Gibson Headers & Magnaflow Cats (4.0 SOHC)

[Greg_DonWindsor]

Recently received my Gibson stainless headers and Magnaflow cat setup for my truck. They've been installed but I'm away for work at the moment, pre-install picture below:

Will report on my thoughts on the performance gains upon my return to civilization. I have been eagerly awaiting this mod for quite some time now, feels good to finally have 'em on there!

 

[Dweeberman]

Do you happen to have the parts# for the gibson headers? When you get in town, please post a video (if able to) of the truck running. I am really tempted to order some of these and replace the cats as well with some Magnaflows. Thank you in advance!

-Chuck

 

[Greg_DonWindsor]

Gibson Part # is GP219S.
http://www.summitracing.com/parts/gib-gp219s

I will definitely post a video upon my return next week, sometime around Wednesday the 24th.

 

[Flash]

Do you reckon you'll be able to do some timed runs and maybe some fuel economy checks before you fit these bad boys?
You know, for science.

 

[Greg_DonWindsor]

I have times runs saved in my programmer from beforehand, and fuel mileage data from before as well. In Alberta my 0-60 averages around 8.6s, and I usually get around 22mpg hwy. I have a 5000km road trip coming up as I'm moving back to eastern Canada, so that will provide some good fuel economy data.

 

[Greg_DonWindsor]

Video finally!

 

[Greg_DonWindsor]

Fuel mileage before install:
21.5 mpg hwy, at 105km/h cruise, temperature of 28Celsius, using Shell 91 octane, as determined by actual fuel consumed at the pump, not using the onboard computer.

0-60mph time (0-96kmh) before install: 8.4s at 3600ft above sea level (Calgary, AB), measured with Superchips Cortex onboard tuner plugged into OBD2 port.

Fuel mileage after install:
23.7mpg hwy, at 105km/h cruise, temperature of 31Celsius, using Shell 91 octane, as determined by actual fuel consumed, not onboard computer.

0-60mph (0-96kmh) after install: 7.9s at 3600ft above sea level (Calgary, AB), measured with Superchips Cortex onboard tuner.

Note: The best fuel economy I have ever attained with my truck was at a cruising speed of 90km/h (56mph) was 24.6mpg, at a cooler temperature of 18 degrees celsius at an elevation of 1900ft above sea level (Lac La Biche, AB). I believe that when I return back to eastern Canada, where I'm originally from, which is only several hundred feet above sea level, and thus with denser, cooler air, I will achieve even better fuel mileage.