Love my HMF Swamp quiet series. I think I read they changed the name though.. It's not too much louder than stock , is WAY lighter , sounds much deeper tone , and does increase airflow. It is Alum also , so rust is not a issue.
Be sure to add a fuel controller if you change the exhaust/muffler. More exhaust flow means a leaner air/fuel mixture which may result in damage. The mixture is lean already with the stock exhaust.
Love my HMF Swamp quiet series. I think I read they changed the name though.. It's not too much louder than stock , is WAY lighter , sounds much deeper tone , and does increase airflow. It is Alum also , so rust is not a issue.
If you go with HMF, they'll ship a controller which has the basic parameters 'dialed in', as I understand it.Also if it’s just a slip on?
Adding a fuel controller is too much for me as I don’t think I can set the parameters right.
I have just read that if I make modifications like the air box lid (which I just made today) I might need to fine tune it... Should I go back to the stock lid?
These things are running lean stock. A safe lean condition, but lean all the same.Also if it’s just a slip on?
Adding a fuel controller is too much for me as I don’t think I can set the parameters right.
I have just read that if I make modifications like the air box lid (which I just made today) I might need to fine tune it... Should I go back to the stock lid?
Thanks for your help!
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I 100% agree with everyone's advice to purchase a tuner. I run one , and it was by far the best performance enhancement I made. Buy the tuner FIRST , then save up for the pipe. I agree with dezz about the cover as well.
I know its a little ******* but I cut off the tip on a stock toyota corolla muffler and made me a new flange, its almost the same size as the internal pipe in the grizz muffler. it did make it a tad bit louder but not much, mainly i noticed a power gain. Maybe got 2-3 hp out of if
Nice! glad to know i'm not the only one cheap enough to make my own lol:grin2:I also made my own Muffler tip. I used 1 1/2" pipe welded to a new flange. I used a screen type of metal sheet to make a spark arrestor. If I were to do it again, I would go 1 1/4 maybe even 1 1/8 ". The 1 1/2" is nearly as loud as a 2R racing 2" tip. I modified the inside of my tip to restrict a bit more so I am likely at 1 1/4 " equivalent now and its quieter, but still flows nice, sounds deeper than stock and does not look quite a much like a Limp Weenie like the factory tip does.
I went with HMF pipe and programmer and loved the fact that it was plug and play. Mine came adjusted right out of the box and I've never had to touch it.If you go with HMF, they'll ship a controller which has the basic parameters 'dialed in', as I understand it.
Albeit I don't know if these presets are good enough/spot on though (others with experience with HMF et al, may chime in?).
You'll still be able to finetune after that, for your liking.
/Kasper