why bassani only 2.5"?
12-11-2008, 03:41 PM
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why bassani only 2.5"? I am curious about this true dual system.
http://www.lmperformance.com/5795/1.html
From what I have read it would appear that every catback they make is only 2.5" as opposed to 3". I am not sure whether or not this true dual system is dual 2.5" or dual 3". I would really like a true dual system but I am concerned that if it is 2.5" it will limit me for future plans. About what hp does dual 2.5" become insufficient? Is anyone on here running this system? Opinions?
http://www.lmperformance.com/5795/1.html
From what I have read it would appear that every catback they make is only 2.5" as opposed to 3". I am not sure whether or not this true dual system is dual 2.5" or dual 3". I would really like a true dual system but I am concerned that if it is 2.5" it will limit me for future plans. About what hp does dual 2.5" become insufficient? Is anyone on here running this system? Opinions?
12-11-2008, 05:21 PM
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from what i have heard, you need 2.5" to go over the axle (better clearance). unless you're looking at a huge amount of power, it should be enough. im pretty sure its good for over 500.
12-11-2008, 05:33 PM
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its going to be getting a procharger to toss on top of the 408. I would like to think around the 700rwhp range.
As far as the dual 3" over the axle goes I believe you have to do a PHB relocation to allow for the extra pipe diameter.
I am just tired of this Y-pipe crap! Besides X-pipe cars sound ssssick!
As far as the dual 3" over the axle goes I believe you have to do a PHB relocation to allow for the extra pipe diameter.
I am just tired of this Y-pipe crap! Besides X-pipe cars sound ssssick!
12-14-2008, 11:56 AM
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I have this system on my stock 02 ls1. Clearance is great as well as fit. Tips are not so great. Flow and sound are impressive. It is very subdued under 3k rpms, but get it above 3, and it screams. This is on stock manifolds. I plan to install long tubes eventually. I am very pleased with my purchase.
12-14-2008, 08:39 PM
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Why is it 2.5"?
1.) It's cheaper to use 2.5" pipe.
2.) Ground clearance is better with 2.5" pipe.
3.) You don't have to neck down over the axle with 2.5" pipe like you have to with 3" pipe.
4.) A 2.5" TD system provides MUCH MORE flow than a 3" y-pipe system.
So what will you get with a 3" system?
1.) A higher price tag.
2.) Less ground clearance.
3.) Forced to neck down over the axle, adding to cost and potentially creating poor merge/reducing issues.
4.) Reduced exhaust velocity and torque in most cases since there is no need for 3" TD's on the vast majority of F-bodies out there. Remember, this system is designed for stock manifolds and with stock manifolds and cats (and surely the vast majority of 346 combos out there), 2.5" TD's are better suited. Let's not forget there are plenty of high horsepower builds out there running 3" catbacks, and since 2.5" TD's greatly outperform a 3" y-pipe system in terms of flow, you lose nothing.
1.) It's cheaper to use 2.5" pipe.
2.) Ground clearance is better with 2.5" pipe.
3.) You don't have to neck down over the axle with 2.5" pipe like you have to with 3" pipe.
4.) A 2.5" TD system provides MUCH MORE flow than a 3" y-pipe system.
So what will you get with a 3" system?
1.) A higher price tag.
2.) Less ground clearance.
3.) Forced to neck down over the axle, adding to cost and potentially creating poor merge/reducing issues.
4.) Reduced exhaust velocity and torque in most cases since there is no need for 3" TD's on the vast majority of F-bodies out there. Remember, this system is designed for stock manifolds and with stock manifolds and cats (and surely the vast majority of 346 combos out there), 2.5" TD's are better suited. Let's not forget there are plenty of high horsepower builds out there running 3" catbacks, and since 2.5" TD's greatly outperform a 3" y-pipe system in terms of flow, you lose nothing.
12-15-2008, 10:17 PM
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Why is it 2.5"?
1.) It's cheaper to use 2.5" pipe.
2.) Ground clearance is better with 2.5" pipe.
3.) You don't have to neck down over the axle with 2.5" pipe like you have to with 3" pipe.
4.) A 2.5" TD system provides MUCH MORE flow than a 3" y-pipe system.
So what will you get with a 3" system?
1.) A higher price tag.
2.) Less ground clearance.
3.) Forced to neck down over the axle, adding to cost and potentially creating poor merge/reducing issues.
4.) Reduced exhaust velocity and torque in most cases since there is no need for 3" TD's on the vast majority of F-bodies out there. Remember, this system is designed for stock manifolds and with stock manifolds and cats (and surely the vast majority of 346 combos out there), 2.5" TD's are better suited. Let's not forget there are plenty of high horsepower builds out there running 3" catbacks, and since 2.5" TD's greatly outperform a 3" y-pipe system in terms of flow, you lose nothing.
1.) It's cheaper to use 2.5" pipe.
2.) Ground clearance is better with 2.5" pipe.
3.) You don't have to neck down over the axle with 2.5" pipe like you have to with 3" pipe.
4.) A 2.5" TD system provides MUCH MORE flow than a 3" y-pipe system.
So what will you get with a 3" system?
1.) A higher price tag.
2.) Less ground clearance.
3.) Forced to neck down over the axle, adding to cost and potentially creating poor merge/reducing issues.
4.) Reduced exhaust velocity and torque in most cases since there is no need for 3" TD's on the vast majority of F-bodies out there. Remember, this system is designed for stock manifolds and with stock manifolds and cats (and surely the vast majority of 346 combos out there), 2.5" TD's are better suited. Let's not forget there are plenty of high horsepower builds out there running 3" catbacks, and since 2.5" TD's greatly outperform a 3" y-pipe system in terms of flow, you lose nothing.
12-16-2008, 02:59 AM
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How would you lose HP with QTP headers.. That makes no sense.
I have 1 3/4" stainless QTP's.. Haven't dynoed yet but I can guarantee I didn't LOSE horsepower... wtf?
I have 1 3/4" stainless QTP's.. Haven't dynoed yet but I can guarantee I didn't LOSE horsepower... wtf?