PMPerformance

Still looking for the right used deal to put longtubes on my GS.

I just missed out on a decent deal on kooks sadly.
I found a heavily used set of LG’s and a basically brand new ARH setup I am contemplating.

Are any of these known to be more problematic than others for install and fitment?
I have had plenty of sets of kooks and know what to expect. But unsure of how the fitment is on the other guys.
I hear ARH can be more problematic with needing the frame rails clearanced

Advise before I drop the money?

DrKrieger

Love my Belanger Custom Tri-Y long tube headers.

PMPerformance

their website doesn’t even look like they sell Corvette parts, nor did I see any info on the cars I clicked that they do.

I Appreciate the plug for something you like, but this was not on topic to
my question.

jimmymack

ARH has NO fitment issues. I've had a few different setups with ARH and never had a problem. YMMV

PMPerformance

from some videos I have seen, z06 may not suffer from this but the steel chassis cars might?
Its a thing though apparently as I research it more.

VetteVinnie

You could always call and talk to Lou directly. https://www.corvetteforum.com/forums...installed.html

StayinStock

The only ones I've ever heard of having fitment issues are the Texas Speed. Can't imagine you'd have much problem with Kooks or AHR. I just cerakoted a set of AHRs for a member here. Super nice pieces.

Spaceme1117

Not true. They many times are too close to the frame on the passenger side and usually touch the transmission line also on the passenger side.

From ARH header install instructions: It's not the car, it's the headers.

Kooks do not have fitment problems and fit perfect.

I had ARH on my 2011 C6 GS, removed them and installed Kooks.

PMPerformance

I appreciate the link, but I’m not trying to call a business blind to ask something they should have on their website.
If nothing is on the site and no prices listed, this means they are going to take long to make and be expensive. Calling will likely just be a story about how great they are and how difficult they are to make justifying the price.

i tend to try my hardest to stay away from that game.
plus my post stated I was looking at used deals

leadfart

I'm running ARH 17/8", on my ZR1. I bought them used off another ZR1 and had them coated. They fit great, but I had a speed shop install them. I don't know if they had any fitment issues, they didn't mention any. I know a lot of high horsepower ZR1's running them. Good luck.

PMPerformance

have you been under the car? If you had someone else install them and not sure if they had to clearance them, it’s hard to take words on fitment from you.
Some questions I have though:
are zr1’s the alum chassis like the z06?
have you been under the car to confirm the frame rails were not banged in, not cutting or ribbon on the trans?

64drvr

I ran a set of LG's on a C5 and really did not like their slip fit connection with respect to preventing leaks especially with multiple exhaust system installs. I also had a set of Kooks on a C6Z06 and had fantastic results with them, never leaking with multiple exhaust system installs. I highly recommend Kooks and have always seen very positive feedback on ARH also.

PMPerformance

thank you for this feedback.
my experience with slip fit vs ball/socket has been similar.

Geoff13IOM6GS

I just finished installing a set of 1 7/8 Kooks headers, xpipe and cats, 3inch version on a 2013 GS - fit like a glove - highly recommend

VetteVinnie

I ran Kooks on my ZR1. It's too bad that deal fell through. They were fantastic. And, yes, Z06 and ZR1 share the same Dana Technologies frame.

StayinStock

Oh shoot, I lied lol, I thought yours were AHR, glad to hear you got them in though!

TripleB5832

I have Kooks long tubes, green cats, and x-pipe on my Maggie supercharged C6 GS. Love them. No fitment issues with Kooks in my experience.

DeudeMann

My 2008 C6 LS3 came with Kooks headers and no-cat x-pipe mid pipe. I spent some time under the car this week doing some servicing and had a good look at the Kooks equipment. They are quite nice, well made, and no leaking or fitment issues I can see anywhere.

They are quite expensive but from what I can see they are quality pieces and sound mean, especially with the NPP system opened up. The cruising drone and WOT sound with the NPP open is brutally loud. With NPP closed the car is quite nice. If I had aggressive non-NPP mufflers on the back I would definitely want some resonators or the like to calm down the cruise drone.

leadfart

Yes, I've been under the car. I do all my own oil changes and tire and wheel changes. No banged up headers or frame. No issues whatsoever, don't take it from me, you asked, I gave you my experience.

PMPerformance

that is why you did not have an issue.
ARH clearly states the alum frame cars are not an issue with clearance. Only steel frame cars for some reason