X pipe worth it???????
Thread Starter
Melting Slicks
Joined: Jul 2006
Posts: 2,088
Likes: 2
From: tampa florida
X pipe worth it???????
Can anyone provide solid proof this is worth the investment expense? Some are saying gains of 12 hp and torque??? I have shorty headers and a straight pipe now. Do you keep the H cross over too or eliminate it. TIA 
Burning Brakes
Joined: Oct 2004
Posts: 931
Likes: 35
From: Rowlett, Texas
Well, it's really hard to quantify 12hp.
That's almost in the realm of normal variation.
I surely couldn't feel the difference, but the change in the sound
was the most obvious thing.
I think I really got about 12hp, because I had a couple of dynos right at 326 RWHP with just a Blackwing and catback.
When I removed the cats and installed the Bassani, I later dyno'd at 338.
After tiring of the smell and getting nervous about the legality, I
took the Bassani off, and added a Z06 intake manifold.
As a result I lost 2 RWHP. The guys say the Z06 intake is good for maybe 10 hp, so the math makes sense.
I guess it's kinda like buying a $800 catback, and getting 4 HP; of course the HP gain is not worth it, it's all about the cool sound and look. If you have a sound you like, you probably wouldn't want to de-cat it for 10-12 HP. If you want more growl, the 12HP is just a bonus.
I won't argue the legality and smog aspects, but I guess it made me personally feel a bit guilty, even though my neighbor drives an Excursion. But that de-cat smell can get real old after awhile.
DG
That's almost in the realm of normal variation.
I surely couldn't feel the difference, but the change in the sound
was the most obvious thing.
I think I really got about 12hp, because I had a couple of dynos right at 326 RWHP with just a Blackwing and catback.
When I removed the cats and installed the Bassani, I later dyno'd at 338.
After tiring of the smell and getting nervous about the legality, I
took the Bassani off, and added a Z06 intake manifold.
As a result I lost 2 RWHP. The guys say the Z06 intake is good for maybe 10 hp, so the math makes sense.
I guess it's kinda like buying a $800 catback, and getting 4 HP; of course the HP gain is not worth it, it's all about the cool sound and look. If you have a sound you like, you probably wouldn't want to de-cat it for 10-12 HP. If you want more growl, the 12HP is just a bonus.
I won't argue the legality and smog aspects, but I guess it made me personally feel a bit guilty, even though my neighbor drives an Excursion. But that de-cat smell can get real old after awhile.
DG
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I really didn't notice a difference in the hp or torque on my car when I installed my x-pipe, but I didn't do it for that reason anyway. I was having a lot of resonance in 6th gear and lots of popping when letting off the gas. After installing the X-pipe, I'd say 95% of that went away. That was good enough to justify the purchase.
Melting Slicks
Joined: Mar 2005
Posts: 2,252
Likes: 181
From: NE OH
Originally Posted by Nulltime
Why wouldn't your headers be of equal length?
Racer
Joined: Jan 2006
Posts: 479
Likes: 1
From: Cape Coral FL
i havnt dynoed my car or anything, but I did install a bassani x pipe (rear one | there are two a front and rear x pipe) the sound was different. It was more quiet than before IMO.. but i did feel an increased throttle responce.
I only paid 180 new and shipped so it wasnt a big 'risk' if it didnt do much as far as power gain/loss.
I only paid 180 new and shipped so it wasnt a big 'risk' if it didnt do much as far as power gain/loss.
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Drifting
Joined: Aug 2005
Posts: 1,924
Likes: 0
From: CT
Originally Posted by muncie21
Equal length refers to the length of each of the 8 individual runners. When fabricating headers, it can be difficult to make each of the tubes the same runner volume, due to various bends in the tubes.
Thanks
Thanks to Robvuk as well
