SONICBOOST

First impression compared to the stingers is it sounds very similar but a little more throaty and open. My stingers also had about 10,000 miles on them so thats a plus for the mid muff, I think it will only get better as time goes on.They do drone but not as much as the stingers. I had the exhaust shop weld the system but it vibrates sometimes.Its a minor vibrate but still, I want perfection! What can cause the vibration, maybe the hangers? I am hoping that the vibration will go away as its broken in, if not I will take it to the shop and see what they can do... I am very pleased with this exhaust, it sounds MEAN!!!... Any thoughts as to what is causing the vibration? Thanks

P.S. They said they did not have any fitment issues and the tips are exact...

-Adam

Mustang05

There's a TSB for the tranny cross member hangers. They have this metal wrapped around that was used for aligning the exhaust system at the factory. The TSB says it can cause vibration around 800-1500rpms.

tom281

LOL glad you like it since it's welded.

SONICBOOST

Just got back from a cruse around town and no vibrations, i'll keep my fingers crossed...

SONICBOOST

Is there a number for this tsb or what do I tell the dealer when i take it there?

tom281

hahahaa first tell them you don't have a blower and aftermarket exhaust

SONICBOOST

Not funny Tom

Fman67

check to see if your hangers are touching body of car..especially on drivers side...near bumper area..when the exhaust gets hot enough...it expands...pushing system backwards...nearly an inch. sounds crazy...but it happened to me ...i found the hangers were rubbing sheetmetal...when system cooled down...it receeded away. just cut some off the end off hanger if this is what it is. Another way to check..look at tips when your car is cold...reference how far they stick out of bumper...then go romp it awhile...get it hot...then take a look at tips when you shutoff car...

GTMark052

Same here. The noise was driving me crazy because I couldn't figure out what was causing it. It only happened when the car was warmed up really well. In my case, it was the drivers side rear most muffler hanger rod that would come into contact with a bolt on the bumper. I cut off about 3/4 inch and have not had a single problem since.

JRay05stang

Did they install the SLP tips with it or did you use the pypes tips?

n8rfastback

thats funny cause i get a small rattle/vibration but only when the system is cold, once i drive the car for 15 seconds it goes away, and its only at a certain rpm....

i think its just the reverberation of one of the body panels back there while theres cold air in the tubes....

SONICBOOST

Dumb question but I can cut the hanger without taking the exhaust off correct...Maybe without jack stands. I was looking at how much was left on the hangers, there is plenty to cut...

SONICBOOST

No, I don't think the pypes tips look that bad, I kind of like them. Maybe in the future because I really like the slp rolled tips...

SONICBOOST

JonCo

just check some of the bolts. I had the same problem. A rattle but only at cold start up. I just played with it for a few. Problem solved.

SONICBOOST

I noticed the rear right hanger is way to long and there is a bolt about 1/2in away from it. Maybe that can cause vibration. Metal and plastic can't cause vibration can it? The pieces that the hangers go through are some sort of plastic and i'm curious if those can vibrate...

n8rfastback

well they are rubber... and should obsorbe most of the vibration from the exhaust....

when i stand behind the car i can feel the vibration in my legs and stuff so i know it could be doing the same to the body panels and what not causing noise.

tom281

awfully clever though, come on you gotta give me that

SONICBOOST

It was alright

SONICBOOST

Maybe but it wasn't there before so it's gotta be something with the exhaust. I'm gonna try and trim the rear right hanger because its too long... In a previous post someone said that the tips would push further back because the exhaust expands when warm and I noticed that. They came back about 1/2 in. That has to do something with the vibration because I noticed it will vibrate after driving around for a little. Its wierd though because it will vibrate once or twice then it goes away... IDK