[clubhead]

Just got back from the dyno today. Results as follows :

Horsepower (at the wheels)
Base run with Dansk headers : 224.9bhp @ 6,520rpm
Run with Dansk Sports Cat : 231.2bhp @ 6,498rpm
Gain : 6.3bhp at about 6,500rpm

Torque (at the wheels)
Base run with Dansk headers : 180.7ft/lb @ 5,816rpm
Run with Dansk Sports Cat : 186.08ft/lb@ 5,827rpm
Gain : 5.38ft/lb at about 5,800rpm

The fuel used for all dyno is 100 Octane as this is available from most pumps locally.

I've got the dyno graph but gotta find a scanner to scan it in. Basically, the horsepower and torque gain was throughout the rpm range with the exception of 3,000 - 3,500rpm where the bhp was about the same as before.

I'm attaching some before/after comparison photos of the setup and cat itself.

Points to note for installation :

1) You will require 2 U joints (left and right cat) for the connection between the cat and the muffler. The original connectors can't be used. Reason being the muffler pipe now slots into the cat pipe (cat pipe diameter is bigger when previously, its the same as before).

2) The left cat piping will hit against the anti roll bar during hard acceleration. During installation on the hoist, you will NOT see them touching each other. However, you will need to bend the muffler bracket to create more clearance between the anti-roll bar and the cat piping. Right is ok. I had to go back on the hoist twice to adjust the clearance.

3) You will need additional 2 screws per cat as the screws on the original cat are welded onto the cat piping. If you noticed in the first picture. the Dansk Sports Cat does not have any screws welded on. Actually, I would expect Dansk to have supplied this part as it is a bolt on part afterall.

The weights are :

Stock Cat : 8.82lbs
Dansk Cat : 6.61lbs
So there is some savings in weight.

BUT....

Stock Headers : 4.4lbs
Dansk Headers : 7.72lbs!

But I guess the better flow and equal length pipes more than make up for the increased weight.

That's it. I'll probably do the Evo filter only next week.