Luis you know I'll have to check on that because off hand I do not know the weight of the car.

TYE: Presently as dyno'ed what you described is what is on the car. When I saw the Fabspeed twin small mufflers w/ individual tips I thought I could put that on instead of the stock rear center resonator. Certainly looks better. I discussed this w/ FVD (Germany) to see if I could run it. The long answer confused me and the short answer was I would probably lose power but it was not definite. So now I wait to see. I certainly am happy w/ the present set up, concerning power, sound and wt. savings. I also though the Fabspeed components would lose a few extra pounds.

Someone had asked about wheel weights (HRE vs Dymags). I believe it came out to 6 lbs. per wheel (fr. & rr.)

GT3Ranger...Juan

Juan,
Good results. Don’t minimize the Dymags because they don’t show a measurable HP increase on the Dyno. The best modification to improve real world performance (Acceleration, Turning and Braking) you can possibly do is to reduce unsprung weight (Wheel, tire, brake, hub and suspension weight etc.) As a matter of fact some professional race engineers that I respect tremendously because they have won major pro endurance events (Daytona, Sebring) equate the performance improvement of every pound of unsprung weight reduction to four pounds of overall weight reduction.
As Colin Chapman used to say: “To increase speed add lightness”.
Manny

+1 I agreee.

Juan,

When I saw your 384whp number I wanted to say I told you so, but it was good to see your car do these numbers and basically confirm numbers I have posted.

As I have seen on my now 15 dyno pulls (5 more than last time I posted results - I will have some more numbers and data shortly), the car will with reasonable intake temps (not south florida hot) and good gas put down stock 378+ type of numbers on a Dynojet and a Mustang. Your 384whp in above average hot temps likely equates to close to 390whp with lower intake temps that I'm seeing up here and I'm using 94 Canadian Octane + the FVD software which I think is worth about 3 to 5whp. So, I think your data (HP not torque) likely shows that either the headers or the 200 cell cats or some combo of both (i think it is the cats?) gives maybe another 5+whp in the highend that I can find for my car.

Thanks for posting

Paul

Thanks Juan, I wonder what exactly it would be in the smaller twin mufflers that would cause it to lose power, and I wonder if the Supersprint resonator we are just hearing about would be a better application, or if that would also lose power with the rest of the FVD pieces.

I don't no what dyno the German's are using, but the twin Maxflo mufflers constantly made power when tested.

I have proof.

Joey,

What type of dyno and what fuel type was used for the dyno?

Thanks

Paul

Paul the car was tested on a Dynojet running premium fuel.

damn...that number just seems low^^^...

Joey, did you guys achieve these gains with out any fuel or timing modifications done to the ecu????

From a straight mechanical stand point the FVD headers and elbow pipe appear to be a direct bolt on application w/ the Fabspeed twin rear center mufflers.
I am willing to spend the money and experiment. Mixing components may not be smart but "parts are parts". I would consider buying the Fabspeed and testing to determine for power changes (up or down) w/ dyno runs and evaluate the exhaust note.
This would be interesting and if it is a bust, well I would have learned something and wasted a few thousand bucks.
This should be investigated. Lets see what happens.

Cheers guys,
GT3Ranger...Juan

Or maybe you can work something out with Fabspeed if the addition of their mufflers in fact does result in a loss of power. If a company truly stands behind their product, I cant see there not being some type of return or mutually agreeable arrangement if the product does not at least make some improvement as claimed.

GT3Ranger: Fabspeed's Maxflo rear mufflers are designed to be interchangeable with stock and/or any other aftermarkermarket product. Accept no substitutes, only Fabspeed can deliver a high quality product that's simple to install, engineered to increase performance, and designed to work with any OEM style exhaust product.
TYE: If our dyno tests proved an increase in horsepower and torque with the Maxflo products, then why would a combination of two different manufacturers equal a loss in overall HP?

FVD makes their exhaust and they use their own tuning to match it. Who or what does Fabspeed use?

Fabspeed I see 2 connector pipes on both ends of your rear twin muffler set up and on my FVD set up there is one single elbow pipe from the cats into the rear center resonator. Therefore I see a mismatch. What can be done if I would still wish to try your components?

GT3Ranger...Juan