Exhaust
GT3 Muffler Adapter Kit for 981
Rated 5.0 out of 5,Listed for981GT4, Clubsport, Spyder, Boxster / Cayman
Sale price$5,368.50
Regular price
$5,965
−10% · Black Friday
You save $596.50 · ends Nov 30
Made to order
Welded parts (mufflers, headers) usually ship in about 7 business days. We call you if that changes.
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30-day Dundon GuaranteeLove it or send it back within 30 days.
Dundon Motorsports stands behind our products with a 30-day love-it guarantee. We are confident in the quality and performance of our upgrades, but if for any reason they don't meet your standards or help you push your performance on track, you can send them back within 30 days.
Overview
Our GT3 Muffler Adapter kit comes with everything you need to mount a GT3 muffler on your 981 except the muffler and tips!
Improve the sound and performance of your 981 Boxster or Cayman with our GT3-style muffler adapter. In stock form, the 981 exhaust cannot handle the thermal load of a modified 3.8L GT4 engine, and can have big problems with heat-soak resulting in high oil and coolant temperatures. The larger 2.5" tubing helps evacuate the exhaust gases to reduce heat soak and improve the performance of your engine while also providing a great sound upgrade!
With options to add sport catalytic converters and valves, you can add your choice of GT3-style muffler to round this package out. Whether it's a stock 997/991 GT3/RS center muffler, or a Dundon Lifetime Loud or Quiet muffler, this kit is compatible with all of them. Please reach out if you have specific fitment questions.
The kit is made with 2.5" 321 Stainless Steel for a lifetime of trouble free use.
Pair with our GT4 Clubsport Headers and a 991 GT3 Muffler for a complete exhaust upgrade.
- 2.5" 321 Stainless over axle pipes
- GT3 Muffler Bracket & adapter
- GT3 Muffler Straps
- All necessary hardware
- Optional high flow catalytic converters
- Optional valve sections (to retain Sport Exhaust functionality)
Specs
- Part numbers
- Manual / With Valves / With Sport Cats 100-30157
- Manual / Without Valves / Straight Pipes 100-30160
- PDK / With Valves / With Sport Cats 100-30161
- PDK / Without Valves / Straight Pipes 100-30164
- Brand
- Dundon Motorsports
- Listed for
- 981 · GT4, Clubsport, Spyder, Boxster / Cayman
- Condition
- New
- Transmission
- Manual · PDK
- Valves
- With Valves · Without Valves
- Cats
- With Sport Cats · Straight Pipes
What owners say
450+ independent reviews
Average 5.0 out of 5. Average from verified buyers, collected by Loox.
Recent reviews from other Dundon owners
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Rated 5 out of 5.
Hey guys, I have a Racing Yellow 2016 Porsche Gt4. 6yrs. With Dundon Headers. The best!!! Very 1st mod to my track car. Installed at Dundon shop.I plan to never sell this car it is not stock. FUN car. Thanks you all at " Dundon Motorsports "
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Rated 5 out of 5. Verified buyer
I received the Accessport device very quickly from Dundon, and found the process of uploading the ECU maps to be a simple and smooth process. I previously had OTS tunes from Softronic and Cobb, but I have to say.. what a remarkable change the custom one from Dundon has over the others. The sup...
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Rated 5 out of 5. Verified buyer
These guys are the best!!!! I’m beyond happy with the quality and service I got from Dundon. I’ll forever come back! Thank you guys