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Pro Circuit - 4-stroke T-4 Silencer w/Spark Arrester - Yamaha

Product Code: PCT4SLSAY
$424.95 $382.45 Sale
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  • Description
  • Reviews
  • Customer Photos

Pro Circuit - T-4 Silencer

  • Improved power delivery and exhaust note
  • Body is made from lightweight 6061 T-6 brushed aluminum
  • Tunable end caps allow fine-tuning of power delivery for different types of riding and terrain
  • Top-quality construction assures long life
  • High-quality stainless steel and aluminum construction eliminates rust problems
  • Machined-aluminum end caps
  • Silencers include wire-meshed spark arrestors that can be removed for close-course racing; silencer is completely rebuildable
  • Steel Allen head screws make repacking and easy task
  • Exclusive E-glass pillow packing
  • This system includes the silencer only
  • Shapes and sizes will vary depending upon make and model of bike

I recommend this product


Although this product as advertised on this website says it is only for a 09-04' TTR 225 it actually fits an XT 225 which is what i put it on. Pro has the exact pipe and has it advertised for both the TTR and the XT 225. However, BTO sports had this pipe for a lot cheaper than pro cycle. It was extremely easy to attach to my XT probably all of 7 minutes. It is quite a bit louder than the stock pipe, but not too loud, actually its perfect. It did increase my horsepower, not significantly, but enough to notice a difference. I also added a new K and N airfilter. Great product, would recommend to anyone seeking one.




great product


nice sound, good power maker








Whyalla South Australia



The product is good.


New south whales Australia


top unit


This muffler is easy to fit, sounds great although if you are riding enduro you might want to put the silencer baffle in as it gets on the nerves after a while. It is easy to tune and sharpens up throttle resp whilst improving bottom and mid range power. Jetting is required but no big deal. If you are running std muffler change to the Pro Cir,T-4 its worth the money.


Perth West Aust


Pro Circuit - 4-stroke T-4 Silencer w/Spark Arrester - Yamaha

4.4 5