Contour Enthusiasts Group Archives Forums Modifications Duratec Performance ? About Borla

Just FYI on that article.. the Bassani was tested with resonator tips IN (pretty sure). GreenSVT (?) showed a few years ago that the Bassini gained about 60% more power with tips OUT (average power 4-7K RPM increased from 3 to about 7 FWHP). Really flow well at high RPM. Borla was slightly better at low end tourque in previous dynos but down about 3-4 HP above 4K c/w Bassani. BUT the Bassani is loud - had to add a 3" resonator which dropped about 1-2 HP on top but gained some low end torque - like a Borla!

Thats the scoop, both are good systems just slight differences. Brullen really about the same thing except 2.5" pipe better for 3L or forced induction. On 2.5L gains SAME as 2.25" pipe (also shown with SCA and CTA 2.5" systems).