Gotts Mod and flowmaster

[Harry12]

I've been looking at Gibsons exhaust for mine. Along with Magnaflow there are not many cat back systems available unless just changing the muffler like you did.

 

[jonesn51404]

Yea and unless your upgrading to stainless a cat back at this point for me wasn't worth the cost. Muffler shop I went to said it wouldn't be worth it to go dual exit and there wasn't enough room for true duals


2012 EL XLT 4x4
Flowmaster 40 series and gotta mod

 

[bd1980]

I just did the 11 F150 snorkel and new motorcraft filter. Can't really tell too much sound difference but it is running a little smoother, maybe a bit more pep. Of course the old filter I pulled out of there wasn't in the best shape so who knows. For six bucks it's worth it just to know that tiny stock one isn't on there. I'm not a fan of wet element filters (i.e. K&N) so this is all the farther I plan on going with the intake side of the engine. My opinion is that on a stock engine, your not going to see barely any difference, if any at all, and just get worse filtration.

 

[parrotplayswing]

What brand id the 40 series muffler?

I recently purchased the snorkel and KN filter for my 07 EXP. Now I need a muffler. Whats the 40 series muffler u guys are talking about. Brand, where to purchase it! tks

 

[jonesn51404]

It's a flowmaster most auto parts/ muffler shops carry them. I'll get a video sometime tonight


2012 EL XLT 4x4
Flowmaster 40 series and gotta mod

 

[andrew_s]

Is there really any difference between doing the Gotts mod and K&N drop in filter compared to a K&N CAI? I have a 12 EL and have done both and seen no noticeable difference except for sound. I am not impressed with the fit and finish of the K&N CAI so I am just running the Gotts setup listed above. Most interested in a little MPG improvement. Any thoughts?

The only real difference is sound and a light wallet. The stock intake (especially with the 2011 f150 snorkel) flows more then enough for the 5.4, add in a higher flow dry flow like airaid and youll be pulling well over what the 5.4 will ever need. As for sound I think there might be a very slight difference but honestly there really isnt difference.

Id be interested in hearing what a muffler only sounds liek on the expedition as Im very interested in an exhaust system, but Im also very partial to a quiet truck after the last 2 jeeps have loud exhausts and sportscars before that didnt have cats or mufflers so being able to start the truck up at 3am and nnot waking the neighbors is wonderful.