Take off the DPF and you won't be able to see out the driveway when you back up......the DPF is so good at removing soot, it allows the engineers to focus on in-cylinder performance and fuel economy. The DPF doesn't effect fuel economy per se...... And the tuners have a better chance of screwing up peak cylinder pressures and causing early engine failures than it's worth.

IMHO...enjoy what you have, and put your cash into speaker upgrades......or better yet.....buy gold!

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HP gets you to speed, Torque keeps you there !

1928 Model A Coupe
1957 MGA SOLD
1994 MBZ SL320
2007 Acura RL
2010 X5d 11/13 PCD