6 to 7 percent price savings may be offset by 6 to 7 percent worse fuel economy, and certainly worse performance. There have been testimonials to this effect posted here throughout the years.
"I can't stop apexing"

2000 S4 :: Nogaro Blue :: 6-spd :: AWE RSK04 :: AP Racing 13" 4-pots
STaSIS Tracksports 550f/600r + 19mm rear sway bar :: APR Bipipe
RS4 ICs :: Forge BPVs :: Autospeed DPs :: Borla :: Aquamist 1s
UUC 40% short shifter w/spacer mod :: AWE center vent boost guage
Lightweight flywheel :: 18x8 Ronal LZ's :: 235/40-18 Toyo T1R's
2002 allroad :: Atlas Grey :: Tip :: 245/50-17 Dunlop SP5000's
Looking for tires? See My review of all of the tires I've had on my S4
Need info? See Everything anyone needs to know about their S4
Help our troops protect their heads: Donate to Operation Helmet

Rest In Peace Matthew Ammon a/k/a O.W. Kenobi. May the Force be with you as you keep on apexing.
Read his funniest post here.