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Need help with exhaust manifold

1K views 4 replies 2 participants last post by  ThatTJG 
#1 ·
Looking for reliable brand that i can trust for my 2014 wrx and could use some ideas so I don't waste my money on bad parts. Also looking for an uppipe
 
#2 ·
any of the reputable aftermarket companies are all within the same margin of performance & reliability.

perrin, cobb, invidia, turbo xs, tomei, grimmspeed... list goes on. they are all about the same, except sound of course.

just stay away from Ebay and youll be fine. do a google search of sound clips to see what one you like the best.

same goes for the up-pipe.
 
#3 ·
I was watching alot of diffrent YouTubes on the subject and I thought Tomei sounded good in till some had problems with it cracking from heat so idk about all that and I went with cobb but they don't make headers. Alot of ppl were saying equal length is the way to go for better power gains and onay down fall is the growl isn't ad strong
 
#4 ·
most of the cracking you read about usually boils down to "user error". either due to improper wrapping creating hotspots, or other improper installations.

alot of these items are mass produced and there are bound to be defects. if you have only read of a few failures out of the hundreds of thousands sold, i consider that pretty good odds.

improper: both tubes are wrapped together creating pockets of heat adding stress to the metal.
https://scontent.cdninstagram.com/h...8/e35/12298775_768185086642796_77517104_n.jpg

proper: each tube wrapped individually. dont cheap out, do it the right way.
http://i602.photobucket.com/albums/tt108/Unabomber007/DSC_0343.jpg



unless you plan on pushing over 400hp, you wont see any real benefit from equal length headers. but if you are, the killer b holy header is your best option.
 
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