I'm Stumped!! Exhaust fighting

[JAAY]

I have a 996 engine.. 3.4ltr. That is why I am messing with this topic.

[stephen wilson]

Understood, but it's installed in a Boxter correct? The chassis dictates the exhaust as much as the engine.

[j.fro]

We've all seen dyno results from stock and different aftermarket exhausts. The stocker really isn't a bad performer. What's the max gain on an aftermarket??? 5HP?
I think the real gain in performance is weight loss. I've got a Borla on my car now, and I weighed the difference between it and stock...23 lbs. Pull the spare and that's another 25 or so lbs.
Anyone out there driven a 2600 lb Spec Boxster?? Those things are effing quick! and with a 2.5 no less!!

[JAAY]

Agreed the weight is what makes these things dealable... Supposedly 2.5's are 300lbs less than the S due to sound deadening and such stuff...

Stephen.

The motor being in a different chassis does not change the performance capabilities of the motor. What I am saying is that on a 996 the exhaust does not work this way. It does not have the same back pressure. I have had every exhaust under the sun on the car. Some may have been better performers than stock BUT I can't talk in my car on the highway with the drone. I just wish I could use one of the aftermarkets with my 3.4 I know that I would be able to tune some more power out of it. I have the car running great at 12.5 :1 right now. I have some FVD bypass pipes on the way soon too. I will retune after I get them on. I think that there is just some good power to be had if you have the tuning capabilities and a flow through exhaust especially on a 3.4..

[stephen wilson]

Yeah, it's a shame it costs so much to dyno test/tune each combination, that's the ony way to get a difinitive answer. Good luck!