Yamaha R6 Forum: YZF-R6 Forums banner
1 - 7 of 7 Posts

·
Registered
Joined
·
14 Posts
I have a mjs performance header/midpipe and love it. Check him out @ mjsperformance.com I just sent in my stock headers with cat still attached and he modify its to a full racing header for cheap. I put a gytr slip on and its pretty loud, shoots a flame pretty easily espically after wrappin it out (like wheelies and down shifting) He has videos on youtube as well. (i did my research before jumping off the deep end) He says that he gained 7.1 hp with his full system. I am gettin ready to get my on a dyno as soon as I get my PCIII. Hope this helped and good luck.
 

·
Get on it
Joined
·
321 Posts
i was reading that the mjs is hollow all the way. that is not good on an engine. it will be extremely loud also. the factory slip on will not create enough backpressure for it so i know the 2 bros will not. an engine needs backpressure to a certain degree to run at full strength and get life out of it. the other mid pipes are ok to a certain degree. a full system is the way to go. i know they are expensive but it will be cheaper than buying an exhaust and an engine.
 

·
Registered
Joined
·
14 Posts
Yes I know exactly what you are talking about. I put my stock slip on back on while I was researching what to use for a slip on. MJS offers a full system and it is a stock muffler he just repacks or rebuilds it. I was louder than hell with the stock muffler, it popped alot. It wasn't like backfire but like a shitty ******* truck with to big of flowmaster tips on it. It would just pow pow pow espically when I down shifted. That is why I went with the gytr, it has a smaller outlet on it than stock (hense more back pressure) and pretty much all other aftermarket exhausts. It was a toss up b/w gytr, akaprovic, and yoshi. My pocket book doesn't go deep so I went with the gytr. Lots of people have this setup, it elimanated the popping and dampend the noise alot. I asked Mike (owner of MJS) and he said the 2 bros will work but it will be loud, like not street legal loud. I wish you had the opposite problem, already had headers and just needed a good slip on. Anyways sorry to the long reply and good luck.
 

·
Sex on 2 Wheels
Joined
·
428 Posts
i was reading that the mjs is hollow all the way. that is not good on an engine. it will be extremely loud also. the factory slip on will not create enough backpressure for it so i know the 2 bros will not. an engine needs backpressure to a certain degree to run at full strength and get life out of it. the other mid pipes are ok to a certain degree. a full system is the way to go. i know they are expensive but it will be cheaper than buying an exhaust and an engine.
That's why you buy a slip-on that's an actual muffler and get a PCIII!! I've got a Termi GP on mine and it's perfect. Not too loud, doesn't shoot flames or backfire. What do you think a full system exhaust is?? It's a header connected to a muffler. The header is freeflowing and the only baffling is in the slip-on. Same principle, different price tag :werd
 
1 - 7 of 7 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top