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

Quantity:

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 ***

REVIEWS

I wanted to thank you for the excellent customer support,the smooth transaction, and the quick delivery of my Enkei RPF1 16x8 wheels. I would recommend your company to anyone interested in good old fashion great customer service. Thanks again and look forward to doing business with you again in the future.

-- Jack

After reading many other positive reviews on both the GWR and Miata forums I finally decided to buy this product. My main concern for many months was whether or not I was up to the task of installing the header. But with the excellent instructions on Brian's forum as well as several Miata forum threads it turned out easier than I expected. After receiving notice that the header would arrive on a Friday afternoon, I began the disassembly process. After about 3 hours I had the stock manifold out. Later that afternoon the new catted header arrived right on schedule. And it is a thing of beauty. I opted for the stainless version. Installation on Saturday morning took another 3 hours, although I could have shaved some time off of that but I was actually enjoying the process of double checking torque values and cleaning up my engine compartment. I already have the GWR catted midpipe, so that connection was a snap. I put everything back together, reconnected my battery, and went for a drive. NO CODES! Nice throaty sound with my RSII muffler, and a significant boost in power and low/mid torque. Another happy camper here. I since have added a M-E tune and I feel I have realized all of the gains that Brian has achieved on his 2012 project Miata. I've put several hundred miles on my Miata since the install with zero problems. This is the car that Mazda should have built all along. Thanks Brian.

-- Ron P.