Underseat K&N

triroketman

Supercharged
Joined
Aug 14, 2006
Messages
204
Location
Mount Carmel Illinois
Presently I have a cat bypass with stock pipes and the 12 minute tune worked well. I was going to replace the air cleaner with the underseat K&N. My question is "will the 12 minute tune be sufficient to integrate the K&N into the system, or should I by a Tuneboy".
Dave
06 Classic R&W
 
I think you would be fine, but you will be running pretty lean. You might get some more popping on decel or afterfiring. I think it would be a good excuse to get a Tuneboy though.
 
The underseat K&N filter works well with stock pipes, better with the TOR's WITH the TOR-compatible tune and better yet with the Mad Dogs, with the same TOR tune (the best seat-of-the-pants combination I have come up with in over 3 years of ownership).

As far as the cat bypass is concerned, I have yet to see a factory-specified tune, regardless of either aftermarket cans or air filter or BOTH, that is suitable and durable beyond 12'.

But I have no TuneBoy direct experience. Best. Jamie
 
If you have a stock seat, there is a plastic manifold under it which routes air into the under seat filter. Get rid of it.
 
I see the recommendation for removing the "snorkel" from the base of the seat. Would you mind explaining why? Is it due to using the K&N filter or should you remove it even if you have the stock filter?
 
Bravo, a first that I'm aware of as announced on this site: An underseat K&N The mass volume of air restricted by the "snorkel" could very likely reduce the natural draw with the underseat K&N. Though air density drawn from outside the influences of engine heat will increase HP. A dyno test with and without the snorkel during cool weather and another with summer heat would tell the difference.

I mounted a security system atop the battery so a removal of the snorkel was necessary. This summer's performance, seat of the pants measurement, with tell me whether it was a good move.
 
So... two years later - Was removal of the snorkel / manifold a good idea?

Anyone else anything to add - As you have no doubt guessed, I am considering removing it.
 
You must log in or register to reply here.

Similar threads

Seat reshaping
2
Replies
10
Views
3K
Perth dave
Corbin seat problem
Replies
5
Views
1K
TURBO200R4
Keyless Ignition Complete
Replies
3
Views
961
Anthony5900
Changing original frame for a custom one - can I keep old UK reg?
Replies
3
Views
1K
RazMan
K&N filter fitment
2
Replies
19
Views
4K
Dr.D
Menu
Log in
Register