what headers and y pipe are a direct bolt on?
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On The Tree
Joined: Jun 2010
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From: lynnwood,wa
what headers and y pipe are a direct bolt on? i have a 94 z28 with a cracked passenger side mani, im new to these car after having messed with mustangs for years and i dont see a good fit for anything for a fair price and i dont wanna change a cracked mani for a stock cast pos. so help me out here guys. i want to just bolt it up.... dont feel like welding
i see stuff on ebay but i want to know whats the best fit.im keeping my cat
i see stuff on ebay but i want to know whats the best fit.im keeping my cat
Thread Starter
On The Tree
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From: lynnwood,wa
i havent researched removing the air injecton but i wouldnt mind removing it as long as i dont need a tune or what ever. my car already has some hypertech piggyback. but i want realistic spark plug access. i guess after owning so many 5.0 mustangs ive taken for grant it affordable good headers. this is stupid, the crap out there, slip on junk??its bad enough i got opti spark and im not buyin no damn kooks.are ls1 headers this bad too?
your best bet for longtubes and y are pacesetter. Inexpensive and good quality. They can be had for ~$275 for the painted version and ~$125 for the y-pipe. They are slip fit..but if you get a good 3" band clamp you wont have leaks.
If you remove the emissions it's gonna throw a code for the EGR. Only way to get rid of it is to tune it out. You mentioned you had a hypertech...you can clear the code with it too.
Plug access is still gonna be somewhat of a pain. But with the right tools and some patients it is still much better than getting around the factory manifolds.
If you remove the emissions it's gonna throw a code for the EGR. Only way to get rid of it is to tune it out. You mentioned you had a hypertech...you can clear the code with it too.
Plug access is still gonna be somewhat of a pain. But with the right tools and some patients it is still much better than getting around the factory manifolds.
Thread Starter
On The Tree
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From: lynnwood,wa
i have a 94 my hypertech is a piggyback so unless it came with a tunner its not the same as the obd2 hypertech power programmers.
i just need a simple cheap fix to my crack stock stuff without putting stock crap back on it.
so removing the air injection, whats the benefits and draw backs?
The only gain to removing the AIR system is you pick up some extra space in the engine bay - that's it. As long as you have a good fuse in the system you won't set an SES light.
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Thread Starter
On The Tree
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From: lynnwood,wa
i geuss it all depends on the headers i get. im trying to order some right now. this exhaust leak is so loud its embarrassing . but till i know what just bolt right up to my cat im stuck doing research where everyone just says long tubes.
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On The Tree
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From: lynnwood,wa
so anyone? what combo fits my car with the cat?
i need this exhaust fixed and i dont want to order something that might not fit. and i need to get it done asap the car is way loud right now with the crack
i need this exhaust fixed and i dont want to order something that might not fit. and i need to get it done asap the car is way loud right now with the crack
Thread Starter
On The Tree
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From: lynnwood,wa
mac seems to not use slip fit.
http://www.macperformance.com/store/...Product_ID=457
http://www.macperformance.com/store/...Product_ID=457
Last edited by hoursetraitor; Jun 27, 2010 at 05:20 PM.
Most of the longtube setups I have seen do away with the cat. You may be able to bolt a set on and go to the exhaust shop have them weld it on for you. Your other option may be a set of shortys as I think some of them will bolt up to the stock cat.
Maybe you should stop being so impatient. Not everyone posts at 7am on a Sunday morning. 
Most every set of shorties will mate up to the stock cat just fine. Worse case scenario is that it's close enough where you can cut/clamp as needed.
Most every set of shorties will mate up to the stock cat just fine. Worse case scenario is that it's close enough where you can cut/clamp as needed.
If you're this concerned about headers and the opti, you're working on the wrong car.
I've owned 5.0 Mustangs, 2.3L Turbo Thunderbirds, 5.0 Thunderbirds, and a handful of various cars, and granted, this is the more difficult to work on, it's far more fun to drive when you get it right.
Where do you live that you're so concerned with keeping your car? Also, an OBDI car has many more tuning resources than the OBDII cars, so if you're that concerned with the check engine like or anything, you can easily get some software, cable, etc etc and tune it out.
