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Boost Logic

Boost Logic 991 GT3 Side Muffler Bypass Pipes

In stock in the US

The Boost Logic 991 GT3 Side Muffler Bypass Pipes are designed to remove the restrictive factory side mufflers, freeing up sound, response, and character without compromising drivability. Crafted from premium materials and engineered for precise fitment, these bypass pipes deliver a sharper, more aggressive exhaust note that matches the GT3’s motorsport DNA. Expect increased volume, crisper throttle response, and a raw flat-six scream under load, while maintaining clean fitment and OEM-level refinement. Whether paired with a factory center section or an aftermarket exhaust, these bypass pipes transform the driving experience instantly. Features: Direct bolt-on replacement for factory side mufflers Significant increase in exhaust volume and presence Precision fitment with no cutting or modification required

Import details

US list price
US$ 1,499
Shipping weight
6.804 kg
NCM code
8708.92.00
Import duty rate
18%

Silenciosos e tubos de escape. Classification subject to confirmation by the customs broker.

RaceArt imports under a formal declaration, clears customs and delivers with a Brazilian invoice. Fixed price, our warranty, no value limit.

Parts (US list price)$1,499 converted at R$ 5.6368 (FX rate plus 4% spread)
R$ 8.449,56
International freight6.8 kg by express air — $99
R$ 556,12
Import duty (II)Tariff rate by NCM code on the customs value. NCM: 8708.92.00
R$ 1.621,02
IPI (excise)Charged on customs value plus import duty. Recoverable as a credit if you file under Lucro Real or Presumido.
R$ 531,34
PIS on imports2.1% of the customs value
R$ 189,12
COFINS on imports9.65% plus a 1% surcharge on chapter 87 auto parts
R$ 959,10
Siscomex feeFee per declaration plus line items
R$ 184,23
Customs broker + storageBroker fees, handling and warehousing at the bonded terminal
R$ 2.050,00
ICMS on imports (SP)18% gross-up on everything above. Rate of the destination state.
R$ 3.191,81
Domestic freightDelivery from our warehouse to you, once cleared
R$ 180,00
RaceArt margin28% — covers warranty, technical support and currency risk
R$ 5.015,45

Final price

R$ 22.927,75

taxes: R$ 6.492,40 (28%)

2.71× the US list price

FX rate R$ 5.6368

Estimated delivery: 7 to 14 days after confirmation.

  • Part cleared through customs, with a Brazilian invoice and warranty handled by RaceArt.
  • Fixed price: nothing extra on delivery. Currency and clearance risk are ours.