The Borla CrateMuffler is purpose-built to optimize the sound and power of a specific engine family, here the Chevrolet LS3 6.2L V8. It delivers Borla's aggressive ATAK sound through Polyphonic Harmonizer technology, which uses internal pipes of differing diameters and lengths to create harmonized exhaust notes, and is tuned to reduce or eliminate drone on cataloged applications. Directional flow: the outlet end carries the welded mounting bracket. 3in offset inlet / 3in center outlet on a 6in x 10.34in oval body (14in body, 19in overall). Premium T-304 stainless steel with CNC-accurate construction.
Specifications
| Type | Engine-tuned CrateMuffler |
| Engine | Chevy LS3 6.2L V8 |
| Sound | ATAK (aggressive) - Polyphonic Harmonizer |
| Inlet/Outlet | 3in inlet / 3in outlet |
| Configuration | Offset inlet / Center outlet - directional |
| Body | Oval - 6in x 10.34in - 14in body - 19in overall |
| Material | T-304 stainless steel |
| Part Number | 400958 |
| Warranty | Million-Mile Warranty |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2010-2015 | Chevrolet | Camaro | SS |
| 2008-2013 | Chevrolet | Corvette | Base |
| 2010-2013 | Chevrolet | Corvette | Grand Sport |
| 2014-2017 | Chevrolet | SS | Base |
Shipping
- Orders placed before 3 PM EST typically ship the same business day. Larger items ship within 1 to 3 business days.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Special order items follow a lead time we confirm with you individually before the order is committed.
- Backordered items ship as soon as stock lands. Lead times are manufacturer estimates and can change. Contact us for current ETAs.
- Need to cancel? Email us right away. Cancellations are not guaranteed once an order is in process. In-stock orders cancel free before they ship; a 6% fee applies only to confirmed backorders and special orders.
- International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.
Returns
- 30 days from delivery to request and ship back a return on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee on the item price before tax and shipping. Shipping is not refunded in either direction. All waived if the item is defective or we made the error.
- Fitment guaranteed: select your vehicle above, or confirm fitment with us in writing before you order. If the part shows as a fit and it is wrong, the return is on us, even after installation. Otherwise, installed or used parts cannot be returned.
- Final sale: special orders, coilovers, electronics, engine internals, turbochargers, superchargers and turbo kits, unless defective or we sent the wrong item.
- Product images may be representative. The SKU and specifications in the listing are what ships.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Returns & Refunds · Warranty
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