Location Sacramento, CA, 95864, USA
- Condition Used
- Compatibility
| Make | Model | Year |
|---|---|---|
| Porsche | 911 | 2005 - 2008 |
Description:
This is a rare opportunity to own a piece of 997.1 factory Porsche performance. There were not very many X51 997.1 911s and a limited amount of the airboxes were produced. I already have another X51 Airbox and no longer need two. This airbox does have two very small superficial imperfections which are photographed. $3700
Thread Starter
Rennlist Member
Joined: Sep 2020
Posts: 78
Likes: 1
From: California
I have the other x51 box on my C2S, just need the X51 intake coupler, which Porsche still sells for around $60. I also have a GT3 TB and IPD Plenum, a reducer would likely work for the stock diameter TB side. The maf wiring does reach, but you can buy a 12" or 24" extension and it's much cleaner routing it behind the box.
Last edited by 68fbody; Aug 3, 2021 at 08:48 PM.
Rennlist Member
Joined: Feb 2020
Posts: 455
Likes: 379
From: Wagontown, PA
I'm not trying to sabotage this for sale post. But there is a very critical issue you need to be aware of after the x51 airbox is installed. The pipe diameter where the maf sensor is inserted is different from the regular airbox. Running stock or off the shelf ECU tune with x51 airbox will cause the car to run lean throughout almost the entire power band. See link below for the related post:
https://rennlist.com/forums/997-foru...l#post10434602
https://rennlist.com/forums/997-foru...l#post10434602
Last edited by J.Tan; Aug 3, 2021 at 09:26 AM.
