aFe Power Twisted Steel Shorty Headers for 2011-2022 Dodge Durango(48-38029-T) 3103 5" V-band inlet with a

5" V-band inlet with a tapered

Below is a chart showing the free revving of a stock BRZ equipped with a stock pulley and then a GrimmSpeed pulley

We're talkingdriveablehorsepower too

T1S-F08 street

so finding a perfect balance requires a detailed understanding of the intended application

aFe Power Twisted Steel Shorty Headers for 2011-2022 Dodge Durango(48-38029-T) 3103 5" V-band inlet with aTwisted Steel 1 5 8 IN to 2 1 4 IN 304 Stainless Headers w Titanium Coat Finish. This system produced gains of up to +6 HP and +7 lbs. x Ft. TQ., as measured on our in house dyno. This system is constructed of 1 5 8 IN mandrel bent 304 stainless steel tubing for maximum strength and durability. A combination of Factory style laser cut and machined flanges are used for a secure leak free seal. Utilizing factory style flanges this system is designed to