z0vette

Hi guys,

Looking for American racing headers for my bro's C7, dealer offered us different sizes of these headers that made it very hard to choose the best set.
We were looking at the 1.78 long tube headers. But it seams that they offer them in full length and mid length!
Please advice

0Ron@Vengeance Racing

The long tubes are available in 1 3/4" and 1 7/8" primary. The mid lengths are 1 3/4" primary only.

The mid length header is for the guy who doesn't plan to extensively modify his C7 and will be happy with a cold air and headers. You will see VERY nice gains in low end torque and power with these. The mid lengths retain your factory H pipe/secondary cats as well making them more cost effective.

The long tube systems are more for the guy looking for maximum performance gains as well as someone who will likely modify his engine further... IE supercharger/cam kit etc...

Hope this helps a bit.

SilversledC7

Ron,
Thanks for the input.

Also from my research, the mid-lengths are easier to snake up into the engine bay and require less floor clearance for those DIY'ers who are putting their cars on jack stands. Would you say this is correct?

0Ron@Vengeance Racing

If you are performing the install on jack stands the mid lengths will be a bit easier to get under the car and into position. If you are on a lift the long tubes literally fall into place.

adamgl

Long tubes all the way. Great by themselves or fully modded. Leaving power on the table with mids.

Matt26

Hey Ron,

Any input on the sound difference between the mids and LT?

Are the mids noticeably quieter than the LT?

0Apex Chase

The length and diameter of the primaries will effect tone but will not have any real impact on volume. Eliminating the stock cats is what gets you the extra volume.

Matt26

That is the reason I am curious about it since the mid-lengths replace 1 set of cats with high flow, but leave the stock rear set in place.

0Ron@Vengeance Racing

We noticed a deeper tone when testing the mid lengths. The exhaust was SLIGHTLY less audible and I do attribute this to having the OE secondary cats in place.

z0vette

Thank you ron for the valuable info, we are planing to go with heads and cam next month. So shall we go with the long full length and off road x-pipe for now? Will it be a good idea if we install it without the heads and cam for now (hp gain wise)

0Ron@Vengeance Racing

If you are going heads/cam definitely go 1 7/8" long tubes... Catted Vs non catted is up to you, but we lost zero HP when we installed our Catted X pipe..

You will see nice gains with the long tubes even with stock heads/cam. I have a thread in the tech forum somewhere showing a stock A6 C7 Vs tuned Vs ARH long tubes Vs ARH long tubes with tune... It picked up power everywhere

Blown-C7

Hey Ron,

I am going with a supercharger on our C7, and wonder if I go with the long tubes what power gains I can expect? Also, is there anyway to retain the stock cats for noise reduction, or do recommend anything else since that is a big concern for me....want as minimal increase in volume as possible.