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Doped R15

July 6, 2010 by Bike India Team Leave a Comment

Mulund lad, Gaurav custom builds an exhaust system for the YZF-R15.Adhish Alawani finds out if it performs better

Yamaha introduced the YZF-R15 with the intention of acquainting Indian bikers with hardcore performance. No doubt, the Japanese company successfully defined track performance with the R15 in India. However, most costumers in the country are going to use the bike in cities and for sport touring on highways. Like a trademark Yamaha race bike, the R15 has its power band in the higher revs, more precisely over 7500rpm. Riding the bike in such high revs is not practical on a daily basis in town. The R15 definitely feels a lot sluggish from the bottom end to the midrange making it a chore for tackling traffic.

Gaurav, an avid BIKE India reader and a hardcore sports touring fan, decided to modify his R15 so that it would deliver a better midrange performance. To start the project, he made a new exhaust system for his YZF-R15. Obviously, he was not keen on making just a new free flow canister. Gaurav decided to engineer the complete exhaust system which included the pipe as well as the end can.

Getting help from some local mechanics for the labour work, Gaurav managed to make an exhaust system for his bike which he felt was good enough to kill the stock R15 in straight line acceleration as well as top speed. So we decided to hook up our performance testing equipment on his modified bike and gauge its performance against the stock R15.

Looking at the exhaust, you can immediately make out that this one is a bit smaller than the stock exhaust. However, it has the same cap on it that is found on the stock one making it look more familiar to a layman’s eye. Leaving aside the looks, I decided to do a couple of performance runs on the bike. The second run itself gave a 0-60km/h timing of 4.5 seconds. Just a new exhaust system has trimmed off more than over half a second in the 0-60km/h acceleration run. Even the 0-100km/h run showed us that the modified R15 managed the sprint in 12.5 seconds as against 13.2 seconds of the stock bike. As far as top speed is concerned, the bike recorded a top whack of 134km/h on the equipment. A slightly longer straight with lesser traffic to bother about would have raised the top speed further is what we felt looking at the few more revs to go in the top gear.

This rise in performance of the R15 can be experienced from around 5000rpm unlike the stock bike which comes alive just after 7500rpm. The midrange of the bike was much stronger than the stock R15 which I am sure will make a positive difference for city riding. Also, the sound note from the free flow system is louder than the stock one yet much better and quieter than the other locally made exhaust systems.

 

This exhaust system for your R15 can be bought at a humble price of Rs 9000 (includes the pipe and the canister) Contact: +91 9819003637

 

m.salvi@nextgenpublishing.net'

Bike India Team – who has written 984 posts on Bike India.


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