Weapon-R 4-2-1 Header and Cold air extension dyno'd
 

We finally found a donor 5 speed 2008 XB to do our final dyno and test fit before production. The vehicle had a Injen cold air. First of here is a couple pictures of the Cold Air extension, and the header.
https://i143.photobucket.com/albums/...7/CIMG3587.jpg
The Cold air extension will be available for our Secret Weapon intake.

Here is a picture of the Weapon-R Header installed.
https://i143.photobucket.com/albums/...7/CIMG3608.jpg

This dyno is Our Secret Weapon Cold air intake compared to the Injen Cold air intake.
3.1HP and 4.4TQ over the Injen.
https://i143.photobucket.com/albums/...jenvsSWCAI.jpg

This dyno is with our header installed and with the Secret Weapon intake.
https://i143.photobucket.com/albums/...HeaderTest.jpg
7.8HP 4.2TQ

Now here is where we wanted to show that the 2008 Scion XB exhaust is very restrictive. As well know there is a large Scuba tank under the vehicle for a resonator.
What we did was run the header with an open exhaust system. Since this vehicle didnt have an exhaust we couldnt test with an exhaust.

Here are our results.
https://i143.photobucket.com/albums/...erTestOpen.jpg

12HP and 4.7TQ. This is at peak levels. But notice the large increase in TQ all across the TQ band.

We will have a small LIMITED Qty. of the headers coming in soon. So we will be posting a sale for those LIMITED ones.

Chris Wanstrath
Weapon-R.com

interesting, good job! Id really like to see how much HP a good exhaust without the scuba tank would make. I wonder what it would sound like. Make a midpipe/scuba replacement pipe and Im sure it will sell like hotcakes...
-nick

yep that'll be very nice if someone would make one but i guess you'll need to do custom work on it. the gains looks great especially will only bolts on part now can't wait till it become available

It would sound like ___ with a midpipe. The scuba tank really helps resonate the exhaust sound.

Nice gains, how much will the header be? Wouldn't mind picking one up.

so i guess the s-pipe installed?

i gotta climb underneath and look at the pipe again.....

i had the strup header with a full 2.5 exhaust from the header back it was a big diff over stock but not

do you have a video clip?
do you have a cat ?

search 08 xb exhaust on you tube i had bo resonator just a high flow cat and trd axle back

i've check but not sure which one is your's. if you have a link that'll be great and thanx in advance

here is all my vid

http://youtube.com/watch?v=l_2dd4PLqOw

yay cant wait!!!

looks nice

Wow! Awesome work!! CAn't wait