Whats the best exhaust? What are the best headers? - Page 4 - Third Generation F-Body Message Boards

northeaster79 · 11-28-2007, 07:28 AM

excellant thanks,so when buying a high flow converter I'll need one that has the air pipe.

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poodu45 · 11-28-2007, 02:29 PM

I am putting togeather a twin turbo 350 and got tired of looking for decent headers so we welded up our own equal legnth and front turbo flange-I used 2" tubes and a 4" collector-my question is why can't I use a square 4" collector tube out of 1/8 thich stock- this would help disapate heat and be easy to reduce to a t4 flange-our headers will fit any applacation you can use shorties on and will work on a/c cars also

IROCZman15 · 12-06-2007, 02:32 PM

is there any way to get these

everywhere I look they are discontinued/not made anymore...

http://www.hawksthirdgenparts.com/in...OD&ProdID=1168

five7kid · 12-06-2007, 03:35 PM

The operative word is "DISCONTINUED".

That means classifieds, eBay, racingjunk, etc.

Pearl91GTA · 01-20-2008, 01:49 AM

i would have to say mufflex hands down!!!!

Dyno Don · 01-24-2008, 06:02 PM

Quote:

Originally Posted by IROCZman15

is there any way to get these

everywhere I look they are discontinued/not made anymore...

http://www.hawksthirdgenparts.com/in...OD&ProdID=1168

I am making them now...and better.
They are available wth or without AIR tubes. PM me for details.

DTL504 · 01-24-2008, 06:16 PM

I have the Hooker 2210 on my Camaro with a little custom modification for that dreadful # 7 plug that usually causes problems or require a shorty plug. I had mine cut and extended to make a little more room. My Y-Pipe was custom made "mandrel bent" in Joilet, Il. for under $300. Here are a few pics. The whole system will be ceramic coated as soon as I get back from Korea in March 08.

Headers Mods.

skinny z · 01-26-2008, 05:09 PM

Hey DLT504!
Finally a long tube install that works. I've seen a LOT a 3rd gen install's (Dyno Don's shorties are some of the best but I want LT's). I particullarly like the cut out's. I can see the best of both worlds here. Fully muffled exhaust in the stock location for cruising and tuned length open headers for track days.
Question: Are those pre fab s-extentions or did you have them made to suit the custom y-pipe?
Was there an option for solenoid activated cut-outs?
Kevin

DTL504 · 01-26-2008, 07:00 PM

Quote:

Originally Posted by skinny z

Hey DLT504!
Finally a long tube install that works. I've seen a LOT a 3rd gen install's (Dyno Don's shorties are some of the best but I want LT's). I particullarly like the cut out's. I can see the best of both worlds here. Fully muffled exhaust in the stock location for cruising and tuned length open headers for track days.
Question: Are those pre fab s-extentions or did you have them made to suit the custom y-pipe?
Was there an option for solenoid activated cut-outs?
Kevin

Kevin,
The cutouts are from Summit Racing, already fab. I have electrical cut outs from McCord. Here is a link to both items.

Summit 3" Cutouts Part# SUM-670137
http://store.summitracing.com/partde...5&autoview=sku

McCord Electrical Dual Power Plates for 3" Cutouts
Code: MPP2-32
http://mccordcg.com/Merchant2/mercha...egory_Code=MEC

skinny z · 01-26-2008, 08:13 PM

DTL,
The pipes between the header and the cut out look like aftermarket s-extentions.
Or are they custom like the y-pipe?

DTL504 · 01-26-2008, 11:20 PM

Quote:

Originally Posted by skinny z

DTL,
The pipes between the header and the cut out look like aftermarket s-extentions.
Or are they custom like the y-pipe?

Sorry I did not understand what you meant in the previous post.
I have MagnaFlow's transition Y-Pipe, cost about $27.00. Scroll down to the Magnaflow pipe and select the proper pipe. I have the 124-10798 Magnaflow Transition Y-Pipe, 3" inlets / 3" outlet, 10" length.

http://www.thunderracing.com/catalog...&vid=3&pcid=54

skinny z · 01-27-2008, 12:38 PM

Thanks for the info DTL.
My 86 IROC is heading to the fab shop in the next couple of weeks so the pics go a long way.
Now the big question! Do you have any 1/4 mile performance data (I've checked your dyno sheets) with full exhaust as compared to the cut outs open?
I can see a couple of tenths in the 60' times if the exhaust tuning goes like I anticipate.

DTL504 · 01-27-2008, 03:48 PM

I do not have any 1/4 mile times...

Camaroman575 · 03-24-2008, 01:42 PM

i have an 88 305.
i have new exhaust from the cat back. magnaflow converter, 3in midpipe, flowmaster 80 series single in duel out 2.5in.. and stock manafold.
i want headers. best headers for a gooood price for my 305 annd headers that will work with my single exhaust.???

help please.

baseballa5757@yahoo.com

Kevin91Z · 03-25-2008, 01:49 AM

Once again, this thread is NOT for asking what you should put on your car. This thread is for reading about the differences between header and exhaust choices and making your own decision about what you should put on your car. If you still have questions after reading this thread, then you can start a new one.

