Aixtreme89

I want to know if SLP Longtube headers are much better than MAC, or BBK longtube headers. Has anyone seen a dyno results comparing them? There much more expensive but I think they may be worth it. Also I am going to need the o2 wire extensions right? Also if I get the SLP longtubes with the SLP high flow cats, do you think I will have any problem passing emisions? Thanks All

David_K

emissons no . but it is illegal to move the cats further backwards than they are stock. cuz it takes heat in oreder for the cats to work properly

Aixtreme89

I also need O2 wire extensions right?

I remember in the Fox bodys that the check engine light would come on because the o2 sensors wouldnt heat up properly to fuction right. Is this true in the 99-04 mustangs?

Valek

SLP's LT include the extensions and bolts and gaskets, some cool stickers too. SLP's are better than BBK and MAC they are 100% stainless steel.

blueangelfightr

SLP makes a better product then everyone else IMO. If price is a problem, the other brands aren't bad, just not the same. lol.

rbstang

yea what the hell happened to all the slp items on mustang tuning it used to be 359 for a catback now its 400 and headers are now 700 instead of being around 600 its insane. Im not going to buy slp exhaust now.. its to expensive

sonicsnake03

personally i think slp products are made the best and produce the most hp. Yes they are ungodly expensive but remember, you get what you pay for. I will personally always put slp on my car. Just have to save up everytime i want something.lol.