Keep in mind, you're not getting the answer you want because most of us, myself included, went with long tubes and O/R Y-pipe. Many people throw away their shorties for the long tubes.
I've owned 5.0 Mustangs, 2.3L Turbo Thunderbirds, 5.0 Thunderbirds, and a handful of various cars, and granted, this is the more difficult to work on, it's far more fun to drive when you get it right.
Where do you live that you're so concerned with keeping your car? Also, an OBDI car has many more tuning resources than the OBDII cars, so if you're that concerned with the check engine like or anything, you can easily get some software, cable, etc etc and tune it out.
Keep in mind, you're not getting the answer you want because most of us, myself included, went with long tubes and O/R Y-pipe. Many people throw away their shorties for the long tubes.
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I would ask around and see if someone has a set of stock manifolds for you to use. I threw mine out, as i'm sure lots of other guys did as well. Maybe some guys have the stockers sitting on a shelf in their garages. I wouldn't waste $250 on a set of shorties since they produce crap gains. Not sure why you are so set on keeping the cat in place. All shorties will bolt up to the stock y-pipe/cat though.
Thread Starter
On The Tree
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From: lynnwood,wa
I would ask around and see if someone has a set of stock manifolds for you to use. I threw mine out, as i'm sure lots of other guys did as well. Maybe some guys have the stockers sitting on a shelf in their garages. I wouldn't waste $250 on a set of shorties since they produce crap gains. Not sure why you are so set on keeping the cat in place. All shorties will bolt up to the stock y-pipe/cat though.
ok so all ive heard before is shorties need a y pipe to fit and that almost none will bolt up without cutting and hacking something.
so if i whent with long tubes for power gains im removing my cat, do i need to weld any thing or is there a flange by the cat?
Thread Starter
On The Tree
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From: lynnwood,wa
If you're this concerned about headers and the opti, you're working on the wrong car.
I've owned 5.0 Mustangs, 2.3L Turbo Thunderbirds, 5.0 Thunderbirds, and a handful of various cars, and granted, this is the more difficult to work on, it's far more fun to drive when you get it right.
Where do you live that you're so concerned with keeping your car? Also, an OBDI car has many more tuning resources than the OBDII cars, so if you're that concerned with the check engine like or anything, you can easily get some software, cable, etc etc and tune it out.
Keep in mind, you're not getting the answer you want because most of us, myself included, went with long tubes and O/R Y-pipe. Many people throw away their shorties for the long tubes.
I've owned 5.0 Mustangs, 2.3L Turbo Thunderbirds, 5.0 Thunderbirds, and a handful of various cars, and granted, this is the more difficult to work on, it's far more fun to drive when you get it right.
Where do you live that you're so concerned with keeping your car? Also, an OBDI car has many more tuning resources than the OBDII cars, so if you're that concerned with the check engine like or anything, you can easily get some software, cable, etc etc and tune it out.
Keep in mind, you're not getting the answer you want because most of us, myself included, went with long tubes and O/R Y-pipe. Many people throw away their shorties for the long tubes.
i actually just sold my 5.0 this week. ive had this car a month or less and i love it but the exhaust leak is annoying the hell out of me. i have a nice looking car and it sounds like a pos.lol. if its going to be easier to do long tubes and a o/r y-pipe ill go that route. i do have a good welder and im skilled but i moved to an apartment so i cant do much of anything. does the engine need to be lifted to fit long tubes? i dont want to spend more than $400 is that possible? i need to use some of the mustang money for other stuff
I have a set of BBK shorties on my 94. Bolts right up only thing that is clamped is the Y pipe which you could probably have it welded i just used what came with it when i bought them. As for the plugs some are decent to get to but some are a PITA. And like mentioned before they might not have a big gain by switching. Im looking for a set of longtubes and getting rid of my shorties.
Thread Starter
On The Tree
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From: lynnwood,wa
I have a set of BBK shorties on my 94. Bolts right up only thing that is clamped is the Y pipe which you could probably have it welded i just used what came with it when i bought them. As for the plugs some are decent to get to but some are a PITA. And like mentioned before they might not have a big gain by switching. Im looking for a set of longtubes and getting rid of my shorties.