Does anyone have experience with this exhaust? I'm looking for something different than Borla, Corsa, GMMG etc. thanks

 

Unless you're going with at least a cam, as well as the headers and a 3" Y-pipe - a 4" Mufflex is overkill and is probably overkill for even that minimum set up.

Won't hurt anything to get it, just aren't going to see any benefit for the hassle involved with the larger I-pipe..

Good Luck

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'01 Mystic Teal Z28
A4/3.23/Leather/T-Tops
Mods List Here

12.46/108.87/1.75 60'
319 rwhp/349 rwtq
www.MysticZ28.com

NorCal LS1/LT1

"To play it safe is not to play"

 

If you don't any major engine work planned the 4" will definately be overkill. I'd say if you're doing turbo, agressive cam/heads then go for it. Just make sure the rest of your exhaust is as free flowing. There's a clip of the 4" Mufflex in my sig.

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'99 Z28 M6
Mods: Click here!
Best Time: 13.3691 @ 106mph (no N2O)
60ft: 2.12
AOL IM: Bubblesnaps

 

I ran Mufflex 4" on my 396 stroker LT1. It is by far the best exhaust for the LT1. However, as previously stated, it's not really needed unless you're at least going with a bigger cam, better heads, etc. However, I just put a 3.5" Mufflex on my 98 Trans Am, and it's awesome. I do have all the bolt ons (long tube headers, etc.) and a cam. If you're planning big mods in the future, you won't be disappointed with it.

 

I just put on the 4" and I love it. Its the same amount of money so I did it. Now all I have to do is find a pair of headers and ypipe with cats to fit it. Any suggestions?

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1998 Black Camaro Z28 A4
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MTI Carbon Fiber Lid
Holley Power Shot Filter
FTRA kit
BMR STB
Mufflex 4" catback w/Spintech
NGK tr55 plugs
MSD wires

 

If you're looking for the best flow for a really high horsepower car Mufflex sells a huge 3" Y pipe for the Hooker LT's. Though if you don't need the massive 3" any other headers/Y pipe combo will fit with the Mufflex 4" since the I pipe is reduced to stock size right before the Y.

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'99 Z28 M6
Mods: Click here!
Best Time: 13.3691 @ 106mph (no N2O)
60ft: 2.12
AOL IM: Bubblesnaps