JEGs 3in Dual Exhaust Kit - Chevy Nova Forum
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Old 10th-January-2010, 11:37 AM   #1
Shilo
 
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JEGs 3in Dual Exhaust Kit

My Nova is going to be needing new exhaust before I get it back on the road (I'd prefer open headers, but the local law enforcement says otherwise ). The 350 in my car right now is around 300hp give or take a few, but the 406 I'm planning to build would like the flow of a larger diameter exhaust. So, instead of doing the exhaust twice I was thinking about going ahead and getting this http://www.jegs.com/i/JEGS/555/30565...oductId=751868 and Hooker Max Flow mufflers. It's a 3in kit from JEGs that says it fits 4th gen Novas and goes over the rear end and exits behind the rear wheels. I was wondering if anyone here has used this particular kit, or ran 3in pipe over the axle with out many clearance issues? I plan for the 406 to have around 450 to 500hp at the crank and I've always been told that anything over 400hp should have 3in exhaust. Would I really need the 3in exhaust?
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Old 10th-January-2010, 02:51 PM   #2
Philip
 
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No the 3' exhaust isn't needed for the level of power you expect to have. I think it should be based on cubic inch not horsepower. A small block is only capable of moving do much air in and out. Some of the new BB engines would require it, like the 540, 572 ect.

My 406 is in the 450 horse range with 2.5" exhaust.
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Old 10th-January-2010, 02:57 PM   #3
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Im would go with a Summit kit with the "X" pipe

just me.

mine came from http://www.torquetechexh.com/ there web site sucks.
I purchased from them at Super Chevy in Atlanta. Kit is 5 years old now. Still looks perfect.

Al
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Old 10th-January-2010, 03:18 PM   #4
Shilo
 
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Quote:
Originally Posted by Philip View Post
No the 3' exhaust isn't needed for the level of power you expect to have. I think it should be based on cubic inch not horsepower. A small block is only capable of moving do much air in and out. Some of the new BB engines would require it, like the 540, 572 ect.

My 406 is in the 450 horse range with 2.5" exhaust.
That does make sense, I think I might look around a little more but it looks like I'll be getting 2.5" to save some money.

Quote:
Originally Posted by The Big Al View Post
Im would go with a Summit kit with the "X" pipe

just me.

mine came from http://www.torquetechexh.com/ there web site sucks.
I purchased from them at Super Chevy in Atlanta. Kit is 5 years old now. Still looks perfect.

Al
I've looked at the summit kits, but they don't sell just the pipe and want to include their brand of turbo mufflers . Jegs sells a 2.5" kit with no mufflers for $150, which I think I'm going to get and an X pipe as well.
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Old 10th-January-2010, 07:11 PM   #5
Polo78nova

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Ive got the summit 2.5" x-pipe kit with summit chambered race mufflers...sounds pretty nasty.the x-pipe kit was only $78 i think.mufflers where $30 each.
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Old 10th-January-2010, 09:36 PM   #6
04ctd

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i have long tubes on my 454,

and 3 inch from the collectors, it bends in and up towards the middle, and tucks along the tunnel....

goes along the tunnel, and the flowmasters kind of fit in where the rear tunnel widens for the pumpkin

i actually hung them off the rear seat belt holes, because i took out the seat belts.

FWIW, the emergency brake no longer works, because the pipes hit the cables, so i just cut all the Ebrake parts off.

i can get pics if you want, it is up on blocks for the next week, at least.
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Old 10th-January-2010, 09:52 PM   #7
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i have long tubes on my 454,

and 3 inch from the collectors, it bends in and up towards the middle, and tucks along the tunnel....

goes along the tunnel, and the flowmasters kind of fit in where the rear tunnel widens for the pumpkin

i actually hung them off the rear seat belt holes, because i took out the seat belts.

FWIW, the emergency brake no longer works, because the pipes hit the cables, so i just cut all the Ebrake parts off.

i can get pics if you want, it is up on blocks for the next week, at least.
A few pics would nice please. I'm curious to see how it looks underneath, but from what you've said, I think I'm definitely going 2.5".
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Old 11th-January-2010, 09:44 AM   #8
04ctd

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Quote:
Originally Posted by Shilo View Post
A few pics would nice please. I'm curious to see how it looks underneath, but from what you've said, I think I'm definitely going 2.5".
oh sure, i will roll around on the cold concrete and take pictures so you can window shop


of course, i wanted some pics too!!

I really want to post up pics, and see if anyone has pipes like mine, and see if they ended at the axle, or if going over the axle and out the sides made it quieter.

bound to be loud in there, wanna street drive it to car shows & stuff.
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Old 11th-January-2010, 11:37 AM   #9
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3inch flowmaster 44's
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Old 11th-January-2010, 04:07 PM   #10
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Also

Summit

http://www.summitracing.com/parts/SUM-642122/

http://www.summitracing.com/parts/SUM-642125/

http://www.summitracing.com/parts/SUM-642130/
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Old 11th-January-2010, 04:11 PM   #11
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Quote:
Originally Posted by The Big Al View Post
Also

Summit
If you're interested in the Summit kit, check out my Summit exhaust install thread with tons of pics: http://www.stevesnovasite.com/forums...d.php?t=127109

You cannot beat the price and quality of the Summit kit!
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LT1 baby!
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Old 11th-January-2010, 10:59 PM   #12
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I got the Jegs kit -> 2-1/2" a couple years ago and if it the same today it was bent very well.
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Old 12th-January-2010, 01:52 AM   #13
bigdaddykane

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I've looked at the summit kits, but they don't sell just the pipe and want to include their brand of turbo mufflers . Jegs sells a 2.5" kit with no mufflers for $150, which I think I'm going to get and an X pipe as well.[/QUOTE]

i didnt know jegs sells a 2.5 system without mufflers. thats great! anyone get it yet?
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Old 12th-January-2010, 03:32 AM   #14
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I think this is the kit I used - 17104k flowmaster part number. shows on jegs fits up to 74, if i remember correctly it used to fit up to 79. I belive the reason is because 75-79 were factory single exhaust and single cat converter. I installed high flow dual cats with this system and changed the collectors on the headers to flowmaster pulse tech scavenger collecter for a 2 1/2" exhaust all the way out. muffler fits in stock location and the sound is great, loud but legal and could not tell any difference in performance than open headers just need turndowns, the pipes stop about 8" from bumper that were in my kit. I know it is more expensive but I installed the pipes in 95, car has set since 2000 and they look all but new, the aluminizing I think makes the difference.
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Old 12th-January-2010, 07:49 PM   #15
04ctd

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Al,
did the X cross over help any?

mine is just true duals.

buddy has borrowed my camera to list some his junk on CL
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