how much hp should i gain with o/r x-pipe, if any??

[the ambush]

just installed o/r x-pipe and went on dyno. my previous numbers were 416rwhp with the basics (c-back + cai). unfortunately for an unknown reason, the tires would not hook, so no number higher than 300.
what are usual numbers with similar set ups?

 

[96stanggt]

Just a few.....I wouldn't count on more than 5-10...

 

[the ambush]

wow, so all that noise for almost nothing !
would the x-pipe yield more if i had pulley and tune?
at what hp level does the stock h-pipe start to restrict airflow?

 

[Boosted521]

i went from a magnaflow catted x pipe to a magnaflow offroad x and gained 47 whp and 42 wtq on the same tune. no adjustments were made to the tune at all. the correction factor was 1.02 for both days.

 

[BmoseleyINC]

A known fact about Terminators is that we have SUPER restrictive exhaust stock, look to gain about 10-15 RWHP. SO aroudn 25 hp at the least. 5.0 mag got 12 rwhp out of a 03 COrba with a bassani catback.

10 base hp sounds about right for your stock 96 gt, not an 03 CObra.

 

[96stanggt]

He's adding a mid-pipe not catback.......a mid-pipe on a stock pullied car won't be worth much..

 

[BmoseleyINC]

He's adding a mid-pipe not catback.......a mid-pipe on a stock pullied car won't be worth much..

WHoops, I sadi catback, but I meant x-pipe.. 5.0 mag got 10rwhp out of one on a stock CObra, A buddy of mine got 13 out of a vrs...That's 20+hp.

Do you know what you made?

 

[96stanggt]

No this exhaust combo was on the car when I bought it......

 

[rmgtc01]

FYI, at dyno day at steeda last year, I dynoed 399.5rwhp. with CAI and Flow CB.
Another guy had a K&N and Borla CB with Bassani catted X. He made 420rwhp.
So ~20rwhp.

 

[96stanggt]

You are comparing two different cars with different exhaust combos..... :dw:

 

[rmgtc01]

2 different cobras, not cars. Yeah but the "~" stands for approximately or roughly. Granted we both had K&N's but his Borla makes a few more Hp than my Flows CB. I understand it would also depend on his stock numbers too, but this was a real world trial and gained 20rwp. So it is possible to gain that amount not guaranteed. Chill out.

 

[96stanggt]

What are talking about chill out??? Your panties are in a wad not mine....I was just saying you can't really use that as a comparison since it's two different cars (even though they're both "Cobras") with two different combos. We all know the differences in stock pullied Cobra's dyno numbers....

 

[rmgtc01]

....but it is a possible number he can look at, and that is the point.

 

[redfire03 svt]

The reason why yours was lower is because Flowmasters don't make nearly the rwhp that Stingers/Magnaflows/Bassani or any straight thru muffler.

 

[rmgtc01]

yeah I know, ....Stupid patented technology!!

I just love the way flows sound, but the Borla Stingers are growing on me the more I hear them. I didn't want anything too loud for the Vert.

 

[rmgtc01]

just installed o/r x-pipe and went on dyno. my previous numbers were 416rwhp with the basics (c-back + cai). unfortunately for an unknown reason, the tires would not hook, so no number higher than 300.
what are usual numbers with similar set ups?

What are your brands???

 

[the ambush]

dynomax ultraflow cat back (3")
bbk o/r x-pipe (2.5")--removed--
kenne bell cai.

i removed the x-pipe due to its WAY-TOO-LOUD-AND-RASPY sound.
I should have followed my first idea : PROCHAMBER.
i use to have a prochamber on my 95GT. the sound was great.