perhaps the additional few hp could be obtained from the the 300rpm increase from 7200 to 7500?

 

Yeah that is fair enough. I tend to discount those as being 'gains', rather unlocking what is already there. Either way it is a fair point.

 

I see your point and totally agree. And may I say that I'm very satisfied with the RSC cats!

 

Good, I like happy customers!

 

I too am very happy with the RSC cats and the great thing we can all agree on is that they provide a rather substantial gain in power regardless.

Stuart-you now have at least 4-5 before after results...all positive! Seems like so long ago I was asking!

Cret-I have not had a tune after adding the cats....combining all of my mods has me at an AFR of 12 pretty much across the board. Its still a little richer than some say is optimum (12.5), but much better than where I was at (10).

Perhaps headers would drop it to 12.5? Hmmmm

 

Watch this Space

 

I made 31.4ho @ wheels with JUST ECU, so it's already been proven 100% real world gains. Yes I did bump up an additional 300 rpm which gave an additional 6hp compared to stock redline.

Like I said 25+ is easy if done by the right tuner. Supposedly there is even more on the table, but I sold my car before more R&D could be done. Luckily I will be getting my new Aston soon

 

Those are some unbelievable gains!

 

Detomaso, did you find any other vendor besides BR for the headers? Any idea how many hours of labor for the installation?

 

Hi cret-BR is the only one I know now. Benefits are they are designed by the guy who helped develop our engines. Negatives are cost and they do not have a stateside presence...yet.

I have been very happy with RSC and believe Stuart may be hinting in on something (see above), but will let him answer that. Either way I think dynos would be a must (pre/post headers)....the stock ones appear to be very restrictive.

in terms of install, it looks to be a lot of work. Stuart, any thoughts here?

 

I am indeed hinting at something which will be available worldwide fairly soon, and at a much more affordable price than any current offerings. There will be dynos.

Install wise, it is a level or two up from installing the cats. Getting a good seal on the cylinder head is paramount. Having said that, it is not going to be a huge amount of labour to change them out because they are pretty accessible. Rick @ DMS told me before they went under that he could get headers changed in 1.5 hours/side but they were pretty quick. maybe 4/5 hours labour total?

 

PLEASE STU!!!!! The Aston V8 market is in desperate need of good aftermarket headers. If you could develop a set for around the $2500 level you would Monopolize the market, please do it.

Having seen the headers off the car they are restrictive, although I wouldn't say "very". They are still a tubular design and not a log style manifold. With that said there are lots of obstructions, and the "camel-toe" dual semi-circle design is not power friendly. Not to mention, the stock manifolds are also heavier than an aftermarket 4-1 design, vs the stock 4-2-1 tri-Y.

Gains should be on the order of 25-30hp past 5000rpm on top of the cats.

Make it happen Stu!! We are all rooting for you

 

All well underway. $2500 is not reasonable, not if you are going to build them properly and use a merge collector etc. My target price is $3500.00 but I am sure we will be announcing a group buy when they are launched.

 

Hey Stu, I checked out your website and your Ferrari F430 exhaust headers are virtually identical in size & shape therefore the amount of material & labor is essentially the same. Your F430 headers are $2499 directly on your website. Obviously it can be done for $2499 by your company as you already have a similar product out for Ferraris (which are usually most expensive when it comes to modifications.).

The headers won't sell nearly as well at $3500 vs. $2500. Plus at that price point you could sell a combo pack for the headers & cats for $4500-$4999.

Just being realistic ...

 

While I appreciate that your intentions are good, you really don't have any insight into the design or R&D process. Pricing a product is not simply a question of how much it costs to build, but also the development cost versus the size of the market and sell through rate. I will definitely be offering an initial group buy, but I can confirm with near 100% certainty that the RRP on thes will be around $3500.00 Compared to the other offering currently on the market at just under $6000 I feel that is a pretty competitive price.