4" exhaust install problem
Thread Starter
|
Senior User
Joined: Nov 2006
Posts: 122
Likes: 0
4" exhaust install problem
I put in my 4" turbo back, and it's so tight where it bends between the spare tire and passenger side shock there is very little room it rubs against the shock . Anyone else have this problem. I can't really tell the performance difference. I am a little disappointed in the sound it makes. I thought it would have been a little more throatyer-is that a word??I don't want to delete the muffler because I think it would be to load. Would a tip help?
Laughing Gas
Joined: Jul 2003
Posts: 1,157
Likes: 1
From: Littleton, Colorado
The benefit of the 4" exhaust is not so much of a performance thing until you add bigger turbo, injectors etc. Where you will see an inprovement is in the upper end of the power band like at highway speeds. The 4" will greatly improve the life of the turbo and engine by letting her breathe.
Austin
Austin
Post Fiend
Joined: Feb 2007
Posts: 14,541
Likes: 2
From: Dallas-Ft. Worth
Whose system is it? When I put my MBRP on, I had to leave all the connections loose and adjust everything until it was where I wanted it, then snugged all the clamps down. I like how mine sounds, but I will be taking the muffler out just to see if I like it better. The reason for the bigger exhaust is to keep the EGTs down. Really only a factor when you're towing or hitting it hard with an aggressive tune. I'm sure it does add some to performance, but really it's to keep the exhaust flow up lowering EGTs.
Post Fiend
Joined: Feb 2007
Posts: 14,541
Likes: 2
From: Dallas-Ft. Worth
Trending Topics
Lead Driver
Joined: Jun 2007
Posts: 7,760
Likes: 27
From: Hampton, Maryland.
Most claims that I have read seem to mention 18-22 HP gain and 100-200 degree drop in exhaust gas temperature. That is significant.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Elder User
Joined: Sep 2006
Posts: 627
Likes: 0
From: Middleton, Idaho
Lossen up your connection points re-align, from tranny support back. Tighten up from the back to front after you have made sure that your pipe is clear from shocks and spare tire. I have a the 5" exhaust system that clears the shock and tire, your 4" should be a piece of cake.
Thread Starter
|
Senior User
Joined: Nov 2006
Posts: 122
Likes: 0
Originally Posted by IDPisan
Lossen up your connection points re-align, from tranny support back. Tighten up from the back to front after you have made sure that your pipe is clear from shocks and spare tire. I have a the 5" exhaust system that clears the shock and tire, your 4" should be a piece of cake.
Thread Starter
|
Senior User
Joined: Nov 2006
Posts: 122
Likes: 0
Originally Posted by jeff7825
As far as the sound goes, it's probably a lot louder than you think. It may be hard to tell from the driver seat, but the people beside you going down the road know how loud it is.
Fleet Owner
Joined: Jun 2004
Posts: 25,090
Likes: 1,111
From: Rio Rico, AZ.
Originally Posted by jeff7825
As far as the sound goes, it's probably a lot louder than you think. It may be hard to tell from the driver seat, but the people beside you going down the road know how loud it is.
Senior User
Joined: Jul 2006
Posts: 406
Likes: 0
From: Haysville Ks.
Which exhaust did you go with?
Originally Posted by Jzinkiewicz
If you can get a 5" in there then 4" shouldn't be a problem. I'll try wiggling it around and move the tire over some. what I gather is that the 4" is good to keep the egt's dwn. I just thought it would make more of a difference in performance o well...I like anyhow and am glad i did it.