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post #1 of 8 (permalink) Old 03-03-2015, 12:14 AM Thread Starter
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Gasket Question

Alright, I finally got my ZZP headers and downpipe. But I failed to realise that the headers and downpipe I ordered didn't come with gaskets.

I've looked on ZZP's website, but I can't find anything on what gaskets I need. I settled on the shorty headers with the 3" opening and the 3" ZZP downpipe with the 2.5" exit. I just need to know what gaskets I need for the header to engine section and headers to downpipe section. Can anyone give me any idea on what I need?


2008 Cobalt LS 2.2l
Current Mods
SS Wing
Injen Cold air intake
Eibach Sportsline springs
Motegi FF7 17x7 gloss black
Straight pipe w/ muffler delete
Spec-D tuning smoked tails
ZZP 3" catless downpipe
ZZP Shorty Header
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post #2 of 8 (permalink) Old 03-03-2015, 04:43 AM
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The shorty header has the 3-bolt flange, yes?

If so, then you can use stock replacement gaskets for the manifold to downpipe and the downpipe to catback, since both are considered stock replacement parts.

1986 Chevrolet Camaro IROC-Z - Wrecked/Sold
1998 Chevrolet Cavalier - Wrecked/Donated
2007 Chevrolet Cobalt LT - M62 Supercharger, Ported Throttle Body, 42 lb/hr Injectors, Intense 2.9" Pulley, Cobra Heat Exchanger, SS/TC Exhaust, TTR Engine and Trans Mounts, Trifecta Tune, ZZP Header and Downpipe, '08+ FE5 Struts/Shocks, SSC Springs, FE5 Control Arms, SS/SC Front Swaybar, Powell Hardcore Rear Swaybar, 18" MSR 045s, Dunlop ZIIs, Nightshaded Tails/Side Markers, Shorty Antenna, Black Bowties, Black Grilles, Black Headlights, Dual JL 12" w1v2 Subs, A/D/S Front/Rear Speakers, Pioneer 7" Touchscreen, G85 Recaros, Leather Rear Seats, 160 MPH Cluster.
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post #3 of 8 (permalink) Old 03-03-2015, 04:50 AM
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You could just use high heat rtv silicone.


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post #4 of 8 (permalink) Old 03-03-2015, 04:54 AM
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Cobalt Lower Exhaust Manifold Gasket 15235773

Converter to Exhaust Pipe Gasket 15231157

I know the top one should fit, the second one i am not sure about
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post #5 of 8 (permalink) Old 03-03-2015, 05:09 AM
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Looks like it should. Not sure if the part numbers are the same between the 2.2/2.4 cars and the LSJ.

1986 Chevrolet Camaro IROC-Z - Wrecked/Sold
1998 Chevrolet Cavalier - Wrecked/Donated
2007 Chevrolet Cobalt LT - M62 Supercharger, Ported Throttle Body, 42 lb/hr Injectors, Intense 2.9" Pulley, Cobra Heat Exchanger, SS/TC Exhaust, TTR Engine and Trans Mounts, Trifecta Tune, ZZP Header and Downpipe, '08+ FE5 Struts/Shocks, SSC Springs, FE5 Control Arms, SS/SC Front Swaybar, Powell Hardcore Rear Swaybar, 18" MSR 045s, Dunlop ZIIs, Nightshaded Tails/Side Markers, Shorty Antenna, Black Bowties, Black Grilles, Black Headlights, Dual JL 12" w1v2 Subs, A/D/S Front/Rear Speakers, Pioneer 7" Touchscreen, G85 Recaros, Leather Rear Seats, 160 MPH Cluster.
2014 Chevrolet Cruze Diesel - 17" MSR 013s, Black Bowties, UR Rear Lower Bar
1981 Chevrolet Camaro Z28 - JVC Ribbon Tweeters, SEAS Mids, Pyle Woofers, Kenwood Tape Deck, Zapco Amp/Equilizer, Ceramic-Coated Longtubes, 2.5" Pypes Stainless Exhaust, Bilstein B6 Shocks, GW U/L Control Arms, Hotchkis Springs Sway Bars, DD HDX Cluster
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post #6 of 8 (permalink) Old 03-03-2015, 05:13 AM
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I cant remember off of the top of my head but i will try and check when i can get to my computer.
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post #7 of 8 (permalink) Old 03-03-2015, 05:28 AM
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Looking on Rock Auto, it appears so.

Fel Pro numbers:

61362 (downpipe to header)
61440 (downpipe to resonator/exhaust)

1986 Chevrolet Camaro IROC-Z - Wrecked/Sold
1998 Chevrolet Cavalier - Wrecked/Donated
2007 Chevrolet Cobalt LT - M62 Supercharger, Ported Throttle Body, 42 lb/hr Injectors, Intense 2.9" Pulley, Cobra Heat Exchanger, SS/TC Exhaust, TTR Engine and Trans Mounts, Trifecta Tune, ZZP Header and Downpipe, '08+ FE5 Struts/Shocks, SSC Springs, FE5 Control Arms, SS/SC Front Swaybar, Powell Hardcore Rear Swaybar, 18" MSR 045s, Dunlop ZIIs, Nightshaded Tails/Side Markers, Shorty Antenna, Black Bowties, Black Grilles, Black Headlights, Dual JL 12" w1v2 Subs, A/D/S Front/Rear Speakers, Pioneer 7" Touchscreen, G85 Recaros, Leather Rear Seats, 160 MPH Cluster.
2014 Chevrolet Cruze Diesel - 17" MSR 013s, Black Bowties, UR Rear Lower Bar
1981 Chevrolet Camaro Z28 - JVC Ribbon Tweeters, SEAS Mids, Pyle Woofers, Kenwood Tape Deck, Zapco Amp/Equilizer, Ceramic-Coated Longtubes, 2.5" Pypes Stainless Exhaust, Bilstein B6 Shocks, GW U/L Control Arms, Hotchkis Springs Sway Bars, DD HDX Cluster
2017 Chevrolet Volt LT - Black Bowties
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post #8 of 8 (permalink) Old 03-04-2015, 01:22 AM Thread Starter
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Yes, the shorty headers have a 3" flange. The downpipe is 3" in diameter until it gets to the exit where it bolts to the exhaust and then it goes down to 2.5".


2008 Cobalt LS 2.2l
Current Mods
SS Wing
Injen Cold air intake
Eibach Sportsline springs
Motegi FF7 17x7 gloss black
Straight pipe w/ muffler delete
Spec-D tuning smoked tails
ZZP 3" catless downpipe
ZZP Shorty Header
LS-1 is offline  
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