headers

[1LE_ROLL]

I recently installed speed engineering headers and their full exhaust on my car and had no fitment issues at all, they also had fast shipping. seems like they aim to put out affordable, quality stuff. not cheap ebay stuff anymore imho

[Azurna]

When you do get them, take the car to a muffler shop and weld them to not be annoyed of air leak sounds. I did it and had them weld v-band claps for easy removal later.

No matter how tight I made the connection pipes clamp to the headers they always ended up leaking after a week.

[1LE_ROLL]

Originally Posted by Azurna

When you do get them, take the car to a muffler shop and weld them to not be annoyed of air leak sounds. I did it and had them weld v-band claps for easy removal later.

No matter how tight I made the connection pipes clamp to the headers they always ended up leaking after a week.

Just tightened them all again this weekend actually haha. header to motor sealed well and had no leaks but im chasing down random ones with the band clamps.
how much did it cost to do the v band conversion? not a bad idea

[Azurna]

Depends on the shop doing the work. I showed up and they did the weld job and sold me the clamps for $80 to give you an idea.

['15 LS3-1LE]

I bought my car with long tube headers, no cats and no mufflers. I made the dealership put some high flow cats on and tune it for legality concerns and they complied but now, 7months later I've got a jingly shit fallin apart noise from the right side cat. Smfh. Lame. Went to PhasTek this afternoon and picked up a set of highflow cat pipes pretty cheap, designed for shorties, really freakin hope they hold up better. Btw, I believe shorty headers have a better power gain curve low to mid range as in for normal daily traffic driving. Long tubes have a better result on the dyno but the difference is mid to high rpm range which is a bit much for a daily driver. Mine dynos at 415 rwhp with a K&N cai and LongTubes, hf cats straight pipe otherwise.

[frey.199]

Originally Posted by '15 LS3-1LE

I bought my car with long tube headers, no cats and no mufflers. I made the dealership put some high flow cats on and tune it for legality concerns and they complied but now, 7months later I've got a jingly shit fallin apart noise from the right side cat. Smfh. Lame. Went to PhasTek this afternoon and picked up a set of highflow cat pipes pretty cheap, designed for shorties, really freakin hope they hold up better. Btw, I believe shorty headers have a better power gain curve low to mid range as in for normal daily traffic driving. Long tubes have a better result on the dyno but the difference is mid to high rpm range which is a bit much for a daily driver. Mine dynos at 415 rwhp with a K&N cai and LongTubes, hf cats straight pipe otherwise.

Wow you got 415 out of that? I got a big cam in SC cam though and only 430.

[Warship2k15]

Originally Posted by '15 LS3-1LE

I bought my car with long tube headers, no cats and no mufflers. I made the dealership put some high flow cats on and tune it for legality concerns and they complied but now, 7months later I've got a jingly shit fallin apart noise from the right side cat. Smfh. Lame. Went to PhasTek this afternoon and picked up a set of highflow cat pipes pretty cheap, designed for shorties, really freakin hope they hold up better. Btw, I believe shorty headers have a better power gain curve low to mid range as in for normal daily traffic driving. Long tubes have a better result on the dyno but the difference is mid to high rpm range which is a bit much for a daily driver. Mine dynos at 415 rwhp with a K&N cai and LongTubes, hf cats straight pipe otherwise.

I must strongly disagree.Shortys if any gain at all would be in the upper RPMs because of the short runner length.
The only headers on our Camaro’s to give any appreciable gain are long tubes.NA 1 7/8 have a 20-35 hp gain and have a greater torque through most of the rpm range.

[theragtopguy]

I went with BBK long tubes and quick flow cats hooked up to my stock NPP exhaust. I also had them put bung spacers (just like the old spark plug foulers in the old days) in the back 0-2 sensors, this pulls the 0-2 sensor out of the direct exhaust and keeps the CEL light off. I also picked up the SCT x4 tuner with lifetime tunes from Dyno Steve at RDP.

Frigging Camaro sounds like a jet now when I jump on it between the CAI and the pipes. It's fast as hell and I love going through those gears.

[Modernmusclecar]

Originally Posted by Warship2k15

I must strongly disagree.Shortys if any gain at all would be in the upper RPMs because of the short runner length.
The only headers on our Camaro’s to give any appreciable gain are long tubes.NA 1 7/8 have a 20-35 hp gain and have a greater torque through most of the rpm range.

No....they fall off up top on the dyno and at the track. 1.5 to 2 cars behind with shorties...dead even with longtubes vs a fbo 5.0.

[LCPLPunk]

Interesting, TONS and TONS of people with longtubes with daily drivers and LOVE them, but apparently shorties are better, who knew? :(

[Modernmusclecar]

Originally Posted by LCPLPunk

Interesting, TONS and TONS of people with longtubes with daily drivers and LOVE them, but apparently shorties are better, who knew? :(

I don't see where anybody is saying that. But I will say with cats shorties are not as bad as people that have never had them are saying.

[Winemedineme69me]

I went with the DNA motoring long tubes with the off road pipes that replace the cats. Fit and finish is excellent and it's stainless steel. They went in perfectly like a glove save sound awesome with my NPP exhaust on my 2014 Camaro SS LS3.

You can get them here. Make sure you buy multi layer steel header gaskets, o2 sensor extensions, manifold bolts and some nice exhaust 3" band clamps and heat boots for your spark plug wires so they don't melt when touching the headers.

https://www.ebay.com/itm/153712874186

Here's a sound clip of my exhaust.

https://youtu.be/HVTCoIYJGhU

[morepowerjoe]

The guy that just did my bolt in crossmember told me I wouldn't get any extra horsepower from long tube headers. Now is he crazy or what. He builds race cars so I want to believe him but I just can't believe what he said. I know another guy who builds race cars and he said you can sometimes get 80 horsepower from long tubes. Who's right?

[LCPLPunk]

Well, the first guy is wrong, the second guy, I guess its' possible, but probably on a forced induction build. I don't think adding longtubes to a ZL1 gets you 80...so it would have to be a pretty extreme build.