Mufflers

[wolf k]

I plan on installing undercar exhaust with side exit on my FIA. The space where the muffler fits is small (13" x 9"). I found two mufflers that would fit. A turbo style by Cherry Bomb and perforated tube/packed style by Magnaflow. Which of the two would be quieter?

[vector1]

louder out the back might be better then resonating under your arse.

[wolf k]

True, ERA designed rear suspension supposedly does not have the space available for rear exhaust.

[DanEC]

Look at Spintek mufflers. They make a low profile (only 3 in. thick) model that fits in the space. I don't have my printouts with me but for the model number but this is what I plan to use for undercar exhaust.

I don't know this for a fact but the Spintek muffler may be quieter than the others. It looks like a conventional baffled muffler. But again I haven't actually used them yet.

[strictlypersonl]

Any under-car muffler must be short enough to fit between the outriggers - about 14.9" between them.

[Tom Wells]

wolf k,

I use the Spintechs too. Here's their web site: SpinTech Performance Mufflers - Mufflers - SpinTech Performance Mufflers

I bought an off-the-shelf size from them at first; turned out to rattle because I didn't allow for movement of the mufflers while the car is moving. It's been a long time (eight years?) but I dimly remember needing at least 3/4" clearance between the muffler and anything else solid. A bit more is probably better.

When I got my second set, Spintech made them to my specs for a very reasonable extra fee, and they're still doing a great job eight years and 27K miles later.

Mine exits before the rear tires so it's still noisy, but it's a lovely sound!

Tom

[Bobcat]

FWIW , I have had the Spintech mufflers on my F150 , 5.4 L engine for about 5 years. They have a great sound , but aren`t cop callers . WOT is deep and loud , but not objectionable .... much better than Flowmasters and nowhere as loud . Should sound good on a Cobra .

[wolf k]

Spintech did not have any off the shelf that would fit, decided to go with Magnaflow.