A shorter diff ratio is a pretty good mod.
You'll hear a lot of talk about a shorter diff ratio having an adverse impact on economy. However I'm finding the opposite to be true as the shorter ratio means you make better use of the higher gears.
Obviously on the freeway at 110 kph (legal limit) in 6th gear sitting on 2,300 RPM the car is gonna be drinking more but for around town driving I think the shorter ratio actually improves economy.
Just a thought. However it appears you do a lot of freeway miles so may not be worth it
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2005 BA MK2 FPV GT - 6 SPEED MANUAL , SILHOUETTE, SWISSVAX, SUNROOF, BILSTEIN AND LOVELLS, FACTORY GENUINE 19'S, X-FORCE STAINLESS QUAD CATBACK, ADVANCE HEADERS, 200 CPSI CATS, BLUEPOWER CAI, HERROD BREATHER KIT, 4:11 DIFF RATIO, MAL WOOD OPT 3+ CLUTCH, BILLET SHIFTER, MELLINGS 10227, NOW WITH REVERSE CAMERA/SENSORS, ALPINE SPEAKERS & SUB - CUSTOM TUNED TO 275 RWKW
NOW WITH A NEW ADDITION - 2017 MUSTANG V8 GT FASTBACK - , 6 SPEED AUTO IN PLATINUM WHITE,
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