managerman

Is there a louder/different exhaust note with the mid headers...? can you leave everthing stock behind the headers? or does it make sense to install new x-pipe with cats?

-M

Matt26

Any before and after videos? Still curious about the sound increase (I like loud when NPP is open)

PARANORMAL

My feedback from the ride back home. I installed the Range Technology chip so my car is always on 8 cyl mode and I have NPP exhaust which now stays open all the time. The sound is a much deeper tone and noticeably louder, did not really open her up because of the heavy traffic. I' am happy with the sound. Maybe next year, I may add the X- pipe, I' ll test out the new sound for a while before I mod again.

SteveDoten@ARH

Thanks for the orders!!

arcticZ51

Sorry for the newb question but what is the difference between mid length and long tube headers?

TDH

The midlength headers are shorter and allow you to install without significantly changing the position of the O2 bungs. By doing this you can install without getting a CEL light or having to have custom tuning.

The downside is you give up some power, especially if you do significant mods.

The midrange is supposedly better on a stock car. I am getting a set of this ordered today as I have been talking to Nick and I am going to try to put them on my convertible over Christmas holiday.

SteveDoten@ARH

You beat me to it, that's the exact premise that Nick had implemented last year in the development of the ARH C7 mids.

RussM05

I was an early purchaser of the ARH mid-length headers with cats.

Installation was not difficult but not easy either. I took two of us about 5 hours using a lift. The drivers side went in from the bottom but the other side went in from the top. Others have said both go in from the bottom, but we couldn't do it. We had to remove the fuse block, starter, dry sump oil lines to the pan, and valve cover on the passengers side get it in. Fit was excellent when done.

There was a CEL initially which ARH addressed with new cats and O2 extentions. No CEL now.

The ARH cats are very open compared to stock. The stock cats looked like a solid block before looking close. Then you see lots and lots of tiny holes. About 500 per square inch.

With NPP, there is no increase in sound at cruise but that changes at WOT. Lot louder according to the guys driving behind me. I had Dynatech long headers on my 2005 which had a deeper tone. I find the ARH mid-length headers to have a slightly sour tone at WOT compared to the long tubes.

I haven't put the car on a dyno yet but feel more mid-range power.

One thing I recommend is get them ceramic coated. I really helps to reduce underhood heat which is especially needed here in Texas during the summer.

SteveDoten@ARH

Thank You Dasilva Motorsports for the C7 ARH mid order.

SteveDoten@ARH

Spring is here, any other ARH C7 mids out there??

tyho

Yup. Had Manny install mine last year 2015 z51 m7. Love em. Louder then stock but not overly loud, and I can feel the difference. No codes. I also have the high flow cats and a Halltech carbon cai. Both of these mods made a significant difference. Manny will be installing B & B bullets next week. I will keep all informed as to the results.

Seannyc

No TQ gain. Numbers ?

snakepit

Will the Mid-length void the warranty.

RussM05

Not directly. Only if the warranty claim is directly caused by the headers or faulty install of the headers.

Read up on the Magnuson–Moss Warranty Act that covers warranty claims.

SteveDoten@ARH

Dasilva in Toronto is a great group to work with.

The TQ gains were similar.

I haven't seen anything regarding warranty concerns in the 100's that have been installed.

Seannyc

What's the hp and tq numbers vs the long tubes cuz I here people gaining like the same Hp your sayin the mid lengths make

C7Lugnuts

Have you had to use that Act? Thanks in advance.

RussM05

No. But I believe the dealers and manufacturers all follow what the law says. I have a friend install mid-length headers and brought the car in for a minor electrical problem under the hood and it was covered.

C7Lugnuts

Thanks Russ.

Jack Be Quick Racing

Shopping mid-length prices and installation service now.