Thanks to all over the past few weeks. Cut my cat out last night and love the new sound. Cat out, slip ons installed. New breather and I think I am all set for this year.

Thanks again everyone.

 

Great to hear, enjoy! Sound byte?

 

Did you tune it?

 

X2...Making it breathe better is always a good thing but you gotta compensate by tuning. Without you will likely run lean which means hotter temps and pops.

 

Did not tune it yet. I wanted to run it for day or so too see how it reacted. I am getting a ton of decel popping. Tuning seems to be in order.

 

The deceleration popping is from a lean condition in the idle circuit caused by less restrictive exhaust. Most will do that if you change just the exhaust. With a tuner, adding 5-8% more fuel in the 0-1500rpm column will all but eliminate it.

 

You edited your post; I edited my response

Decel popping and burbling is a creation of fuel entering the exhaust under off throttle conditions; when the AFR is right it burns off in the hot exhaust; adding fuel in off throttle situations will alter the AFR and prevent the popping and burbling, as Tucci has now posted...