Exhaust› Exhaust Pipes, Systems and Components

Billy Boat Performance Exhaust

Tri-Flo L98 Cat-Back Exhaust System

$1,439.99

SKU: 108255-1

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Billy Boat Performance Exhaust Tri-Flo L98 Performance is a cat-back exhaust system. The polished 4 1/2" quad rolled oval tips provide an aggressive look.
Show original supplier description
The Billy Boat Performance Exhaust Tri-Flo L98 Performance cat-back exhaust system is specifically engineered for 1986-1991 Corvette C4 models equipped with the L98 engine. Constructed from high-grade T304 stainless steel, the exhaust features mandrel bends that promote smooth airflow and resist corrosion. The system is finished with polished 4 1/2" quad rolled oval tips, contributing to a sleek and aggressive aesthetic that complements the Corvette's design. This exhaust system comes with a limited lifetime warranty, ensuring long-term reliability and protection against defects in workmanship.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandBilly Boat Performance Exhaust
Part Number108255-1
CategoryExhaust
5,000+ Trusted brands
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(760) 282-4645 hello@motormia.co

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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