I am about to order my new Y-pipe to get rid of the restrictive kink in the stock system. What I need to know is what size is the down pipes on our truck? Do I get the 2 1/2" down into the single 3" out? Thanks for any help.

 

I want to say it is the 2.5 in and 3 out but i would look under there and measure if it were me. Maybe someone else can answer for sure.

 

Technically the down pipes are 2.25", but a dual 2.5" into 3" works well because the 2.5" inlets can slip right over the stock 2.25" pipes and makes for an easy weld.


magnaflow PN 10778 is a popular Y you can find them sub $30 pretty regular

http://www.amazon.com/Magnaflow-1077...7107468&sr=8-1


http://www.autoanything.com/exhausts...A2680A0A0.aspx


nateroach

 

Thanks for your help guys, I just ordered mine from Summit. Always had great luck with summit and get my parts fast.

And Weed, I am a little disappointed that you don't have a definite answer to this. haha

 

Well I knew that before the cats were 2.25 because I ran into that issue but I though they opened up to 2.5 after that....Sorry. Wont let you down next time.

 

Haha, I'm just messin with ya. Good thing is, my new intake (AIRAID) and Y-pipe will be here on Mon or Tue.. Then I will be ordering a SC3865 next week. Any thoughts on a Fastman TB? I was going to order mine this week, but something came up so I will have to wait. Is it truly beneficial?

My mods would be: Flowmaster muffler with both resonators removed, Maggie Y-pipe, Intake, and programmer. Would a Fastman TB benefit from any of this or would I be wasting my time. I would like to upgrade to headers but in CA my choices while staying smog legal are slim. Any suggestions/recommendations?

 

Did you order a full cai, or just the mit? Interested to hear your impressions.

 

Just the MIT to rid the engine bay of the huge intake box and a little better flow. I have a drop in K&N in the box already so decided to just go with the MIT so I don't have whistles from a full CAI, plus it just looks cleaner.

I know I could have made one myself with PVC, but I just don't personally like how they look. I would rather have something professionally made rather than something from the plumbing section of Lowe's. Not to take away from anyone who has done the DIY intakes, just not my preference.

 

I ordered my Y pipe from Summit racing last night around 9 pm and I received it today around noon. I would say that's fast shipping. Now I only live about an half hour away, but still that's fast free shipping. Can't wait to have it installed.

 

Must be nice, although I ordered mine on Thursday night and will get it on Monday sometime.