Had the Fabspeed GT420 Installed in the Spyder...

Dr. G · 2016-07-08 02:59:11

I thought all that stuff was the 450 hp package? Differences between the 450 and 420 packages are the race vs sport headers and the tune to maximize those changes. Race headers have no cats! There is no way cats are worth 30hp in an NA car....:confused: Dyno proven :) Trust me we were not expecting to see 400whp potential out of the GT4, but we ran the car a dozen times while tweaking the tune (duplicated on two other GT4s in house) and it surprised all of us! GT450 Package https://cimg6.ibsrv.net/gimg/rennlist.com-vbulletin/1280x750/80-porsche_cayman_gt4_gt400_performance_package_dyno_56896_1455913982_1280_1280_cfa1bc05a324bc44a0f234bcef8507f45e331817.jpg GT420 Package (Ray's GT4 results) https://cimg9.ibsrv.net/gimg/rennlist.com-vbulletin/1996x1170/80-80_porsche_cayman_gt4_street_package_dyno_af41842c8bbd37d748a3ad56b81e5a781566d5a9_fff7b97c2fb607cdc5acb73030e6cdedede62916.jpg

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07-08-2016, 12:52 PM

#16

John@Fabspeed

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Quote:

Originally Posted by Jamie140

I thought all that stuff was the 450 hp package?

Quote:

Originally Posted by digitalrurouni

Differences between the 450 and 420 packages are the race vs sport headers and the tune to maximize those changes. Race headers have no cats!

Quote:

Originally Posted by Jenner

There is no way cats are worth 30hp in an NA car....

Dyno proven

Trust me we were not expecting to see 400whp potential out of the GT4, but we ran the car a dozen times while tweaking the tune (duplicated on two other GT4s in house) and it surprised all of us!

GT450 Package

GT420 Package (Ray's GT4 results)

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