Fb0dy0nly

iTrader: (10)

Cant wait to get mine, they should be here end of the week or beginning of next week. woot!

havent driven my car since beginning of summer and I cant wait to get these on finally and drive it!

02TransAm/Batmobile

iTrader: (32)

In for pics of the merge. Or could you jus' answer this question: Is there a venturi spike or are the primaries cut off, then placed in the collector?

Sommer86

iTrader: (46)

What do Kook's collectors look like? And Texas Speed, what are your benefits over Kooks?

02TransAm/Batmobile

iTrader: (32)

Kooks have a quality venturi spike which is a spike created by the transition from the 4 primaries into the merge collector. I know this is anecdotal evidence and I'm not sure how much this translates to our application but Maryland Speed performed a dyno test measuring Kooks' headers for the 2010-2011 Camaro and the eBay Knock-offs. Both were 1 7/8's and both looked virtually identical on the outside but the main difference was the venturi spike. (Actually, the eBay headers had a poorly constructed venturi spike). On the same car, same day, the Kooks headers and eBay headers made the same peak power but under the curve the Kooks headers picked up 5HP/8TQ.

Sales2@Texas-speed

iTrader: (5)

That is correct, they are still aluminized. When we run out of those and get the stainless ones in, then they will start shipping stainless.

Sales2@Texas-speed

iTrader: (5)

Their orders are all shipping at the same time as ours!

Sales2@Texas-speed

iTrader: (5)

It is the same design collector as our older ceramic coated headers were. No spike.

Sommer86

iTrader: (46)

I knew about spikes, I just didn't realize the Kooks had one and if TSP's had come with one. But, for only a 5hp/8tq loss under the curve, i don't mind saving $500-ish bucks.

Cool, thanks!

Paul Bell

iTrader: (9)

In the back to back test above between the Kooks and ebay headers, both headers has collector spikes. The ebay header had a poorly constructed spike.

To really quantify the gains from having a spike, you'd need to do another test comparing the Kooks header to one without the spike, such as the TSP headers being discussed here.

I think you'll find the spike helps more than you think.

Sales2@Texas-speed

iTrader: (5)

If anybody wants to bring their favorite 4th Gen F-body header with a velocity spike down, we'll back to back engine dyno test it for everybody

We did do the test on our 2010 Camaro headers versus a competitor's 1 7/8" (same primary size as ours) header with a velocity spike on our Dynojet chassis dyno. It was a very popular brand, full stainless, and we used their X-pipe as well. I'd have to dig for the graphs, but I will tell you ours made about 2hp better at peak, and .5-1hp and ftlb better from the hit all the way up under the curve. Again, we did use their X-pipe as well, but this is a very popular company that everyone loves their product for the 2010+ cars! Now I'm ready to do the engine dyno test because we can eliminate the X-pipe variable and just swap headers

02TransAm/Batmobile

iTrader: (32)

Now that would be an awesome test! I always wanted to see, given the same primary size, how a slip-on merge collector compares to a merge collector with a velocity spike. However, couldn't you guys foot the bill? Consider it an investment. After all, if you can prove there is no or minimal gains of a velocity spike, that would mean an increase in demand for your headers.

Sales2@Texas-speed

iTrader: (5)

At some point we might. We're back-logged on R&D enough right now that unless someone brings a set for us to test in person, it might not be done for months and months though

99'CajunFirehawk157

iTrader: (57)

Matt will you guys post here when the Stainless ORYS will be available?
And just off the top of your head, any eta on those? I cant imagine buying one w/out the other in 304...fwiw.

02TransAm/Batmobile

iTrader: (32)

Then it makes your initial offer sound like a bluff.

Guitar

iTrader: (9)

Came in Friday!

Sales2@Texas-speed

iTrader: (5)

Tell you what, as long as you come down to witness it in person, I'll put aside all other engine dyno testing for that day just for this test. Deal?

We've got nothing to hide. We test everything we sell and know exactly the power our products make! Let me know when you're ready and I'll cover the cost of the competitor headers and all.

xX-Z28-Xx

iTrader: (4)

So jealous...

libertyforall1776

iTrader: (2)

That's too bad -- who would want stainless steel headers, but something lesser for their catted Y?

99'CajunFirehawk157

iTrader: (57)

Order placed for headers Matt, to zip 39466. PM sent too.

Paul Bell

iTrader: (9)

AGREED. When I (eventually) buy headers, it'll be headers & catted Y-pipe together. It'll be all stainless steel.

I'm very interested in the dyno results comparing headers with and without the merge spike.