The reason why people say Magnaflows are raspy is because they get the 14816, which has a very small can. The draw of nice large exhaust tips really blinds people to the fact that it's a 2.25" inlet muffler with very little sound attenuation ability.
Get a muffler with a larger can, and it will not rasp. However, an inexpensive dual/dual universal muffler really doesn't exist.
Universal dual/dual mufflers are made for American cars, which put pipes on the outer edges of the car. For reasons of easy fabrication and the fact that there's plenty of space in the transmission tunnel, the spacing between the pipes on the muffler casing is HUGE, negating any possibility of making them fit and look normal on an E30 rear valance.
Two glasspacks welded side by side will get you the form factor you need, but it will be loud, raspy, and obnoxious.
Your best bet, if you absolutely MUST use the catalytic converter you have, and you need to get things done for less than $300, is to get an Ebay muffler and pay a muffler shop to adapt it to your cat.
Get a muffler with a larger can, and it will not rasp. However, an inexpensive dual/dual universal muffler really doesn't exist.
Universal dual/dual mufflers are made for American cars, which put pipes on the outer edges of the car. For reasons of easy fabrication and the fact that there's plenty of space in the transmission tunnel, the spacing between the pipes on the muffler casing is HUGE, negating any possibility of making them fit and look normal on an E30 rear valance.
Two glasspacks welded side by side will get you the form factor you need, but it will be loud, raspy, and obnoxious.
Your best bet, if you absolutely MUST use the catalytic converter you have, and you need to get things done for less than $300, is to get an Ebay muffler and pay a muffler shop to adapt it to your cat.
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