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Open pipes (Atom Bombs) back to Stage 1

6K views 12 replies 10 participants last post by  bubba 
#1 ·
About 500 miles after installing the Stage 1's I went to a set of modified pipes, the "Atom Bomb 2 1/4"". I really liked the extra sound and convinced myself the bike was running as well if not better than with the Stage 1 pipes.

Fast forward 3000 miles and a 1200 mile ride up to the Georgia mountains and back in some blistering heat and high loads (80+ mph up and through the mountains) I realized that what sounds good on main street becomes quite boring mile after mile on a long trip.

So, I swapped back the Stage 1 pipes and had a bit of an epiphany, the bike was not running right with the open pipes. In just 100 miles with the Stage 1 pipes on I noticed a smoother running bike, more willing to pull to redline with better low and midrange roll on power not to mention the ability to actually hear the radio on a setting lower than 15!

Kevinx can probably concur based on what he saw with the RPW pipes on a dyno, if you use a pipe with a more open design than the stage 1 you will need a fuel controller and even then my guess is it's iffy that you will get to the same level of midrange power the stage 1 package delivers.

For those who claim the stage 1 isn't worth the money I'm here to tell you it's worth every penny and for those who think they have a good running bike with aftermarket pipes I think I can honestly say you are fooling yourself to justify the money you spent.

The stage 1's will stay and the Atom Bombs will be for sale very shortly.
 
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#2 ·
I agree... I really like the Stage 1. Sure it can be a little louder but you take away the enjoyment of listening to music while you ride. It's all about you and how you enjoy your bike not to impress everyone..WELL it maybe for some... I like to listen to music so the Stage 1 is perfect. I would like to see and test a 2 into 1 exhaust and get a little more low endor see what the numbers are and how it sound. Maybe one day they will make it.
 
#4 ·
Bigmex said:
I agree... I really like the Stage 1. Sure it can be a little louder but you take away the enjoyment of listening to music while you ride. It's all about you and how you enjoy your bike not to impress everyone..WELL it maybe for some... I like to listen to music so the Stage 1 is perfect. I would like to see and test a 2 into 1 exhaust and get a little more low endor see what the numbers are and how it sound. Maybe one day they will make it.
Actually, what we currently have with he stock headpipe design is a 2 into 1 into 2. The torque benefits usually derived from a 2 into 1 are already dialed into the stock setup. At least that's IMHO :)
 
#6 ·
My stage one pipes are just right for what I want out of the bike. It runs well, it's not too loud to hear the music, and those loud pipes can be very irritating on a long ride. Sorry INFIDEL, you can't have mine.
 
#11 ·

Not a surprised by your results..
Stage 1 pipeswith theuse ofa stage 1 download is most likely the best combo. I would expect that your Atombombs were too free flowing for the amount of fuel (not enough)you were adding with onlythe stage 1 download.
Atombomb owners should stay with the stock download and add fuel with the VFCIII or a PWC. I can tell you that this setup is no slouch. The VFCIII is alsoa nice way to go in preparation for the mighty VM1 Cams!!
WW
 
#12 ·
"wjw930" Thanks much for your post. It was exactly the kind of information I was looking for before deciding to get Stage 1 or Atoms for my Cross Country. I had 'em on my Kingpin and am again going to now get them on my XC. "elooker" - That's quite an outstanding collection you have there with the Victory and assortment of incredible Italian motorbikes! I also own a Moto Guzzi; a V11 Sport. Seriously thought about a Stelvio but it didn't fit right for the wife and I two up. Gotta love the sporty Italian bikes for zipping around the city and the crazy comfortable Victory for the open country roads, eh?
 
#13 ·
I will keep my RPW's. Like them!
 
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