Do I remap my EFI after new Exhaust?
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From Our Friends at DynoJet:
One big question is about re-mapping after changing the exhaust. Some say do it, other’s say it’s not necessary. More does than do not. Do I need to remap if I change aftermarket exhaust for another aftermarket exhaust? The work has been done.
Why do it again?
To get the most performance out of your bike remapping the fuel injection is a must. With just a setup of pipes installed, it is not imperative to remap the fuel curve as it will not run lean enough to cause any damage. If you were to purchase an exhaust that is similar in size, shape, volume, and design then remapping the fuel injection may not be necessary. But if you go from a set of slip-ons to a 2:1 full system remapping will be necessary.
Related Video:
EFI Buyers Guide and Exhaust Reviews and InstallsHave more questions? Check out the Tags below and our Harley Tips: A-Z index page to find some answers.
Would I have to remap after instaing new fuel pump that's inside my gas tank on a 2000 Harley davidson electric glide ultra classic flhtcu 96cc I just put a new efi fuel pump in my gas tank and I was wondering if I need to remap for the new submersible efi fuel pump and I need to go on a very much needed ride but I've been working on her for about five months and after I put the new fuel pump on her she fires up but the the rpms went high so I shut her down what would you recommend me to do to her
I went from Stock Pipes on my 2009 HD Dyna Super Glide to Vance and Hines Shorty Pipes. Do I need to Remap my EFI?
How About adding a new intake with a K&N filter. Do I really need to add a $400.00 tuner also?
i have a 2010 harley streetglide with stage 1 kit ans vance and hinces long radius pipes. i would like to install stock header pipes back on and run fishtail pipes. will i have a problem with this.
KInda new to owning a Harley but been around Bikes and Stuff All my Life . I wqnt to be able to do the work and ill need help from time to time and some good insight.
I have a 2013 harley ultra classic with a 103 eng. I want to remove my stock exhaust and install a complete 4 inch reinhart exhaust from the motor back is it necessary to do a efi mapping?
I have a 2014 softail slim i put a short set of LA custom drags on bike we after 2 years it screwed up my front valve and both pistons i had motor rebuilt, my question is if i use AR cones do i need baffles or should i just change to another exhaust
If u have 2012 softail slim and want to remove factory slip ones, can u then baffle the straight factory pipe that is left on the bike ? And which baffles would work best? Thank asking for the sake of knowledge had a friend ask me and hell I wanna know to!!
I'm going to purchase vance & hines downsweep pipes for my 2018 Harley Lowrider.What type of air filter shoud I upgrade to ?
I took the poor mans way and gutted my stock slip on muffler. Didn't change intake or pipes and it is all stock. Do I need to remap my injection?? It is a 2010 roadglide.