PDA

View Full Version : Got headers and hate the rasp?


Len013091
06-22-2011, 07:50 PM
I've had a custom 3" magnaflow system and gotten many questions about it over on E46f. I figured I'd start this thread here so I can post pictures and videos of the system(s, I've made a few) as well as answer questions as best I can.

Here's the videos:

http://www.youtube.com/watch?v=lSgZr9TD8kQ

http://www.youtube.com/watch?v=tdOPzUBsVBY

And one with a converter in the system... excuse the wheels.

http://www.youtube.com/watch?v=20VGCSbcNRw

As far as the materials are concerned, you'll need the following:
3" U bend
2 x 2 1/4" U bends
8' stick of 3" pipe
5x8x14" 3" Center-Center Muffler OR 3" catalytic converter (as shown)
5x8x18" 3" Offset-Center Muffler
Tips of your choice
2 OEM exhaust flanges
2 OEM exhaust gaskets


http://img855.imageshack.us/img855/7950/img00145201010241402.jpg
http://img225.imageshack.us/img225/9039/img00146201010241402.jpg
http://img225.imageshack.us/img225/2771/img00147201010241403.jpg
http://img193.imageshack.us/img193/8771/img00148201010241403.jpg
johnrando
06-22-2011, 09:02 PM
Thanks for the info. This might be good for a DIY or in the Project thread.
Len013091
06-22-2011, 09:38 PM
I plan to do a DIY writeup the next time I build a system, taking pictures along the way. I'll eventually redo this one once my engine swap is completed.
az3579
06-23-2011, 02:57 AM
I'll eventually redo this one once my engine swap is completed.

Must... have... details! What engine?
Len013091
06-23-2011, 08:28 AM
Must... have... details! What engine?

Just a regular old S54 swap
danewilson77
06-23-2011, 09:12 AM
Just a regular old S54 swap

Just...hehe
Hornung418
06-23-2011, 04:04 PM
You know...the run of the mill, everyday S54 Engine swap...Please do us a favor and put headers, no cats and a single resonator and muffler...also Velocity Stacks...then drive up to the meet next year...so we can all take turns riding in it...Just a lil favor, NBD, right? ;)

The car sounds great, Len!
ZHP-FTW
06-27-2011, 11:49 AM
I think it sounds good, but i don't mind some rasp. Does that 3 in change performance at all or just sound?
Len013091
06-28-2011, 01:46 PM
I went to a single 3" simply because of ease of installation, muffler choice, and the single pipe helps tone down the rasp. The cross section of the single 3" is marginally larger than the stock daul ~2" pipes. (7.06 sq/in vs 6.28 sq/in)