Best modification?

JDSwan87

Black Swamp Thing
Joined
Feb 9, 2014
Location
Michigan near Toledo
TDI
2001 Jetta TDI, 5 speed Lagoon Blue Metallic(sold); 2005 Jetta TDI Wagon auto
What is the best modification you have made to improve your diesel engine? Why?
This is a very broad question... You need to be more specific... Are you looking for performance mods? Fuel economy mods? Durability/reliability mods? Also, the general consensus here is before you change the factory stock configurations in any way you need to get the vehicle up to spec on maintenance items. Tires, brakes, alignment, TIMING BELT, etc...
 

Mike_04GolfTDI

Top Post Dawg
Joined
Nov 19, 2003
Location
Richmond, BC, Canada
TDI
Mine: 2019 Golf R DSG, Wife's: 2015 Golf Comfortline TDI
Performance tune, and a clutch that can handle the power without slipping.

That is the easiest thing you can do to improve performance. Best "bang-for-the-buck" as they say.
 
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