- NEW!
Help answer this question below.
Have to??? No, but are U doing this for "Performance"??? Do U know if this Engine was designed to utilize "Back
Pressure" or not??? If the "Air Flow" is increased by changing the "Pipes" & the Engine then needs a "Less Restrictive Filter" to do this, answer is Yes! The more Air Flow, the better the Engine Performance. But, not always in 2 Cycle Engines that need the "Back Pressure". John
What is a pipe plug on a Harley-Davidson?
by Answerbag Staff on August 6th, 2010
| 1 person likes this
What percent of a Harley is actually made in America?
by Answerbag Staff on August 5th, 2010
| 1 person likes this
Who makes a lock for a Harley seat?
by Answerbag Staff on August 1st, 2010
| 1 person likes this
What does a frozen chicken look like on a Harley-Davidson?
by Running, Fall Up on December 13th, 2011
| 1 person likes this
What would a chicken's Harley-Davidson sound like?
by Running, Fall Up on December 2nd, 2011
| 1 person likes this
You're reading I have a 2007 FXDL and I want to put new mufflers ( Vance & Hines Big Shots) Do I really have to change air filter and have the bike retuned for this application?
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