header info??

[reaper ws6]

i was thinking on buying some headers and a y pipe for my m6 z28 it all ready has a slp catback exhaust i wanted to buy peacesetter midlenght headers with slp y pipe.. are longtube way better then midlenght and are midlenght any good? i heard dat longtube give you clearance issues i dont really want dat couse i live in kinda a hill and i want to lower my z28 also can you used the stock cat's with headers and slp y pipe or do i have to buy them two?? thanks for any help

[basballny2]

no you cant use the stock cats with long tubes.....get longtubes, mid-lengths offer minimal gains. if ur slp y-pipe is fitted for stock exhaust manifolds, yes, you need to buy a new y-pipe.

[reaper ws6]

do longtube give you bad clearance?? i dont want them to be hitting all the time i go over a bump because i want to put slp springs and shocks any feed back on them??

[basballny2]

get strano's not slp and if you take it easy you'll be fine. get a brand which tucks up nicer such as ARH or Kooks....SLP has severe clearance issuses

[pajeff02]

Kooks LTs and catted Y -- both tuck up under the car nicely. The only headers I have heard complaints on are the original SLP's for hanging low and the e-bay offbrands for having the O2 sensor bungs pointing downward.

[c5z28]

Headers won't scrape your biggest clearance issue is the pipe that goes under the the driver side before the merge-you know the flat one when you have right now. My 3" with cats (cats produce even less clearance) still very rarely scrape.

[Cutlass]

Mid length headers are an appearance mod, go longtube!!

[c5z28]

Mid length headers are an appearance mod, go longtube!!

they are better than shorties

[Cutlass]

hmmm...I was thinking pacesetter midlengths are actually shorties. aren't they?

[reaper ws6]

yeah thats true i only herd the clearance prob with slp headers.. you see i wanted to go all slp on my z28 i went to this performance shop and they told me dat slp headers make the most power but were bad on clearance suck!!

[Cutlass]

^^^We are gonna help change your mind around here. SLP sucks at almost everything LS1 related. There are only a few SLP products that are worth a darn and even thats debatable.

[basballny2]

yeah thats true i only herd the clearance prob with slp headers.. you see i wanted to go all slp on my z28 i went to this performance shop and they told me dat slp headers make the most power but were bad on clearance suck!!

tell your performance shop to show you dyno sheets of SLP headers outperforming other brands. its all advertisment, all long tubes given the same diameters (1 3/4'') for example will all produce AROUND the same numbers given 2-3 in either direction.

[Vertiviper]

SLP headers are the worst design ever.... just go get Kooks or ARH and do it right, do it once.

[basballny2]

SLP headers are the worst design ever.... just go get Kooks or ARH and do it right, do it once.

but SLP gives you more HP!!!

[basballny2]

also, if clearance is your concern on the y-pipe i would go with kooks

[reaper ws6]

also, if clearance is your concern on the y-pipe i would go with kooks

naw dude my clearance concern is with the headers..also today i took out my crossmember or the tunnel braces not sure wats it call but is under the y pipe were it meats the catback exhaust... because wen i install the slp exhaust it started to make my y pipe shake more and hitt it at low rpm it sounded raspy so i took it out and is much better no rasp at all but was dat i good idea?

[basballny2]

......ur crossmember has nothing to do with rasp.....the rattling can be attempted to be fixed with a mufflex bump stop......also try unloading the exhaust with a buddy and putting some 1/4'' rubber in there, it will prevent the exhaust from loading and un-loading and hopefully prevent anymore rattling you have

[reaper ws6]

thanks for the help bro..also do you know if longtube peacesetter headers are good? i dont really want to spend a lotte off money because kook are a lott!!

[basballny2]

pacesetters are the best budget header....get them coated if you have the money

[reaper ws6]

do they give you good hp numbers??...