Onyx LS1

iTrader: (5)

Any pics or input is appreciated. From what I have read it seems that Kooks clearance is hard to beat. Also any input on the Kooks y-pipe, QTP seems to have some fitment issues.

Gloveperson

iTrader: (9)

For ground clearance you should be fine with both. Don't have either, but I have heard that when I was shopping.

I have never found a y-pipe that fit perfectly for anything though.

Onyx LS1

iTrader: (5)

Truth. I don't think I'm going to buy a new one. I'll just modify the one MTI made for my Dynatechs.

These headers seem to both be excellent quality, I'm getting whichever is cheaper.

Mcduffys

iTrader: (2)

Both QTP's and Kook's have the same design and clearance. Just purchase which ever is cheaper!

code4

iTrader: (30)

I have QTP's, and I don't see how they can be beat for fitment. They tuck up under the car as tight as they can go without hitting anything under acceleration. This pic isn't at the right angle but it's all I have from my intall pics.

Durien

i run the QTP... i had no fitment issues at all..they fit just right.. i have heard that those that have fitment issues is mostly because they cant get the car off the ground high enough to work comfortably... you cant beat that true merge collector.. thats one of the reasons i got it..
here is a pic of how much clearance i get from the ground with my QTPs ... cant you see its a few feet

777

iTrader: (21)

a few feet...haha

777

iTrader: (21)

code4...where do you live...your car is all scraped up and stuff like crazy

Onyx LS1

iTrader: (5)

I went ahead and got the QTPs w/ the merge collector. I'll get some dyno numbers with my Dynatech stepped headers with merge collectors, then with the 1 7/8 QTPs with merge collectors.

Gloveperson

iTrader: (9)

Excellent

Racehead

I got the 1 3/4 QTP's with the HVMC option and I love them for their perfect fitment. I haven't dyno'd them yet, but seat of the pants they feel stronger. Just have your own Y made up at a good exhaust shop, you'll be happier with the results.

2ScoopsTa

i got the QTP headers.. very good clearance and my car is lowered..

LS1LT1

iTrader: (16)

QTPs
www.quicktimeperformance.com

LawmanSS

iTrader: (19)

Here's are a couple shots of my Kooks...they tuck in very nicely:

https://ls1tech.com/forums/attachmen...chmentid=13599

https://ls1tech.com/forums/attachmen...chmentid=13597

777

iTrader: (21)

you can barely even see them very nice