AR Design Porsche 996TT 304SS Long Tube Equal Length Exhaust Manifolds:
$2,510.07

AR Design's long-tube equal length 996TT headers are finally available! Hand crafted from high grade heavy-wall 304 stainless here in the USA, they not only dramatically increase mid-range and top end power, they also help eliminate turbo lag!

Features:

100% Hand-Built in the USA from premum SCH10 304SS
1/2" thick head + turbo flanges, waterjet-cut from 304SS
100% TIG welded, argon backpurged for high purity+strength.
Carefully designed equal length runners.
Smooth merge collectors.
Hand-ported post welding to insure maximum flow!
All flanges are decked flat for a perfect seal every time - no pesky leaks!
Significant Increase in mid-range and top end power, and a reduction in turbo-lag.
Lifetime warranty from manufacturing defects to original owner.
Ceramic coating is available, please inquire!

(sold as a pair)


PM or Call us For More Info

 

beautiful work. do you have any before/after dynos and/or durametric logs of boost vs rpm to support your claim of reduced turbo lag? similar previous designs all yielded to increased lag which is why they are not very popular and no longer in production.

 

Actually BBi had a very similar design that reduced lag and made power. Would love to see some dynos.

 

Still no dyno logs, would love to give someone a great deal on these if they were willing to help us out, send us a PM if your interested!

 

$2500 for a "significant decrease" in HP? Why would anybody buy them?

 

Thanks for pointing that out FIXED!

 

i am well aware of who made them and yes BBi was one of the companies. my previous statement on increased lag still stands and i have seen real dynos of those ( from other companies)

how can you claim significant increases with no dynos and no logs

 

Here is a real boost response graph of when BBi's Barcode headers were tested on my car back to back vs the stock 996 headers.

 

We had a third party do all the dyno testing as we do not have a 996 shop car (yet). Said third party reported impressive gains - and then managed to lose all the data with a laptop hard drive crash, before sending them to us. They also lost all intercooler testing data, and exhaust testing data. Very frustrating to say the least, as we had at least $10k in R+D into the car. I am working on securing a new tester for said parts, and will post results as soon as I get 'em back!

 

To the top!

 

Still looking for someone to provide us with date for a screaming deal on a set of these!

 

Bump!

 

To The Top!

 

Contact us TODAY for end-of-year BLOWOUT SALE pricing!!!

 

Always looking for reasons to build more of these. We'd love to see some dyno results - and would hook somebody up to make this happen!