GRIMM SPEED GRM.1099.1.0 Ej Bolt Up Pipe Raw 840410811069 Grimmspeed

( Brand: Grimm Speed ), ( Part Type: Pipe Bolt ), ( Manufacturer Part Number: GRM.1099.1.0 ), ( UPC: 840410811069 )

Review GRIMM SPEED Grimmspeed Ej Bolt Up pipe Raw Stainless

Introducing the GrimmSpeed EJ Bolt-Up Raw Exhaust Bypass Pipe (part number: GrimmTech-grm.1099.1.0), a high-performance aftermarket solution for Subaru Impreza WRX and STI models with stock catalytic converters. This bolt-up pipe is designed and manufactured by GrimmSpeed, a renowned name in the Subaru aftermarket scene, ensuring top-tier quality and fitment.

The GrimmSpeed EJ Bolt-Up Raw Exhaust Bypass Pipe is an essential component for those seeking to free their Subaru's exhaust system from the restrictive factory catalytic converters. This pipe replaces the stock section between the downpipe and the catalytic converter, effectively removing the catalytic converter from the exhaust flow.

This raw bypass pipe is made from premium 304 stainless steel, ensuring durability and resistance to corrosion. The pipe features a polished finish, which not only looks great but also helps in reducing heat transfer to the undercarriage.

Installing this bypass pipe is a straightforward process. GrimmSpeed has designed it as a bolt-up solution, which means it uses factory mounting points for easy installation. No welding or complex fabrication work is required.

By removing the catalytic converter, this bypass pipe allows for freer exhaust flow, resulting in improved engine performance and increased power output. This can be particularly noticeable in the mid to high RPM range. Additionally, the freer exhaust flow contributes to a more aggressive exhaust note, adding to the driving experience.

It is important to note that installing a raw bypass pipe may result in an increase in exhaust emissions. If you plan on using this pipe on a daily driven vehicle, it is essential to check local laws and regulations regarding emissions and obtain any necessary modifications or permits.

In summary, the GrimmSpeed EJ Bolt-Up Raw Exhaust Bypass Pipe (part number: GrimmTech-grm.1099.1.0) is a high-quality, bolt-on solution for those looking to free their Subaru Impreza WRX or STI's exhaust system from restrictive catalytic converters. Made from premium 304 stainless steel and featuring a polished finish, this bypass pipe is a must-have for those seeking improved engine performance and a more aggressive exhaust note.

Buying a GrimmSpeed EJ Bolt-Up Raw Exhaust Bypass (GRM.1099.1.0) comes with several pros and cons that every potential buyer should consider before making a decision.

1. Increased Power: The GrimmSpeed Bolt-Up Raw Exhaust Bypass is designed to improve the performance of your Subaru by reducing backpressure in the exhaust system. This can lead to increased horsepower and torque, making your vehicle more responsive and faster.

2. Improved Sound: The bypass also changes the exhaust note, providing a more aggressive and sportier sound. Many Subaru enthusiasts appreciate the deeper and more resonant exhaust note that comes with this upgrade.

3. Durability: GrimmSpeed is a well-known and reputable brand in the Subaru community, and their products are known for their high quality and durability. The Bolt-Up Raw Exhaust Bypass is no exception, and it is built to withstand the rigors of daily driving and track use.

1. Cost: The GrimmSpeed Bolt-Up Raw Exhaust Bypass is a premium product, and it comes with a premium price tag. It may be more expensive than some other aftermarket exhaust options, which could be a deterrent for some buyers.

2. Installation: Installing the Bolt-Up Raw Exhaust Bypass requires some mechanical skills and experience. While the installation process is not overly complicated, it may be more involved than some other exhaust upgrades.

3. Loudness: The GrimmSpeed Bolt-Up Raw Exhaust Bypass can be quite loud, especially when compared to the stock exhaust system. This may not be a concern for some buyers, but it could be a drawback for those who prefer a quieter exhaust note.

The GrimmSpeed EJ Bolt-Up Raw Exhaust Bypass (GRM.1099.1.0) is an excellent option for Subaru enthusiasts who are looking for increased power, improved sound, and a more aggressive exhaust note. However, it comes with a premium price tag and requires some mechanical skills for installation. Additionally, the loudness of the exhaust may not be suitable for all buyers. Ultimately, the decision to purchase the GrimmSpeed Bolt-Up Raw Exhaust Bypass depends on your individual preferences and priorities.

If you are looking for a high-quality exhaust upgrade that provides increased power, improved sound, and a more aggressive exhaust note, the GrimmSpeed EJ Bolt-Up Raw Exhaust Bypass (GRM.1099.1.0) is an excellent choice. However, if you are on a budget or prefer a quieter exhaust note, there may be other aftermarket exhaust options that better suit your needs. It is important to do your research and consider all the pros and cons before making a purchase.

part # grm109910 prices

• $550.00-$600.00

specifications frazzlekits:

• brand: Grimm Speed
• part type: Pipe Bolt
• manufacturer part number: GRM.1099.1.0
• upc: 840410811069

payments frazzlekits:

• credit card: Visa
• other
• wallet: Google-pay

offer frazzlekits:

• started: May 1, 2026
• quantity: 8
• sold: 0
• options: Ship-to-home
• availability: In Stock

seller frazzlekits:

• # reviews: 18083
• rating: 99.4%

general frazzlekits:

• Car Truck Parts Accessories > Exhaust Emission Systems > Exhaust System Kits
• condition: New

returns frazzlekits:

• policy: Returns Accepted
• time: 30 Days
• paid by: Seller

shipping frazzlekits:

• carrier: UPS
• service: UPS Ground
• cost: $13.99
• transit: 3-6 Days
• type: Fixed
• class: Standard