kphu

iTrader: (8)

I took my car to a custom exhaust shop today, they fabricated a custom y-pipe in about an hour for $370 installed including tax. Not bad considering the magnaflow would have costed me $380 + install. They recommended to take the cat out at the end since no sensor after that so i went with it.

Sampak

Hmm, mandrel or crush bends?

kphu

iTrader: (8)

I don't know what mandrel means but the machine they had kepted the tube perfectly round during the bend so I'm assuming Mandrel as oppose to crush.

tmf2004

iTrader: (15)

thats a muffler not a convertor... looks good though

yada

Do you guys get new cats as well as the pipe?

NorthStyle

iTrader: (16)

Are you asking if they come with the pipe? ...or are you asking if people purchase them separately, with the pipe?

yada

Separately changing the cats

NorthStyle

iTrader: (16)

Ahhh... gotcha. Well, when I purchased my replacement pipe I just went ahead and ordered new cats since I'll be changing out the entire exhaust from the headers back. I figured I might as well since the car is closing in on 140K miles.

RoMiLex

Never understood why it went down to one just to split back out to 2 again. Supporting 300hp seems like you'd want true duals all the way with either a X-pipe, H-pipe or a 2 in 2 out muffler/resonator to equalize the pressure..

Sampak

Ah, ok that's a great deal then! Crush bent piping is usually cheaper for you and the shop I believe (e.g. 2.5" pipe gets bent by "crushing" the inside area and often leads to almost 0.25" to 0.5" of lost diameter).

Mandrel bends are done on a much, much larger mandrel $$$ machine (from work done on one of my previous cars) and using a different method and makes the pipes keep their diameter around the bends, but can be limiting when dealing with tight, close together bends.

firelizard

iTrader: (1)

I ordered the Magnaflow direct-fit and the correct part number arrived but it was a few inches too short, the way people described SC430 Y-pipes. I got on the horn with Magnaflow and they confirmed that the SC and GS part numbers were the same in their catalogue as well as AllPart (their OEM part catalogue). I had the exhaust shop extend the mid-pip to meet the Magnaflow piece and sent pictures of the process to Magnaflow. I'll update when I hear back from them.

NorthStyle

iTrader: (16)

Sucks to hear that it didn't fit but I tried to warn you guys that the SC430 and GS430 y-pipes aren't compatible. As for Magnaflow, they should've checked harder as the part numbers between the two are different as well: SC430 (1741050340) and GS430 (1741050330)... They shouldn't be advertising this product as cross compatible.

SweetS160

I ended up adding a flex section to extend the pipe

rwheelz

iTrader: (2)

Just ordered a Megan Y-pipe for SC430 and will be adding the extension to fit it onto my GS400.

SweetS160

Post some pics when you get it put in