Pro CircuitT-4 4-Stroke Exhaust System w/Headpipe - 4S90250
- Part #: 432007
- Manufacturer Part #: 4S90250
- MSRP Price: $499.95
- Our Price: $449.96
Overview of Pro Circuit T-4 4-Stroke Exhaust System w/Headpipe - 4S90250
- Designed to boost output throughout the powerband
- Fine-tune your power delivery by changing end caps (see T-4 Replacement End Caps under Exhaust Replacement Parts and Accessories)
- Lighter than stock
- Extruded 6063 aluminum silencer resists oxidation and features long-lasting packing material
- Quick access to the U.S.F.S. approved screen spark arrester through removable end cap tip
- 304 stainless steel head pipe, S-bend, inlet cap, one-piece exhaust flange, stand off and springs give works look, performance and durability
- This is a complete system that includes a head pipe
NOTE: Not all products are legal for sale or use on pollution controlled vehicles. Check your local laws and the manufacturers information
NOTE: There is no warranty on exhaust pipes and mufflers with regard to any discoloration. Discoloration (blueing) is the result of tuning characteristics, cam timing, carburetor jetting, overheating, etc., and is not caused by defective manufacturing. See the CHEMS/LUBES section in the back of this catalog for products that will help prevent or remove blueing.
NOTE: Installation of a new exhaust system may change your motorcycles fuel-air mixture requirements. Please consult the exhaust manufacturer directly with questions regarding any modifications that may need to be made during. or after, installing their product. If a jet kit or fuel processor is recommended, see the FUEL/INTAKE section
|Type||Complete System w/Spark Arrestor|
Specs for Pro Circuit T-4 4-Stroke Exhaust System w/Headpipe - 4S90250
|Type||Complete System w/Spark Arrestor|
Fitment for Pro Circuit T-4 4-Stroke Exhaust System w/Headpipe - 4S90250
Part 432007 fits the following machines
|1993 Suzuki DR250|
|1992 Suzuki DR250|
|1991 Suzuki DR250|
|1990 Suzuki DR250|
|1992 Suzuki DR250S|
|1991 Suzuki DR250S|
|1990 Suzuki DR250S|
|1999 Suzuki DR350|
|1998 Suzuki DR350|
|1997 Suzuki DR350|
|1996 Suzuki DR350|
|1994 Suzuki DR350|
|1993 Suzuki DR350|
|1992 Suzuki DR350|
|1991 Suzuki DR350|
|1990 Suzuki DR350|
|1993 Suzuki DR350S|
|1992 Suzuki DR350S|
|1991 Suzuki DR350S|
|1990 Suzuki DR350S|
Reviews for Pro Circuit T-4 4-Stroke Exhaust System w/Headpipe - 4S90250
I purchased this exhaust system a week ago, and I must say it's the best! I put this on my 2005 crf150f and the increase in horsepower and throttle response is 10x better! On a side note I did have to pry apart the rear mounting bracket a little bit. And also the pipe sounds really great......it's like night and day compared to the stock pipe......it's also much louder by at least 60% I don't think my neighbors like the sound haha.....bottom line get this for horsepower and throttle an sound increase you won't be disappointed!I would recommend this item to a friend.
Images for this Review:
It gave my KLX nice sound, quicker throttle response and better performance across the powerband. I dont think you can go wrong with Pro Circuit products.I would recommend this item to a friend.
2005 CRF 230F
This PC exhaust system is worth every penny. Sound & quality is beautiful. The sound is quiet thru loud depending if you are using the quiet insert that is supplied. The reason why I gave fitment 4 stars is because I had to pry the welded brackets on the muffler wider to go over the rubber grommets on the back subframe where the long bolt goes through.I would recommend this item to a friend.
Pro Circuit T-4 exhaust
Put this on a 2002 TTR 125. When the exhaust arrived I was a little nervous because it came in 2 pieces, the muffler and the exhaust pipe. I thought I would have to make some alterations to the mounting to get it to fit. But it mounted perfectly without any modifications to the mounting brackets. This system was added for extra airflow after we "swiss cheesed" the airbox and rejetted. Sounds real throaty and makes the 125 sound like its got some muscle. Also, it is noticeably lighter than the stock pipe. Kind of pricey, but our options were limited for the TTR and we needed more airflow thru the motor.I would recommend this item to a friend.
Fits great Sounds even better highly recommend this systemI would recommend this item to a friend.
Great pipe, lots of power
Bought this for a 2006 crf230f and it definitely increased power and has a great sound.I would recommend this item to a friend.
Great Performance Boost
I bought this pipe to increase performance as the stock exhaust was very restrictive. The new pipe bolted up easily to the machine, but was resting on the pull start handle. This was a problem that I needed to correct. I ended up having to heat up the pipe and bend it so it would not touch the handle. This did not go smoothly... For the money this kit cost, fitment should have been better. I also installed a jet kit at the same time which has the machine running perfect. Overall I am very pleased with the performance increase and construction quality of the kit.I would recommend this item to a friend.
Great exhaust for racing
It sounds and looks awesome. The only problem is it is so darn loud. Fit was perfect but it touched the clutch cable on my Z50 and I need to make a bracket to hold the cable off the header.I would recommend this item to a friend.
Instructions and Media for Pro Circuit T-4 4-Stroke Exhaust System w/Headpipe - 4S90250
|Instructions - PDF||Instructional PDF|