HighFlo Performance

Vintage 70's 53" Thrush Outsider Sidepipe Chambered Muffler Replacement (pair)

Vintage 70's 53
Vintage 70's 53
Vintage 70's 53
Vintage 70's 53
Vintage 70's 53
Vintage 70's 53
$295.00 In Stock Sold out - Call To Order




  • Description
  • Shipping and Refund
  • Free T-Shirt With $150 Order
  • Reviews

We take great pride in custom making everything in our shop in Michigan from sidepipes, mufflers, and full chambered systems for early to late muscle cars. Original inserts are getting harder and harder to find, so we came up with an upgrade! We use our HighFlo Performance 2" inner baffle that is 53" in length, Then the 3" outer casing is pinched accordingly to give you that great old school rumble. We've developed special flared caps that are expanded to just under 3.5" O.D. to fit inside your thrush casing correctly just like the factory. So throw out your worn out, blown out muffler inserts and pick up a new set of HighFlo Performance inserts today!

30 LBS

Return Policy

We accept returns. You can return unopened items in the original packaging within 30 days of your purchase with receipt or proof of purchase. If 30 days or more have passed since your purchase, we cannot offer you a refund or an exchange.

Upon receipt of the returned item, we will fully examine it and notify you via email, within a reasonable period of time, whether you are entitled to a return. If you are entitled to a return, we will refund your purchase price and a credit will automatically be applied to your original method of payment.

Only regular priced items may be refunded. Sale items are non-refundable.

To follow-up on the status of your return, please contact us at (231) 825-0155

2. Exchanges 

We only exchange goods if they are defective or damaged. In circumstances where you consider that a product is defective, you should promptly contact us at (231) 825-0155 with details of the product and the defect. You can send the item you consider defective to:

Upon receipt of the returned product, we will fully examine it and notify you via e-mail, within a reasonable period of time, whether you are entitled to a replacement as a result of the defect. If you are eligible, we will send you a replacement product.

4. Shipping

To return the item you purchased, please mail it to:

HighFlo Performance
9240 S. Morey Road
McBain, Michigan

Refunds do not include any shipping and handling charges shown on the packaging slip or invoice. Shipping charges for all returns must be prepaid and insured by you. You are responsible for any loss or damage to hardware during shipment. We do not guarantee that we will receive your returned item. Shipping and handling charges are not refundable. Any amounts refunded will not include the cost of shipping.

Receive a free HighFlo Performance T-Shirt with your order of $150 or more! Click here to add a t-shirt to your order, discount will be applied to your order automatically.

Available in gray and black or black and silver. High-quality T-Shirts locally made in Northern Michigan!
S, M, L, X, XL, XXL, & XXXL sizes available.

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