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Bill's Pipes SA-4 Series Slip-On Exhaust
Bill's Pipes SA-4 Series Slip-On Exhaust

$319.99 - $339.99

Description See Also: 1 Review 3 Questions Fitment Part Numbers
Item #BPS000L

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1 Review
5 out of 5 stars
5 Star   1 4 Star   0 3 Star   0 2 Star   0 1 Star   0
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All Reviews
Cedar City, UT, USA
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
Best pipe!

Just got this for my Rmz450 by far the best pipe I have ever ran! Very pleased with bills! Would choose it over any other brand I have had (fmf ect)

3 Questions
Answered:   2
Not Yet:   1
Nate
Q: I have a 2012 yz450f would I need to change my fuel mapping if I put the bill's sa4 slip on, on my bike?
1 year 1 month ago
MotoSportExpert
MotoSport Staff Expert
1 year 1 month ago
A: Generally with a slip on exhaust you will not need a programmer. I would recommend installing the exhaust and riding the bike to see how it is running then tuning your bike from there if necessary.
Kurthfew
Q: Does this have a spark arrester?
1 year 3 months ago
holeshot40
Q: Would this slip on fit a fmf header?
Over 3 years ago
MotoSportExpert
Expert MotoSport Staff
Over 3 years ago
A: The Bill's Slip-on is made to fit over the stock header. So as long as the FMF header you use is the same diameter as stock and will work with a stock muffler then you will have no problem.
MotoSportExpert
MotoSport Staff Expert
Over 3 years ago
A: The Bill's Slip-on is made to go over the stock header so as long as the FMF header is the same diameter as stock, and will work with a stock muffler then you will have no problem.
Fitment
See all bikes that this part fits...
See Fitments
# Part Numbers
Product Variant Manufacturer Part #
Aluminum With Black Stainless Steel End Cap 41-H1507
Aluminum With Black Stainless Steel End Cap 41-H45011
Aluminum With Black Stainless Steel End Cap 41-H4503
Aluminum With Black Stainless Steel End Cap 41-H4504
Aluminum With Black Stainless Steel End Cap 41-H4505
Aluminum With Black Stainless Steel End Cap 41-H4506
Aluminum With Black Stainless Steel End Cap 41-K25014
Aluminum With Black Stainless Steel End Cap 41-K2504
Aluminum With Black Stainless Steel End Cap 41-K4509
Aluminum With Black Stainless Steel End Cap 41-KT2511
Aluminum With Black Stainless Steel End Cap 41-KT3511
Aluminum With Black Stainless Steel End Cap 41-KT4511
Aluminum With Black Stainless Steel End Cap 41-S25010
Aluminum With Black Stainless Steel End Cap 41-S2505
Aluminum With Black Stainless Steel End Cap 41-S2507
Aluminum With Black Stainless Steel End Cap 41-S45011
Aluminum With Black Stainless Steel End Cap 41-S4505
Aluminum With Black Stainless Steel End Cap 41-SDS4000
Aluminum With Black Stainless Steel End Cap 41-Y2507
Aluminum With Black Stainless Steel End Cap 41-Y4503
Aluminum With Black Stainless Steel End Cap 41-Y4510
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