Good question.

Well, I've heard two guys say ZERO on the shorty's over stock. One of those two did dyno. On the other side, I recall one guy posting shorty's gave him a little bit.

The LT question. It's a definite gainer and cheap as well. You can get LT's for under $300 and High flows are just about free,- if you turn your stock cats into the salvage yard. I got $160 for my stockers, but I've heard of guys here getting 200+ .

You'll have to search it out, it's here.

The very worst thing about LT's is the install lol - Well, unless your equipped and can weld.

Also, Pacesetter and Dynotech LT's are longer than OBX LT's.

To be all they can be , you need a custom tune. - Data-log or Dyno, I think there's Live Wire now as well, not sure how that one works.

 

I got screwed! I let my muffler shop have my cats!

 

Did they ask you nicely, or was it like "you don't want your old exhaust parts do you"

Yea, about a year ago Platinum shot way up, but it wasn't just that,- Palladium and Rhodium (spelling?) were at record prices as well.

Muffler shops AND thieves were making out like bandits at first, haven't heard to much about it lately.

I think I started a thread on it, here, when I cashed mine in.

 

I did some quick research and shorties provide greater low end power over stockers.

http://mustangforums.com/forum/4-6l-...o-results.html

Peak horsepower is slightly increased, but there is more low end grunt. If I can get a cheap set of shorties, I might go that way.

 

I really could care less about HIS gains because there are very few trucks on here that were modified to that extent. Neal put down 19whp on his stock 9:0 compression PI short block with stock heads, stock cams. With full bolt ons when he put on Kooks long tubes.

Also 6 seconds is a lot. I am not argueing because I am sure you have the vids. Your truck the way it is would probably run low 16's in the 1/4 mile. So before your long tubes you were likely running what high 22's low 23's, lol. There are a lot of factors that come into play with your trucks performance, temp, humidity, atmospheric pressure etc.

 

LT's just look bad ***! And I'm sure they sound awsome compared to stock manifolds.

 

Unless your truck is a show truck most people couldn't care less what their headers look like haha. Shorties are really made for a deeper exhaust note and a better looking repacement over your oem cast iron manifolds. Lts are where it's at. Custom tunes and lts= 30/35

 

Whats the difference between Pacesetter, OBX, brand X , brand Y?

Where can you get LTs for under $300????

---DirtySCREW

 

I have BBK shorty headers on mine. Are they any good?

 

Close enough.....

http://www.autoanything.com/exhausts...A2836A0A0.aspx

 

Are Pacesetters really any good?? Talking LT's or shorties..

Ive got a cracked exhaust manifold myself...

 

the name, the materials used, the reputation.

 

I installed Summit Racing shorties (Pacesetter) a few months ago, as an excuse to change 2 broken studs, and they were only $150. It takes long fingers, LOTS of patience, and some muscle to tweak the EGR tube into place. Also used Fel-pro gaskets since the ones that came with headers looked like cheap plastic.

Overall performance is hardly noticeable, if any. Just glad I don't have annoying exhaust leak anymore.

 

Phatbak---thanks for your reply. This is what I'm afraid of---spending hard earned money and not getting much for it....no matter whether its $150 for the Summits like you have or $4-500 for brand X. I see you have a custom tune from PHP...did you re-tune for you headers? Just curious.-------DirtySCREW

 

Bill said there is only a slight difference between stock manifold and short tube headers, not enough to make changes on the tune. You only need to change the tune if you put on long tubes.

Even if you don't put on headers, a custom tune is well worth the money.