Skip to product information
1 of 4


PLM 4-1 RF Exhaust Header w/ Megaphone Collector - B-Series Engine

PLM 4-1 RF Exhaust Header w/ Megaphone Collector - B-Series Engine


Regular price $345.00
Regular price $399.00 Sale price $345.00
Sale Sold out
Shipping calculated at checkout.
PLM Power Driven B-Series RMF Version 2 header boasts a true 4-1 merge collector with a megaphone to balance exhaust flow & optimize peak horsepower.
Featuring two updated designs - an integrated skid plate (removable) - a reverse cone megaphone collector - this 1-piece exhaust manifold can differ in length from stock headers and may require an adapter pipe for installation.


  • 304 brushed stainless steel
  • Megaphone collector with reverse cone
  • Hand TIG welded
  • CNC machined manifold flange


  • A/C and P/S compatible (slim fans required)
  • One piece design


  • True 2.5 inch exhaust header collector
  • 18 gauge, mandrel bend tubing

Note: Not factory length, you will need an extension pipe. Slim fans maybe required to clear radiator. Half core radiator must be used. Want more performance? Check out our B-Series Big Tube Header here.


  • Recommended for 1.8L - 2.0L B series displacement engines.

What's Included?

Install Guide


  • One year manufacturer warranty.


We realize that returns and exchanges are a part of the purchasing process and we do our best to make it as easy as possible. If you are not 100% satisfied with your purchase, you can return your order to Liken Motorsports within 30 DAYS from the invoice date.

View Full Policy


Have a question? Use the chat bubble! We'll do our best to respond within 24-48 hours.

View full details

PLM 4-1 RF Exhaust Header w/ Megaphone Collector - B-Series Engine

Customer Reviews

Be the first to write a review

Frequently Asked Questions

Do you ship overseas?

Yes, we ship all over the world. Shipping costs will apply, and will be added at checkout. We run discounts and promotions all year, so stay tuned for exclusive deals.

How long will it take to get my order?

It varies based on your location. Orders processed here will take 1-7 business days to arrive. Overseas deliveries can take anywhere from 7-16 days. Delivery details and updates will be provided in your order confirmation email.

Any question?

You can contact us through our contact page! We will be happy to assist you.