Originally Posted by crabman
Not exactly, long tube headers are usually going to be installed with high flows or test pipes and I'm pretty confident that is going to yield more than 25 in the mid range even before the tune. Those of us with S models don't get a free 40 HP in tuning and the options for gains are likely to remain few. Pullies, tune, headers, cats. Downstream from there is just sound and that is where most of the competition will be working.
F-Types will remain a rarity due to their cost and the existence of Corvettes and other strong competitors. The Pace on other hand is going to sell in much larger numbers, already is as I'm sure you know. It isn't hard to imagine Borla and the rest of the usual suspects having a go at it. Meanwhile the performance market will likely be left alone by the big names. I'm not trying to claim a business case one way or another but I would not consider the two markets similar. Significantly different volume, demographics, etc.
How long would you need the car?
Perhaps I should be more specific. When I say we have done a bunch of research, what I mean is that we extensively dyno tested long tube headers on a V6 FType, and on a V8 FType. We tested multiple tube diameters, and this was paired up with a sport catalytic converter.
On the V6 Cars, the net result was 20-25 Wheel Torque, within a narrow range of around 3000-4500RPM. We can and may put the parts into production, but my concern is that the cost to do so and the retail price point we would need bring them to market would be too high (likely circa $3000) to support that level of gain, especially when a portion of it is possibly attributable to the high flow cats. Trust me, I'd like to get them out there, we have probably close to $15,000 of cost in the development process but we aren't the sort of company that is willing to fudge some numbers and pump the stuff out there if we aren't confident in it.
And it's not to say that we won't release something, I just need to know that the business case is there.
For development work - to do a sport cat and exhaust, we generally plan on having the car for a week or so, and prepare the owner for a little wiggle room as well. Just in case for example, we need to order in a different exhaust tip, or have a flange laser-cut to pattern or something, and also to make sure we have our jigs set up and that the jigs are producing parts that fit to the car.