Good-Win Racing Mazda Performance Parts

Miata Muffler with DUAL TIPS by Racing Beat for Auto Trans

1999-2003 · Automatic Transmission

Miata 1990-2005 · Exhaust · Mufflers

Part Number: 11-1015

Year: 1999-2003

Application: Automatic Transmission

Price: $374.00


Miata Muffler with DUAL TIPS by Racing Beat for Auto Trans
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Miata mufflers come in many flavors and this Racing Beat Miata Muffler includes Dual Tips and all stainless steel construction. This Miata muffler uses an inlet tube that features a thick, cast-stainless steel flange that provides excellent gas sealing capabilities. Additional strengthening for the inlet and outlet tubes on this Miata muffler is provided by supporting gussets and hanger support rods. Stainless steel outlet tubes feed a double-walled tip for an aggressive and sporty Miata muffler look. The two 3.5-inch exhaust tips are manufactured using polished 304-stainless steel and are slightly oval in shape to provide a perfect balance and proportion with the Miata's rear bumper.

Applications: 1999-03 Miata (except manual transmission models).

Muffler Fitment on Auto Transmission Models

Due to ongoing discrepancies with regards to the mounting flange bolt-hole spacing on automatic transmission cars, we are suggesting that you measure the flange bolt-hole spacing prior to placing an order. (Why Mazda decided to use a different flange on the AT version has left us baffled! Sorry for the extra work required to determine the correct exhaust for your application, but we'd rather have you order the correct muffler and avoid the hassles and expense of returning the wrong part.) If you have any questions about these measurements, please give us a call for assistance.

We request that you measure the flange bolt-hole spacing on your car to confirm that you will be obtaining the correct muffler for your application. The measurement of concern is the spacing of the bolt holes on the flange between the muffler and the connecting pipe section.

Note your measurements as follows:

Automatic Transmission - 3.46" (88mm) center-to-center

Manual Transmission - 4.33" (110mm) center-to-center

If your measurements match the specifications for "Auto Transmission", then you have selected the correct product listing. If your measurements match the specifications for "Manual Transmission", then you will order Power Pulse Exhaust for "Manual Transmission."

BRIAN'S APPLICATION NOTES: Our other brands of exhausts, such as RoadsterSport, simply slot the flange holes to avoid this potential issue.

*** Product images may differ from actual product appearance ***


Just wanted to thank you guys for the great stuff and great work done on my MX5 club yesterday. I could feel the difference in sound and performance right away! It drives and corners awesome now. Can't wait to tell my friends about you guys. I'll be keeping an eye on your web site for other goodies and events as well. Can't wait to try my new suspension out on a auto cross. Will definitely be trying it on some twisty roads this weekend. Just can't wipe that smile off my face when driving this car. Thanks again guys!

-- Paul Young

Roadstersport II was a great purchase, easy install, and sounds great.

-- Denny