i have 2006 f-150xlt 5.4 with k&n cai, air raid throttle body spacer, cat back flow master 40, and edge, some time my truck will start to run real rough i talked to dealer and they said it was running lean, i run 91 octane and the stock edge stage 3 what tune do i do??????

 

Call Bill at www.powerhungryperformance.com.

 

What brand of gas do you run? My truck runs best on Shell, Exxon, or Chevron gas. Stay away from cheap gas!!!! The throttlebody spacer is probably not doing you much good and your flowmaster is really only good for noise.

 

take off tb spacer first-take off cai and see if condition goes away-edge's are not designed for cai's-sounds like you have a driveability issue -contact bill cohron at power hungry performance for a custom tune for your edge

 

I agree ...

 

ok i emailed him and waiting for reply on the flow master i talked to the owner of RPM exhaust he said flow master vs magna flow and all others are the same no difference but sound. But im going to change out the 40 and switch to flow master race 10 series.

 

I would switch to a Borla or Dynomax muffler. Believe it or not, there can be performance differences.

 

Actually despite what he said, Flowmaster mufflers have shown to decrease tq numbers on the dyno.

 

ya idk i mean it couldn't be that much of a difference any way but i am prob not going to get another flow master im thinking of a down pipe right at the front of the rear tire but what other mods could i do without forced induction, new intake?injectors?fuel rails? anything thanxs for all the replieshttps://www.f150online.com/forums/images/smilies/beers.gif

 

x2- the owner is a salesman and a rep of flowmaster- of course he will say that

 

Consider this:



F-150 LIGHTNING STYLE EXHAUST SYSTEM
M-5230-L*


M-5230-L*
* Fits 2004-2005 F-150 2WD (will not fit 2004 Heritage or Lightning models)
* SVT Lightning inspired styling
* Unique tips
* Made of high-quality T-304 stainless steel
* Additional lengths to fit all wheelbases included in the kit

 

nice i got the turn pipe on with flow master 10 series i already notice it is a lil quicker and torquey and sounds like a monster lol but i want more part what else should i get???!??! Anything but turbo or supercharger

 

Ditch the TB spacer, it's a paper weight. It's not giving you any benefits other than extra weight. I'd look into getting a custom tune from Bill at PHP. Ditch the Flowmaster for a Magnaflow or Dynomax muffler. Maybe consider getting a new intake as the K&N intakes aren't exactly the very best intake out there but I'd consider that down the line. I'd also highly consider getting a set of E-Fans, they can net you about 10 rwhp.

 

Seriously? You'd spend 300 bucks to net maybe 1-2 rwhp? the K&N 57 series, when tuned for, will net comparably as much power as a 3" AF1 or S&B, plus K&N is CARB certified (unlike both the AF1 and S&B) and has a lifetime warranty. What more could you want? lol.

I agree on the E-fans though, and lose the TBS, and swap out the flowmaster for a borla, magnaflow or dynomax.

 

I'd like to see your dyno graphs to support your claim. Don't stick to your guns just because you own that intake, it's a little biased. I did say that I'd consider it down the line for the very reason that it won't net that much gain but when you're trying to squeeze every bit of power out of it without doing major mounds, every mod counts.