Pro Circuit T-4R GP Complete Exhaust

Pro Circuit T-4R GP Complete Exhaust
Pro Circuit T-4R GP Complete Exhaust

$701.99 $779.99
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  • Description
  • 5 Reviews
  • 11 Questions
  • Fitment
Description Item #PRC000M

Pro Circuit has numerous championship victories to their credit in the motorcycle and ATV industry because of their amazing performance, durability and style. The Pro Circuit T-4R GP Complete Exhaust is the same performance exhaust that the Pro Circuit factory race team uses, as well as factory Suzuki and Kawasaki, but made from stainless steel for maximum value. Pro Circuit developed the T-4R GP complete exhaust system to deliver improved throttle response and increase horsepower throughout the RPM range. As the T-4R GP Complete Exhaust system has been designed and constructed for race performance, it does not include a spark arrestor.

  • Top-of-the-line performance and power.
  • T-4R features stainless steel construction.
  • Tapered headpipe for better overall power from bottom to top end.
  • Specially designed mounting bracket for increased strength and durability.
  • Internal design reduces noise output; meets 94dB AMA and FIM sound limits.
  • Welded end cap design.
  • Silencer and end cap graphics.

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5 Reviews
5.0 out of 5 stars
5 Star   5 4 Star   0 3 Star   0 2 Star   0 1 Star   0
Sucio
California
That factory crispy sound!!!

this systemnis awesome!!! Sounds like a factory bike and the response is much more crispy I would say, smooth power all the way up!!! Definitely satisfied

Dinojdm
Verified Purchaser
08 crf 250 r

Went with a single system on a 08 crf 250r, easy fit, smooth and crisp power, nice tone love this system.

SteeleMX
Top 500 Contributor
Michigan
Durability   Ease of Installation   Performance   Power   Style  
Great Exhaust System For KX450F

Great sounding exhaust and noticeable gains throughout the rpm range. Easy install. has taken allot of abuse and has not dented or broke at all. Packing has held up great also

Pro Circuit T-4R GP Complete Exhaust
FlyRaCeR
Top 50 Contributor
West Virginia
Durability   Ease of Installation   Performance   Power   Style  
Fantastic Exhaust

Ive had a few rides on this exhaust so far and i love it. after being frustrated from constantly getting dents out of my titanium fmf factory 4.1, i decided to try the stainless steel pro circuit out. i don't notice any difference in weight and the power is so much better. its also a lot quieter that the fmf and was a million times easier to install. and of coarse, it looks great

MXRacer97
Top 250 Contributor
Santa Fe, NM
Durability   Ease of Installation   Performance   Power   Style  
Mellow low end, Monster top end

I bought this exhaust for my 09 CRF450R. It's absolutely amazing how it totally changed the powerband. It took away a couple horses from the low end and added a few to the top end. Very smooth long powerband with a ton of top end. I don't like 450's with massive low end hit, so for me this pipe makes the CRF450R very easy to ride.


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11 Questions
Answered:   11
Not Yet:   0
Willbo
Q: If I'm mounting this on a 07 crf250r, I'll need to rejet the bike. Anyone have an idea what jets to change out? Even pointing in the right direction?
2 years 2 months ago
Not really educated on carbs and which jets to change out etc.
MotoSportRyanT
MotoSport Staff Expert
2 years 2 months ago Location: Portland, OR, USA
A: Yes, You will likely need to re-jet your bike after installing this exhaust system. There is not a specific setting I could give you for jetting your bike. It would really depend on your location (altitude/temperature) and how your bike is running with the current jetting. Jetting can be very tricky, there isn't one setting that will work everywhere with every bike. I would recommend taking your bike to a motorcycle with a service department to have it properly jetted.
Tater
Location: Pennsylvania, USA
Q: Fit kx250f 2011?
2 years 5 months ago
Hello, My friend is running this exhaust on his 09 KX250F but motosport says it wont fit that. It also says it wont fit a 2011. But I know I have already swapped with him and it was perfect fitment no doubt the correct fit. So could this be a mixup in motosport system? please let me know so I can place my order. Thank You Very MUCH
MotoSportRyanT
MotoSport Staff Expert
2 years 5 months ago Location: Portland, OR, USA
A: At one time this exhaust was available for your bike but it is not no longer made for your 2011 Kawasaki KX250F. Pro Circuit has replaced this system with the T-6 Complete Exhaust for your bike. Here is a link to the T-6: Pro Circuit T-6 Complete Exhaust
mpduett
Location: St. Augustine FL
Q: Can u put a spark arrestor in it?
Over 6 years ago
Drewski
MotoSport Staff
Over 6 years ago Location: P+RTLAND
A: No, this exhaust is specifically for closed course racing. The end cap is welded on so there is no way to put a spark arrestor in it.
LOWElife
Q: 2008?
Over 6 years ago
this pipe won't fit on a 2008 kx450f?
MotoMoo2
Expert MotoSport Staff
Over 6 years ago Location: Portland
A: This particular exhaust system will not. If filter your search by selecting your bike it will bring up the version that fits.
cordless
Location: florida
Q: T-4R vs Ti-4R?
Over 6 years ago
is there a proformance diference between the t-4r and the ti-4r? or is it just that one is stainless and one is titanium?
sikorski
Over 6 years ago
A: Just the different metals
LOWElife
Q: ...?
Over 6 years ago
would this system be louder then a stock pipe on a 2008 yz250f?
badasskid101
Top 250 Contributor
Over 6 years ago Location: buckeye ,az
A: with this pipe u do not need to worry bout the sound the pipe is one loud sun of a female dog fer sher
LOWElife
Q: Power.?
Over 6 years ago
which pipe would have more all around powergains, the FMF 4.1 with megabomb.or the pro-circuit T-4R GP???
badasskid101
Top 250 Contributor
Over 6 years ago Location: buckeye ,az
A: pro ciurut fer sher
crf250rider144
Top 500 Contributor
Over 6 years ago Location: schererville IN
A: um fmf. trust me the megabomb is nuts
LOWElife
Q: Dirtbike?
Over 6 years ago
will this pipe fit on a 2010 wr250f? how many db would it be if it did?
hondarob
Expert MotoSport Staff
Over 6 years ago
A: dont offer a full system for that bike only a sli on
motoboy114
Location: nh
Q: Do i have to switch my number plates?
Over 6 years ago
i have dual exhaust ,will the single exhaust fit in the dual number plate?
FORREST119
Over 6 years ago Location: Port Aransas, TX
A: Yes, it fits fine. No tire rub or plastic burning.
Josh9
Q: Does this pipe have a spark arrestor?
Over 6 years ago
james718
MotoSport Staff Expert
Over 6 years ago Location: Portland, OR
A: This exhaust does not include a spark arrestor.
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