Camaroman575 · 03-25-2008, 01:11 PM

Exhaust Post your questions and suggestions about stock or aftermarket exhaust setups. Third Gen exhaust sound files and videos.

i had a question. and you have to be a **** about it. if anyone knows anything that will help me, it would be much apprecated. thank you.

Kevin91Z · 03-25-2008, 11:32 PM

You're absolutely right. This FORUM is the place to ask questions about the exhaust setup on your thirdgen.

But, this particular THREAD is not for asking questions. It is for providing info on the best bang-for-the-buck exhaust systems based on personal experiences with them.

If you have a question, start a new thread. If you have something to add to the discussion about exhaust systems mentioned in this thread, you can post it here.

InfernalVortex · 03-26-2008, 06:23 AM

I just got a picture of this so I thought I'd share for those trying to figure out how much work is needed to install the Hedman long tubes.

The driver's side header hits the A-arm perch. Solution - cutting off a piece of useless metal protruding out right there. This bothered me for a while until I saw exactly what needed to be done and I realized it wasn't that big a deal, to me anyway.

And yes, my A-arm bolts are backwards, I know.

ino · 06-19-2008, 04:21 PM

DTL that is a very nice setup you have there. How much did it run you?

Z THANG · 07-02-2008, 05:18 PM

I went with 1 3/4" Hooker Super Comps (long tube) with 3" pipes into two-chamber Flowmasters dumping at the rear axle. One of the best sounding setups in my opinion, well next to open headers, hehe.

I put tail pipes on it at one point when I was having to haul the kids around, and it killed the power, not to mention made it more cackly sounding. I would definately go with setups with the mufflers dumping before the rear axle for cars that have healthy motors.

Stock setups, the best I had was a Y pipe running in to 3" pipe back to a Flowmaster original replacement muffler. It gives it a nice sound, actually pretty loud for a "one in two out" setup. I thought about going back to this since my kids now want to ride with me and I'm sick of smelling like exhaust.

Timothayyy · 07-02-2008, 05:25 PM

DTL I really like your set up. Looks great, I should have done that too mine, oh well, maybe in a few years, lol.

importkiller198 · 08-11-2008, 08:32 PM

Hooker headers makes a header that turns in the stock location toward the passengers side of the car, they are ceramic coated, super comp, long tube headers part number 2138-1 you can get them at www.holley.com. Dynomax makes header back dual exhaust kit on www.summitracing.com and has the headers to fit the kit but doesnt come with mufflers. i had to cut a little on the exhaust to fit the long tubes and to fit the flowmaster 40 series but it sounds awesome. I wanted the tali pipes to go out the back so i rerouted some pipes. the part number on the dynomax pipes is WLK-89009. Like i say they are header back without converters but you will be satisfied!

heartofalion · 05-09-2009, 07:54 PM

Ok, first off it seems this thread hasn't been used in a while so I hope this works. This will be a multi-part two-option question. I have a 91 RS with a 305 only work done to it was a change in the exhaust, now has a magnaflow muffler, straight pipe (sorry emmissions guys). Now I have two choices either keep with the 305 theme, buy another 305 stroke it out to 331 or I have a 350 4 bolt main out of an 86 suburban sitting in my yard i could swap in there. Although this thread is not for motors if anyone can give me their opinions on which I should do I would greatly appreciate it. The other question which does belong in this thread is in either set-up which set of headers and cat should I go with, while keeping the magan flow set-up? Also I have an exhaust shop that does the work for me, can i just go with a custom Y-pipe or should i order one?

anthony714 · 05-10-2009, 10:51 AM

simple.if you yanking motor no way in hell the 305.stroked or not ,goes back in......period. 350,grab 400 crank any boom.....383...headers,simple,hedman or hooker shortys work fine,edelbrocks are nice units and i think all sell y pipes. buy stuff for what youre driving. long tube headers arent needed for what it sounds like youre doing. plus ground clearence sucks. if youre going to exhaust shop for get y pipe. have em plumb a 2 12" true dual with x pipe. i did, sweet as butterrrrrrrrrrrrrrrrrrrrrr

bigals87z28 · 05-10-2009, 12:31 PM

If you are going to do a 383, I would go with a set of large long tube headers.
I would also go with the 350 route. As a 305 fan, if you have access to the 350, do it.

89iroc-z559 · 09-06-2009, 01:56 AM

So if I don't get the 1-3/4 short Headers I can't make any power over 300? And how much hp gains can I expect from the 1-3/4 headers compared to the 1-5/8 ones. I'm curious because this is gonna be my first modification and I don't really know alot about performance engines. So yea any help will b appreaciated.

Kevin91Z · 09-06-2009, 05:20 PM

Yes you can certainly make more than 300 horsepower with 1 5/8" headers.

I dont think anyone has done a direct comparison between 1 5/8" headers and 1 3/4" headers. Have they?

I just know the exhaust gasses are hot and want to expand. Larger tube headers help those gasses expand and get out of the engine easier. Up to a certain point of course. You wouldnt put 1 7/8" or bigger headers on a small block unless you're really pushing some air at higher RPMs.